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Subject: RE: snapshot enhancements functional spec (schedule)
Date: Mon, 29 Oct 2007 12:36:15 -0700
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E0638438D@onstor-exch02.onstor.net>
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Thread-Topic: snapshot enhancements functional spec (schedule)
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From: "Charissa Willard" <charissa.willard@onstor.com>
To: "Henry Lau" <henry.lau@onstor.com>
Cc: "dl-Design Review" <dl-designreview@onstor.com>

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Henry,

=20

I would eventually prefer all hour values to be the same. Especially
since we have the case where the mirror hour values are 0..23 and the
snapshot hour values are 1..24, but it's always been that way as far as
I know. So I think we can make the hour values consistent as a separate
task in the future as you suggest though.

=20

Thanks,

Charissa

=20

________________________________

From: Henry Lau=20
Sent: Monday, October 29, 2007 12:01 PM
To: Charissa Willard
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec (schedule)

=20

Hi Charissa,

=20

See comments.

=20

For 1)

The doc I sent this morning contained the exact information you
mentioned.


For 2)=20

We cannot change the hours for the snapshot schedule to (0 - 23).
Customers running scripts today do not aware of these changes. In the
last meeting, we decided not to make any changes for any previous
options for R98. We can standardize all the CLIs in the future projects.

=20

Regards,

Henry

=20

________________________________

From: Charissa Willard=20
Sent: Monday, October 29, 2007 11:31 AM
To: Henry Lau; Tim Gardner; Paul Hammer
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec (schedule)

=20

1.) The goal is to keep the schedule parameter abbreviations the same
for all cli commands that contain schedule parameters. The snapshot
schedule parameters are now like the other schedule parameters. The only
outstanding issue regarding abbreviations is the new "Hour of Day in
Week".=20

=20

The text Jobi provided explains this parameter well and we need to make
sure this explanation is in the help text:

=20

Provide an option to configure a day and hour at which weekly snapshots
are taken instead of the default Sunday midnight.

=20

For this requirement, we need to make sure both DOW and HODW are
specified.

=20

-D DOW          Use with -D option to specify the day of the week that
starts the snapshot. Valid values range from 1 to 7 where 1 is Monday
and 7 is Sunday.=20

=20

-H HODW        Use with -H option to specify the hour of the day in the
week that starts the snapshot. Valid values range from 1 to 24 where 24
is midnight and 1 is 1 a.m. =20

=20

=20

2.) There is one more issue we could use help on. Years ago when
schedule values were first defined for our cli, they were defined to
match the crontab values. The crontab values are as follows:

=20

*     *   *   *    *  command to be executed
-     -    -    -    -
|     |     |     |     |
|     |     |     |     +----- day of week (0 - 6) (Sunday=3D0)
|     |     |     +------- month (1 - 12)
|     |     +--------- day of month (1 - 31)
|     +----------- hour (0 - 23)
+------------- min (0 - 59)

=20

=20

However, using the crontab values is not necessarily the way to go,
especially when specifying the DOW. We changed the DOW values in the
other schedules to be able to use 1..7 instead of 0..6. 7 is now used
for Sunday instead of 0. Note that 0 can also be used for Sunday for
backward compatibility though.  With regard to hours, the crontab values
are 0..23. This command specifies 1..24. The military values (0000..2300
hours) are similar to the crontab values (0..23). We may want to keep
0..23 instead of 1..24. Any thoughts on this?

=20

-Charissa

=20

________________________________

From: Henry Lau=20
Sent: Monday, October 29, 2007 10:11 AM
To: Paul Hammer; Tim Gardner
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec (schedule)

=20

Hi All,

=20

The doc is updated with the requirement and the option usages. HODW is
used instead of HOW to specify the time of the day in the week. I don't
see there is a need for a meeting, but if the confusion still happens,
we can setup one.

=20

Thanks

=20

Henry=20

=20

=20

________________________________

From: Paul Hammer=20
Sent: Friday, October 26, 2007 8:00 PM
To: Jobi Ariyamannil; Tim Gardner; Henry Lau
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

This is a good feature for us to have a meeting on to close on the open
items.

________________________________

From: Jobi Ariyamannil
Sent: Fri 10/26/2007 4:41 PM
To: Tim Gardner; Henry Lau; Paul Hammer
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec

If snapshots schedules overlap, only one snapshot is taken today.

So customers may want to have both weekly and daily snapshots taken on
the same day because of the different retention policies.

=20

As far as we understand, the requirement of this feature planned in R98
is stated below.

=20

Provide an option to configure a day and hour at which weekly snapshots
are taken instead of the default Sunday midnight.

Provide an option to configure hour at which daily snapshots are taken
instead of the default midnight.=20

=20

If there is something more than that is needed (including changing the
any other current behavior), let us have a different project for the
same.

=20

Regards,

Jobi

=20

________________________________

From: Tim Gardner=20
Sent: Friday, October 26, 2007 4:29 PM
To: Henry Lau; Paul Hammer
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

Actually, DOW, DOM, HOD are very easy to understand. HOW is the one that
is problematic.

I agree with Paul. Need a better name for describing the hour of the day
that is used for the weekly snapshot.

=20

I thought that in the meeting we agreed that there was no need for this
and that it was desirable for the daily and

weekly snapshots to fire at the same hour. This means HOW can go away.

=20

________________________________

From: Henry Lau=20
Sent: Friday, October 26, 2007 4:26 PM
To: Paul Hammer
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

I bet no one can understand what are DOW, DOM, HOD, HOW... unless he/she
read the help page.

=20

Henry

=20

________________________________

From: Paul Hammer=20
Sent: Friday, October 26, 2007 4:18 PM
To: Henry Lau; dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

Think HOW is not correct, at least having a hard time understanding what
it really means.=20

=20

________________________________

From: Henry Lau=20
Sent: Friday, October 26, 2007 3:23 PM
To: dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

Having discussed with Charissa, we will follow the rule as

=20

DOW   - Day of week (1 Monday  - 7 Sunday)=20

HOD   -  Hour of Day  (1 - 24)

HOW -   Hour of week (1 - 24)

=20

Henry

=20

________________________________

From: Charissa Willard=20
Sent: Friday, October 26, 2007 3:06 PM
To: Henry Lau
Cc: Joshua Goldenhar; dl-Design Review
Subject: FW: snapshot enhancements functional spec

=20

Actually it looks like the -t option is used to specify the "Hour Of
Day" (HOD) value and -h is used to specify the max number of hourly
snapshots for the "snapshot schedule" command. There is no "hour of
week" option. Nonetheless, note that the -h option is used to specify
the HOD in the commands with other schedule parameters.

=20

________________________________

From: Charissa Willard=20
Sent: Friday, October 26, 2007 2:50 PM
To: Henry Lau
Cc: Joshua Goldenhar; dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

The help text for the snapshot schedule parameters should be consistent
with the help text for existing commands that also have schedule
parameters. For example, the mirror schedule refers to "Day of
[Month|Week]", where we specify the option values as DOM and DOW,
respectively. Likewise, we have "Hour of [day]" (should be "-h HOD").
Now we will add to that "Hour of [week]" (should be "-t HOW"). We should
stick to this convention. This is the current help text for the mirror
schedule. We will need to change the mirror schedule help text for hour
from "-h HOUR" to "-h HOD" to be consistent.

=20

        -d DOM                  Specifies the day in a month that
initiates a

                                mirror session. Valid values range from
1 to 31

                                where 1 is the first of the month and 31
is the

                                last day of the month.

        -D DOW                  Specifies the day of the week that
initiates a

                                mirror session. Valid values range from
0 to

                                6 where 0 is Sunday and 6 is Saturday.

        -h HOUR                 Specifies the hour of the day that
initiates a

                                mirror session. Valid values range from
0 to 23

                                where 0 is midnight and 23 is 11:00 p.m.

=20

=20

________________________________

From: Henry Lau=20
Sent: Friday, October 26, 2007 2:37 PM
To: Joshua Goldenhar
Cc: dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

Hi Joshua,

=20

Please see comments below.

=20

Henry

=20

________________________________

From: Joshua Goldenhar=20
Sent: Friday, October 26, 2007 2:15 PM
To: Henry Lau; dl-Design Review
Subject: RE: snapshot enhancements functional spec

=20

I have the following inputs on the snapshot enhancements:

=20

1)       Terminology (help, CLI):

a.       The names for the parameters are inconsistent and might lead to
confusion. For example, the existing parameters for -d and -w are
MAXDAILY and MAXWEEKLY respectively. Yet the new proposed -D option
parameter is WEEKDAY. To me, this can be interpreted as WEEKLYDAY (which
is what we want) or WEEKDAILY. Same problem for -H WEEKHOUR (WEEKLYHOUR
or WEEKHOURLY??).  With that, I'd like to see:

                                                               i.
-D WEEKLYDAY

                                                             ii.      -H
WEEKLYHOUR

                                                            iii.      -t
DAILYHOUR

=20

>>  WEEKDAY/WEEKHOUR/DAYHOUR were decided from the last review meeting.=20

=20

2)        Operations:

a.       Conflicts.

                                                               i.      I
don't agree with the proposed solution of:

"If the schedules of the weekly, daily, and hourly snapshots are
conflicted, only the weekly snapshot will be taken. If the schedules of
the daily and hourly snapshot are conflicted, only the daily snapshot
will be taken."

Weekly vs. daily vs. hourly snapshots have different purposes for the
end users. Often, snapshots are differentiated for retention policy -
that is, you might keep around 12 hourlies, 6 Dailies and 2 weeklies
which gives you a scale of restore options that goes from highly
granular for more recent snapshots to less granular for older snapshots.
The proposed conflict resolution would in essence still have snapshots
for the time periods in question (since the midnight daily would take
the place of the midnight hourly) but it makes me work hard as an
administrator to do my retention rules and difficult for end-users who
will behave like end-users...

Can we not do both snapshots? If not simultaneously, can we queue one to
start after the other completes?

Or could we handle it by simply checking the existing schedule and
disallowing conflicts (may require allowing admin to specify minute as
well).

=20

>> It is not a proposed solution, it behaved the way that previous
releases did. Please check the current help snap show. We are not going
to make changes in this release.

-Josh=20

Josh Goldenhar=20
Phone: 408 963 2408, Cell: 408 547 7693=20

________________________________

From: Henry Lau=20
Sent: Thursday, October 25, 2007 5:37 PM
To: dl-Design Review
Subject:=20

=20

Hi,

=20

I separate the original doc into 2 separate docs, one for schedule
snapshot enhancement and one for auto-removal of snapshots. Information
is updated.=20

=20

The doc for schedule snapshot enhancement is attached and also copied to
/n/software/FileSystem.

The doc for auto-removal of snapshots will be sent later and will be
reviewed again with the Marketing input.

=20

Thanks,

Henry

=20

=20

Henry Lau
Software engineer

ONStor, Inc.
office: 408.963-2486

Henry.lau@onstor.com=20
http://www.onstor.com <http://www.onstor.com/>=20

=20

=20


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<div class=3DSection1>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'>Henry,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'>I would eventually prefer all hour values to =
be the
same. Especially since we have the case where the mirror hour values are =
0..23
and the snapshot hour values are 1..24, but it&#8217;s always been that =
way as
far as I know. So I think we can make the hour values consistent as a =
separate
task in the future as you suggest though.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'>Thanks,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'>Charissa<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Henry Lau</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Monday, October 29, =
2007
12:01 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Charissa
 Willard</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec (schedule)</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hi =
Charissa,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>See =
comments.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>For 1)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>The doc I sent this morning =
contained the
exact information you mentioned.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><br>
For 2) <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>We cannot change the hours for the
snapshot schedule to (0 &#8211; 23). Customers running scripts today do =
not
aware of these changes. In the last meeting, we decided not to make any =
changes
for any previous options for R98. We can standardize all the CLIs in the =
future
projects.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p=
>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Henry<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Charissa Willard</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Monday, October 29, =
2007
11:31 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Henry
 Lau</st1:PersonName>; <st1:PersonName w:st=3D"on">Tim =
Gardner</st1:PersonName>;
Paul Hammer<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec (schedule)</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>1.) The goal is to keep the schedule parameter =
abbreviations
the same for all cli commands that contain schedule parameters. The =
snapshot
schedule parameters are now like the other schedule parameters. The only
outstanding issue regarding abbreviations is the new &#8220;Hour of Day =
in
Week&#8221;. <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>The text Jobi provided explains this parameter well =
and we
need to make sure this explanation is in the help =
text:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Provide an option to configure a =
day and
hour at which weekly snapshots are taken instead of the default Sunday
midnight.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>For this requirement, we need to =
make
sure <b><span style=3D'font-weight:bold'>both</span></b> DOW and HODW =
are
specified.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-D =
DOW&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Use with &#8211;D option to specify the day of the week that starts the
snapshot. Valid values range from 1 to 7 where 1 is Monday and 7 is =
Sunday. <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-H HODW&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Use =
with
&#8211;H option to specify the hour of the day in the week that starts =
the
snapshot. Valid values range from 1 to 24 where 24 is midnight and 1 is =
1
a.m.&nbsp; <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>2.) There is one more issue we could use help on. =
Years ago
when schedule values were first defined for our cli, they were defined =
to match
the crontab values. The crontab values are as =
follows:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>*&nbsp;&nbsp;&nbsp;&nbsp;
*&nbsp;&nbsp; *&nbsp;&nbsp; *&nbsp;&nbsp;&nbsp; *&nbsp; command to be =
executed<br>
-&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;
-&nbsp;&nbsp;&nbsp; -<br>
|&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp; =
|&nbsp;&nbsp;&nbsp;&nbsp;
|&nbsp;&nbsp;&nbsp;&nbsp; |<br>
|&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp; =
|&nbsp;&nbsp;&nbsp;&nbsp;
|&nbsp;&nbsp;&nbsp;&nbsp; +----- day of week (0 - 6) (Sunday=3D0)<br>
|&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp; =
|&nbsp;&nbsp;&nbsp;&nbsp;
+------- month (1 - 12)<br>
|&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp; +--------- day of =
month (1
- 31)<br>
|&nbsp;&nbsp;&nbsp;&nbsp; +----------- hour (0 - 23)<br>
+------------- min (0 - 59)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>However, using the crontab values is not necessarily =
the way
to go, especially when specifying the DOW. We changed the DOW values in =
the
other schedules to be able to use 1..7 instead of 0..6. 7 is now used =
for
Sunday instead of 0. Note that 0 can also be used for Sunday for =
backward
compatibility though. &nbsp;With regard to hours, the crontab values are =
0..23.
This command specifies 1..24. The military values (0000..2300 hours) are
similar to the crontab values (0..23). We may want to keep 0..23 instead =
of
1..24. Any thoughts on this?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-Charissa<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Henry Lau</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Monday, October 29, =
2007
10:11 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Paul Hammer; =
<st1:PersonName
w:st=3D"on">Tim Gardner</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec (schedule)</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hi =
All,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>The doc is updated with the =
requirement
and the option usages. </span></font>HODW is used instead of HOW to =
specify the
time of the day in the week. I don&#8217;t see there is a need for a =
meeting,
but if the confusion still happens, we can setup one.<o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Thanks<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Henry </span></font><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'><o:p></o:p></span=
></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Paul =
Hammer <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
8:00 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Jobi
 Ariyamannil</st1:PersonName>; <st1:PersonName w:st=3D"on">Tim =
Gardner</st1:PersonName>;
<st1:PersonName w:st=3D"on">Henry Lau</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<div id=3DidOWAReplyText58051>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>This is a good feature for us to have a meeting on to close on =
the open
items.<o:p></o:p></span></font></p>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><b><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</spa=
n></font></b><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> <st1:PersonName
w:st=3D"on">Jobi Ariyamannil</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Fri 10/26/2007 4:41 =
PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Tim
 Gardner</st1:PersonName>; <st1:PersonName w:st=3D"on">Henry =
Lau</st1:PersonName>;
Paul Hammer<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

</div>

<div>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>If snapshots schedules overlap, =
only one
snapshot is taken today.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>So customers may want to have both =
weekly
and daily snapshots taken on the same day because of the different =
retention
policies.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>As far as we understand, the =
requirement
of this feature planned in R98 is stated =
below.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Provide an option to configure a =
day and
hour at which weekly snapshots are taken instead of the default Sunday
midnight.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Provide an option to configure hour =
at
which daily snapshots are taken instead of the default midnight. =
</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>If there is something more than =
that is
needed (including changing the any other current behavior), let us have =
a
different project for the same.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Regards,</span></font><o:p></o:p></p=
>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Jobi</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Tim Gardner</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
4:29 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Henry
 Lau</st1:PersonName>; Paul Hammer<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Actually, DOW, DOM, HOD are very =
easy to
understand. HOW is the one that is =
problematic.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I agree with Paul. Need a better =
name for
describing the hour of the day that is used for the weekly =
snapshot.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I thought that in the meeting we =
agreed
that there was no need for this and that it was desirable for the daily =
and</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>weekly snapshots to fire at the =
same hour.
This means HOW can go away.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Henry Lau</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
4:26 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Paul Hammer<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I bet no one can understand what =
are DOW,
DOM, HOD, HOW&#8230; unless he/she read the help =
page.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Henry</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Paul =
Hammer <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
4:18 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Henry
 Lau</st1:PersonName>; dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Think HOW is not correct, at least =
having
a hard time understanding what it really means. =
</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Henry Lau</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
3:23 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Having discussed with Charissa, we =
will
follow the rule as</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>DOW&nbsp;&nbsp; - Day of week (1 =
Monday
&nbsp;&#8211; 7 Sunday) </span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>HOD&nbsp;&nbsp; -&nbsp; Hour of =
Day&nbsp;
(1 &#8211; 24)</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>HOW -&nbsp;&nbsp; Hour of week (1 =
&#8211;
24)</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Henry</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Charissa Willard</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
3:06 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Henry
 Lau</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> <st1:PersonName =
w:st=3D"on">Joshua
 Goldenhar</st1:PersonName>; dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> FW: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'>Actually it looks like the &#8211;t option is =
used
to specify the &#8220;Hour Of Day&#8221; (HOD) value and &#8211;h is =
used to
specify the max number of hourly snapshots for the &#8220;snapshot
schedule&#8221; command. There is no &#8220;hour of week&#8221; option.
Nonetheless, note that the &#8211;h option is used to specify the HOD in =
the
commands with other schedule parameters.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Charissa Willard</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
2:50 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Henry
 Lau</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> <st1:PersonName =
w:st=3D"on">Joshua
 Goldenhar</st1:PersonName>; dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D1 face=3D"Courier New"><span =
style=3D'font-size:9.0pt;
font-family:"Courier New"'>The help text for the snapshot schedule =
parameters
should be consistent with the help text for existing commands that also =
have
schedule parameters. For example, the mirror schedule refers to =
&#8220;Day of
[Month|Week]&#8221;, where we specify the option values as DOM and DOW,
respectively. Likewise, we have &#8220;Hour of [day]&#8221; (should be
&#8220;-h HOD&#8221;). Now we will add to that &#8220;Hour of =
[week]&#8221;
(should be &#8220;-t HOW&#8221;). We should stick to this convention. =
This is
the current help text for the mirror schedule. We will need to change =
the
mirror schedule help text for hour from &#8220;-h HOUR&#8221; to =
&#8220;-h
HOD&#8221; to be consistent.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -d
DOM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Specifies the day in a month that initiates =
a</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
mirror session. Valid values range from 1 to =
31</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
where 1 is the first of the month and 31 is =
the</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;last
<font color=3Dblack><span style=3D'color:black'>day of </span></font>the =
month.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -D
DOW&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Specifies the <font color=3Dblack><span style=3D'color:black'>day of =
</span></font>the
week that initiates a</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
mirror session. Valid values range from 0 =
to</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
6 where 0 is Sunday and 6 is Saturday.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -h
HOUR&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;
Specifies the hour of the day that initiates =
a</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
mirror session. Valid values range from 0 to =
23</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;
font-family:"Courier =
New"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
where 0 is midnight and 23 is 11:00 p.m.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Henry Lau</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
2:37 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Joshua
 Goldenhar</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hi =
Joshua,</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Please see comments =
below.</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Henry</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Joshua Goldenhar</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, October 26, =
2007
2:15 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Henry
 Lau</st1:PersonName>; dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: snapshot =
enhancements
functional spec</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I have the following inputs on the
snapshot enhancements:</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.25in'><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>1)</span></font><font size=3D1 color=3Dnavy><span =
style=3D'font-size:
7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>Terminology (help, CLI):</span></font><o:p></o:p></p>

<p class=3DMsoNormal =
style=3D'margin-left:1.0in;text-indent:-.25in'><font size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>a.</span></font><font size=3D1 color=3Dnavy><span =
style=3D'font-size:
7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>The names for the parameters are inconsistent and might lead =
to confusion.
For example, the existing parameters for &#8211;d and &#8211;w are =
MAXDAILY and
MAXWEEKLY respectively. Yet the new proposed &#8211;D option parameter =
is
WEEKDAY. To me, this can be interpreted as WEEKLYDAY (which is what we =
want) or
WEEKDAILY. Same problem for &#8211;H WEEKHOUR (WEEKLYHOUR or
WEEKHOURLY??).&nbsp; With that, I&#8217;d like to =
see:</span></font><o:p></o:p></p>

<p class=3DMsoNormal =
style=3D'margin-left:1.5in;text-indent:-1.5in'><font size=3D1
color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></font><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:navy'>i.</span></font><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>&#8211;D WEEKLYDAY</span></font><o:p></o:p></p>

<p class=3DMsoNormal =
style=3D'margin-left:1.5in;text-indent:-1.5in'><font size=3D1
color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></font><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:navy'>ii.</span></font><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>&#8211;H WEEKLYHOUR</span></font><o:p></o:p></p>

<p class=3DMsoNormal =
style=3D'margin-left:1.5in;text-indent:-1.5in'><font size=3D1
color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;
</span></font><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:navy'>iii.</span></font><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>&#8211;t DAILYHOUR</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&gt;&gt;&nbsp; =
WEEKDAY/WEEKHOUR/DAYHOUR
were decided from the last review meeting. </span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.25in'><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>2)</span></font><font size=3D1 color=3Dnavy><span =
style=3D'font-size:
7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>&nbsp;Operations:</span></font><o:p></o:p></p>

<p class=3DMsoNormal =
style=3D'margin-left:1.0in;text-indent:-.25in'><font size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>a.</span></font><font size=3D1 color=3Dnavy><span =
style=3D'font-size:
7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>Conflicts.</span></font><o:p></o:p></p>

<p class=3DMsoNormal =
style=3D'margin-left:1.5in;text-indent:-1.5in'><font size=3D1
color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></font><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:navy'>i.</span></font><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.0pt;color:navy'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>I don&#8217;t agree with the proposed solution =
of:</span></font><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:99.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&#8220;</span></f=
ont>If
the schedules of the weekly, daily, and hourly snapshots are conflicted, =
only
the weekly snapshot will be taken. If the schedules of the daily and =
hourly snapshot
are conflicted, only the daily snapshot will be =
taken.&#8221;<o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:99.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Weekly
vs. daily vs. hourly snapshots have different purposes for the end =
users.
Often, snapshots are differentiated for retention policy &#8211; that =
is, you
might keep around 12 hourlies, 6 Dailies and 2 weeklies which gives you =
a scale
of restore options that goes from highly granular for more recent =
snapshots to
less granular for older snapshots. The proposed conflict resolution =
would in
essence still have snapshots for the time periods in question (since the
midnight daily would take the place of the midnight hourly) but it makes =
me
work hard as an administrator to do my retention rules and difficult for
end-users who will behave like =
end-users&#8230;</span></font><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:99.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Can we
not do both snapshots? If not simultaneously, can we queue one to start =
after
the other completes?</span></font><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:99.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Or could
we handle it by simply checking the existing schedule and disallowing =
conflicts
(may require allowing admin to specify minute as =
well).</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&gt;&gt; It is not a proposed =
solution, it
behaved the way that previous releases did. Please check the current =
help snap
show. We are not going to make changes in this =
release.</span></font><o:p></o:p></p>

<div>

<p><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:
Arial;color:navy'>-Josh</span></font><font color=3Dnavy><span =
style=3D'color:navy'>
</span></font><o:p></o:p></p>

<p><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:
Arial;color:navy'>Josh Goldenhar</span></font><font color=3Dnavy><span
style=3D'color:navy'> <br>
</span></font><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:navy'>Phone: 408 963 2408, Cell: 408 547 =
7693</span></font><font
color=3Dnavy><span style=3D'color:navy'> </span></font><o:p></o:p></p>

</div>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Henry Lau</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, October =
25, 2007
5:37 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> dl-Design Review<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> =
</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi,</span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I separate the original doc into 2 separate docs, one =
for
schedule snapshot enhancement and one for auto-removal of snapshots.
Information is updated. </span></font><o:p></o:p></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoBodyText><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt'>The
doc for schedule snapshot enhancement is attached and also copied to =
/n/software/FileSystem.<o:p></o:p></span></font></p>

<p class=3DMsoBodyText><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt'>The
doc for auto-removal of snapshots will be sent later and will be =
reviewed again
with the Marketing input.<o:p></o:p></span></font></p>

<p class=3DMsoBodyText><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoBodyText><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt'>Thanks,<o:p></o:p></span></font></p>

<p class=3DMsoBodyText><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt'>Henry<o:p></o:p></span></font></p>

<p class=3DMsoBodyText><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt'>&nbsp;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'><img =
width=3D332 height=3D38
id=3D"_x0000_i1025" =
src=3D"cid:image001.gif@01C81A27.FC85E820"><o:p></o:p></span></font></p>

<table class=3DMsoNormalTable border=3D0 cellspacing=3D0 cellpadding=3D0 =
width=3D332
 style=3D'width:249.0pt'>
 <tr>
  <td width=3D150 valign=3Dtop style=3D'width:112.5pt;padding:0in 0in =
0in 0in'>
  <p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><st1:PersonName =
w:st=3D"on"><strong><b><font
   size=3D1 face=3DVerdana><span =
style=3D'font-size:7.5pt;font-family:Verdana'>Henry
   Lau</span></font></b></strong></st1:PersonName><font size=3D1 =
face=3DVerdana><span
  style=3D'font-size:7.5pt;font-family:Verdana'><br>
  Software engineer<br>
  <br>
  ONStor, Inc.<br>
  <b><span style=3D'font-weight:bold'>office:</span></b> =
408.963-2486</span></font><o:p></o:p></p>
  <p class=3DMsoNormal><font size=3D1 face=3DVerdana><span =
style=3D'font-size:7.5pt;
  font-family:Verdana'>Henry.lau@onstor.com <br>
  <a href=3D"http://www.onstor.com/"><b><font color=3D"#005c8f"><span
  =
style=3D'color:#005C8F;font-weight:bold;text-decoration:none'>http://www.=
onstor.com</span></font></b></a></span></font><o:p></o:p></p>
  </td>
  <td width=3D150 valign=3Dtop style=3D'width:112.5pt;padding:0in 0in =
0in 0in'>
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