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Subject: RE: Are there any issues with removing the filer associated with the cluster name?
Date: Wed, 13 Dec 2006 09:55:19 -0800
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E013D2754@onstor-exch02.onstor.net>
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Thread-Topic: Are there any issues with removing the filer associated with the cluster name?
thread-index: Acce28xgHQMgNoCxR3We0fuA5NQPvAAACHRgAABdF5UAADAdYAAAPnVgAAAvYDU=
References: <BB375AF679D4A34E9CA8DFA650E2B04E0116B4A5@onstor-exch02.onstor.net>
From: "Paul Hammer" <paul.hammer@onstor.com>
To: "Sandrine Boulanger" <sandrine.boulanger@onstor.com>,
	"Brian Baker" <brian.baker@onstor.com>,
	"Kevin Matthews" <kevin.matthews@onstor.com>,
	"dl-cstech" <dl-cstech@onstor.com>

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=20
I think we should meet and discuss our options (some one could =
accelerate that by writing a straw man approach first) and come up with =
an approach that we can test in QA before trying it on MD. This is also =
a workflow that we will need to doucment and support in the feild.
=20
Thanks,
=20
-Paul

________________________________

From: Sandrine Boulanger
Sent: Wed 12/13/2006 9:53 AM
To: Brian Baker; Paul Hammer; Kevin Matthews; dl-cstech
Subject: RE: Are there any issues with removing the filer associated =
with the cluster name?



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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<DIV dir=3Dltr><FONT face=3DArial color=3D#000000 =
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<DIV dir=3Dltr>I think we should meet and discuss our options (some one =
could accelerate that by writing a straw man approach first) and come up =
with an approach that we can test in QA before trying it on MD. This is =
also a workflow that we will need to doucment and support in the =
feild.</DIV>=0A=
<DIV dir=3Dltr>&nbsp;</DIV>=0A=
<DIV dir=3Dltr>Thanks,</DIV>=0A=
<DIV dir=3Dltr>&nbsp;</DIV>=0A=
<DIV dir=3Dltr>-Paul<BR></DIV>=0A=
<DIV dir=3Dltr>=0A=
<HR tabIndex=3D-1>=0A=
</DIV>=0A=
<DIV dir=3Dltr><FONT face=3DTahoma size=3D2><B>From:</B> Sandrine =
Boulanger<BR><B>Sent:</B> Wed 12/13/2006 9:53 AM<BR><B>To:</B> Brian =
Baker; Paul Hammer; Kevin Matthews; dl-cstech<BR><B>Subject:</B> RE: Are =
there any issues with removing the filer associated with the cluster =
name?<BR></FONT><BR></DIV>=0A=
<DIV>=0A=
<DIV class=3DSection1>=0A=
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">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.</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT>&nbsp;</P>=0A=
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</SPAN></FONT></DIV>=0A=
<P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN =
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT face=3DTahoma size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; 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> Paul =
Hammer; Sandrine Boulanger; Kevin Matthews; 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></P></DIV>=0A=
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN =
style=3D"FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>=0A=
<P class=3DMsoNormal><FONT face=3DCalibri color=3D#1f497d size=3D2><SPAN =
style=3D"FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri">Paul, =
Sandrine</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DCalibri color=3D#1f497d size=3D2><SPAN =
style=3D"FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri">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. </SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DCalibri color=3D#1f497d size=3D2><SPAN =
style=3D"FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri">The =
burden of moving the data is something that we are going to have to do =
in any case.</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DCalibri color=3D#1f497d size=3D2><SPAN =
style=3D"FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: =
Calibri"></SPAN></FONT>&nbsp;</P>=0A=
<P class=3DMsoNormal><FONT face=3DCalibri color=3D#1f497d size=3D2><SPAN =
style=3D"FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: =
Calibri">Brian</SPAN></FONT></P>=0A=
<P class=3DMsoNormal><FONT face=3DCalibri color=3D#1f497d size=3D2><SPAN =
style=3D"FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: =
Calibri"></SPAN></FONT>&nbsp;</P>=0A=
<DIV>=0A=
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<P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN =
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT face=3DTahoma size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> Paul Hammer <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; Kevin Matthews; 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></P></DIV></DIV>=0A=
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN =
style=3D"FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>=0A=
<DIV id=3DidOWAReplyText94426>=0A=
<DIV>=0A=
<P class=3DMsoNormal><FONT face=3DArial color=3Dblack size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Arial">Should we =
meet and discuss an approach.</SPAN></FONT></P></DIV></DIV>=0A=
<DIV>=0A=
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN =
style=3D"FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>=0A=
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =
face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">=0A=
<HR align=3Dcenter width=3D"100%" SIZE=3D2>=0A=
</SPAN></FONT></DIV>=0A=
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt"><B><FONT =
face=3DTahoma size=3D2><SPAN style=3D"FONT-WEIGHT: bold; FONT-SIZE: =
10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=3DTahoma =
size=3D2><SPAN style=3D"FONT-SIZE: 10pt; 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> Kevin Matthews; 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></P></DIV>=0A=
<DIV>=0A=
<P><FONT face=3DArial color=3Dnavy size=3D2><SPAN style=3D"FONT-SIZE: =
10pt; COLOR: navy; FONT-FAMILY: Arial">You cannot remove</SPAN></FONT> =
<FONT face=3DArial color=3Dnavy size=3D2><SPAN style=3D"FONT-SIZE: 10pt; =
COLOR: navy; FONT-FAMILY: Arial">from the cluster</SPAN></FONT> <FONT =
face=3DArial color=3Dnavy size=3D2><SPAN style=3D"FONT-SIZE: 10pt; =
COLOR: navy; FONT-FAMILY: Arial">the filer that has the same name as the =
cluster name.</SPAN></FONT> <FONT face=3DArial color=3Dnavy =
size=3D2><SPAN style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">And since the</SPAN></FONT> <FONT face=3DArial color=3Dnavy =
size=3D2><SPAN style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">cluster name cannot be modified, we&#8217;re kind of blocked =
there.</SPAN></FONT> <FONT face=3DArial color=3Dnavy size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">You would =
have to remove the other filer first, then</SPAN></FONT> <FONT =
face=3DArial color=3Dnavy size=3D2><SPAN style=3D"FONT-SIZE: 10pt; =
COLOR: navy; FONT-FAMILY: Arial">Dogfood</SPAN></FONT> <FONT =
face=3DArial color=3Dnavy size=3D2><SPAN style=3D"FONT-SIZE: 10pt; =
COLOR: navy; FONT-FAMILY: Arial">becomes a single node.</SPAN></FONT> =
<FONT face=3DArial color=3Dnavy size=3D2><SPAN style=3D"FONT-SIZE: 10pt; =
COLOR: navy; FONT-FAMILY: Arial">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></P>=0A=
<P><FONT face=3D"Times New Roman" size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">_____________________________________________<BR><B><SPAN =
style=3D"FONT-WEIGHT: bold">From:</SPAN></B> Kevin Matthews<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></P>=0A=
<P><FONT face=3DCalibri size=3D3><SPAN style=3D"FONT-SIZE: 12pt; =
FONT-FAMILY: Calibri">All,</SPAN></FONT></P>=0A=
<P><FONT face=3DCalibri size=3D3><SPAN style=3D"FONT-SIZE: 12pt; =
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></P>=0A=
<P><FONT face=3DCalibri size=3D3><SPAN style=3D"FONT-SIZE: 12pt; =
FONT-FAMILY: =
Calibri">Kevin</SPAN></FONT></P></DIV></DIV></DIV></BODY></HTML>
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