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Subject: RE: Are there any issues with removing the filer associated with the cluster name?
Date: Wed, 13 Dec 2006 09:53:14 -0800
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Thread-Topic: Are there any issues with removing the filer associated with the cluster name?
thread-index: Acce28xgHQMgNoCxR3We0fuA5NQPvAAACHRgAABdF5UAADAdYAAAPnVg
From: "Sandrine Boulanger" <sandrine.boulanger@onstor.com>
To: "Brian Baker" <brian.baker@onstor.com>,
	"Paul Hammer" <paul.hammer@onstor.com>,
	"Kevin Matthews" <kevin.matthews@onstor.com>,
	"dl-cstech" <dl-cstech@onstor.com>

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I think that's the only option. Instead of rsync we could also connect
both clusters so that they see the same storage and we could import the
volumes. That still implies reconfiguring the new cluster. You could use
the share export/import to preserve the shares for all vsvrs and restore
them on the new Bobcat cluster once the vsvrs are re-created.

=20

________________________________

From: Brian Baker=20
Sent: Wednesday, December 13, 2006 9:49 AM
To: Paul Hammer; Sandrine Boulanger; Kevin Matthews; dl-cstech
Subject: RE: Are there any issues with removing the filer associated
with the cluster name?

=20

Paul, Sandrine

Would a viable solution be to create a new cluster on the Bobcats, rsync
all data to our dot-hill SAS and SATA storage and then re-ip the
Cheetahs? We only have 5 or so virtual servers so it seems to me that
creating a replica of our Cheetah cluster would take little work. We
would need a few hours on a Sunday to stop all connections to the
mightydog cluster, complete a final rsync and re-ip,  the new cluster
and vsvr's to the old.=20

The burden of moving the data is something that we are going to have to
do in any case.

=20

Brian

=20

From: Paul Hammer=20
Sent: Wednesday, December 13, 2006 9:38 AM
To: Sandrine Boulanger; Kevin Matthews; dl-cstech
Cc: Brian Baker
Subject: RE: Are there any issues with removing the filer associated
with the cluster name?

=20

Should we meet and discuss an approach.

=20

________________________________

From: Sandrine Boulanger
Sent: Wed 12/13/2006 9:32 AM
To: Kevin Matthews; dl-cstech
Cc: Brian Baker
Subject: RE: Are there any issues with removing the filer associated
with the cluster name?

You cannot remove from the cluster the filer that has the same name as
the cluster name. And since the cluster name cannot be modified, we're
kind of blocked there. You would have to remove the other filer first,
then Dogfood becomes a single node. But even if you add some Bobcats to
the cluster, you will not be able to remove the Dogfood cheetah since it
is the cluster name. We don't have any procedure right now to replace
Cheetahs by Bobcats. You cannot just swap the flashes since the code is
different. We'll have to find out what procedure would work.

_____________________________________________
From: Kevin Matthews
Sent: Wednesday, December 13, 2006 9:26 AM
To: dl-cstech
Cc: Brian Baker
Subject: Are there any issues with removing the filer associated with
the cluster name?

All,

As we are going to be removing the two original Cheetahs from our
Mightydog cluster (named Dogfood). Our first cheetah node in the cluster
is named Dogfood. If it is removed, will there be any issues?

Kevin


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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I think that&#8217;s the only =
option.
Instead of rsync we could also connect both clusters so that they see =
the same
storage and we could import the volumes. That still implies =
reconfiguring the
new cluster. You could use the share export/import to preserve the =
shares for
all vsvrs and restore them on the new Bobcat cluster once the vsvrs are
re-created.<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'> Brian =
Baker <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, December =
13, 2006
9:49 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Paul
 Hammer</st1:PersonName>; Sandrine Boulanger; <st1:PersonName =
w:st=3D"on">Kevin
 Matthews</st1:PersonName>; dl-cstech<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: Are there =
any issues
with removing the filer associated with the cluster =
name?</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=3D"#1f497d" =
face=3DCalibri><span
style=3D'font-size:11.0pt;font-family:Calibri;color:#1F497D'>Paul, =
Sandrine<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3D"#1f497d" =
face=3DCalibri><span
style=3D'font-size:11.0pt;font-family:Calibri;color:#1F497D'>Would a =
viable
solution be to create a new cluster on the Bobcats, rsync all data to =
our
dot-hill SAS and SATA storage and then re-ip the Cheetahs? We only have =
5 or so
virtual servers so it seems to me that creating a replica of our Cheetah
cluster would take little work. We would need a few hours on a Sunday to =
stop
all connections to the mightydog cluster, complete a final rsync and =
re-ip,
&nbsp;the new cluster and vsvr&#8217;s to the old. =
<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3D"#1f497d" =
face=3DCalibri><span
style=3D'font-size:11.0pt;font-family:Calibri;color:#1F497D'>The burden =
of moving
the data is something that we are going to have to do in any =
case.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3D"#1f497d" =
face=3DCalibri><span
style=3D'font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p>&nbsp;<=
/o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3D"#1f497d" =
face=3DCalibri><span
style=3D'font-size:11.0pt;font-family:Calibri;color:#1F497D'>Brian<o:p></=
o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3D"#1f497d" =
face=3DCalibri><span
style=3D'font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p>&nbsp;<=
/o:p></span></font></p>

<div>

<div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt =
0in 0in 0in'>

<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">Paul Hammer</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, December =
13, 2006
9:38 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Sandrine Boulanger; =
<st1:PersonName
w:st=3D"on">Kevin Matthews</st1:PersonName>; dl-cstech<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> Brian Baker<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: Are there =
any issues
with removing the filer associated with the cluster =
name?<o:p></o:p></span></font></p>

</div>

</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=3DidOWAReplyText94426>

<div>

<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:black'>Should we meet and discuss an =
approach.</span></font><o:p></o:p></p>

</div>

</div>

<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 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>

</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'> Sandrine
Boulanger<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wed 12/13/2006 9:32 =
AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Kevin
 Matthews</st1:PersonName>; dl-cstech<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> Brian Baker<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: Are there =
any issues
with removing the filer associated with the cluster =
name?</span></font><o:p></o:p></p>

</div>

<div>

<p><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:
Arial;color:navy'>You cannot remove</span></font> <font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>from the
cluster</span></font> <font size=3D2 color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>the filer that =
has the
same name as the cluster name.</span></font> <font size=3D2 color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>And
since the</span></font> <font size=3D2 color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>cluster name =
cannot be
modified, we&#8217;re kind of blocked there.</span></font> <font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>You would have to remove the other filer first, =
then</span></font> <font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>Dogfood</span></font> <font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>becomes a single =
node.</span></font>
<font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:
Arial;color:navy'>But even if you add some Bobcats to the cluster, you =
will not
be able to remove the Dogfood cheetah since it is the cluster name. We
don&#8217;t have any procedure right now to replace Cheetahs by Bobcats. =
You
cannot just swap the flashes since the code is different. We&#8217;ll =
have to
find out what procedure would work.</span></font><o:p></o:p></p>

<p><font size=3D2 face=3D"Times New Roman"><span =
style=3D'font-size:10.0pt'>_____________________________________________<=
br>
<b><span style=3D'font-weight:bold'>From:</span></b> <st1:PersonName =
w:st=3D"on">Kevin
 Matthews</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, December =
13, 2006
9:26 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> dl-cstech<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> Brian Baker<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Are there any =
issues with
removing the filer associated with the cluster =
name?</span></font><o:p></o:p></p>

<p><font size=3D3 face=3DCalibri><span =
style=3D'font-size:12.0pt;font-family:Calibri'>All,</span></font><o:p></o=
:p></p>

<p><font size=3D3 face=3DCalibri><span =
style=3D'font-size:12.0pt;font-family:Calibri'>As
we are going to be removing the two original Cheetahs from our Mightydog
cluster (named Dogfood). Our first cheetah node in the cluster is named
Dogfood. If it is removed, will there be any =
issues?</span></font><o:p></o:p></p>

<p><font size=3D3 face=3DCalibri><span =
style=3D'font-size:12.0pt;font-family:Calibri'>Kevin</span></font><o:p></=
o:p></p>

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