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Subject: RE: func spec for filesystem layout changes planned in zonda release
Date: Thu, 26 Jul 2007 08:53:35 -0700
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E04228773@onstor-exch02.onstor.net>
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Thread-Topic: func spec for filesystem layout changes planned in zonda release
Thread-Index: AcfOZ1fcj97QLA3/TZyOhVLcbCBEygBNcgvG
References: <BB375AF679D4A34E9CA8DFA650E2B04E049DF422@onstor-exch02.onstor.net>
From: "Raj Kumar" <raj.kumar@onstor.com>
To: "Jobi Ariyamannil" <jobi.ariyamannil@onstor.com>,
	"dl-Design Review" <dl-designreview@onstor.com>

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Looks good. Few comments:
=20
* CLI option to set the online EEK schedule is missing
* Is there anything apart from refcount and duplicate data block =
corruptions detections planned for Zonda, if yes please mention, helps =
us to plan our testing
* Is it feasible to add a functionality to online EEK to do regular EEK =
checks but RDONLY?
* should we limit the number of volumes that can be online EEK'd? Since =
we are going to support 100 volumes in Zonda, the temptation from the =
customers would be to enable this on all volumes, not sure how bad the =
performance will be?

________________________________

From: Jobi Ariyamannil
Sent: Tue 7/24/2007 7:56 PM
To: dl-Design Review
Subject: func spec for filesystem layout changes planned in zonda =
release



Hi,

=20

Please review the attached func spec for filesystem layout changes =
planned for zonda release.

Minor layout changes are made for additional hardening, availability, =
recovery and tracing/debugging.

Please let me know any comments you may have.

=20

Regards,

Jobi


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<DIV dir=3Dltr><FONT face=3DArial color=3D#000000 size=3D2>Looks good. =
Few comments:</FONT></DIV>=0A=
<DIV dir=3Dltr><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>=0A=
<DIV dir=3Dltr><FONT face=3DArial size=3D2>* CLI option to set the =
online EEK schedule is missing</FONT></DIV>=0A=
<DIV dir=3Dltr><FONT face=3DArial size=3D2>* Is there anything apart =
from refcount and duplicate data block corruptions detections planned =
for Zonda, if yes please mention, helps us to plan our =
testing</FONT></DIV>=0A=
<DIV dir=3Dltr><FONT face=3DArial size=3D2>* Is it feasible to add a =
functionality to online EEK to do regular EEK checks but =
RDONLY?</FONT></DIV>=0A=
<DIV dir=3Dltr><FONT face=3DArial size=3D2>* should&nbsp;we limit the =
number of volumes that can be online EEK'd? Since we are going to =
support 100 volumes in Zonda, the temptation from the customers would be =
to enable this on all volumes, not sure how bad the performance will =
be?</FONT></DIV></DIV>=0A=
<DIV dir=3Dltr><BR>=0A=
<HR tabIndex=3D-1>=0A=
<FONT face=3DTahoma size=3D2><B>From:</B> Jobi =
Ariyamannil<BR><B>Sent:</B> Tue 7/24/2007 7:56 PM<BR><B>To:</B> =
dl-Design Review<BR><B>Subject:</B> func spec for filesystem layout =
changes planned in zonda release<BR></FONT><BR></DIV>=0A=
<DIV>=0A=
<DIV class=3DSection1>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi,</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please review the attached =
func spec for filesystem layout changes planned for zonda =
release.</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Minor layout changes are =
made for additional hardening, availability, recovery and =
tracing/debugging.</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please let me know any =
comments you may have.</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Regards,</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Jobi</SPAN></FONT></P></DIV></DIV></BODY></HTML>
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