I have an F760 I need to swap out with a new F760. A cold swap would only cause 10 minutes of downtime, but it would be cool setup a temporary cluster and do a takeover with no downtime.
How feasible is this? Would setting up the cluster situtaion mandate a reboot of the filer in question anyway?
-tavis New Dream Network
Tavis;
You would have to move the drive shelves from the old filer head to the new filer head anyway, and to do that you've got to shutdown/restart the new filer too. I don't think there's any way to mystically make the new filer advertise the old shelve by "hot moving" them.
If you're running Oracle, Clearcase or SQL on the filers, the problem gets even more risky.
I agree with the others: go for a cold shutdown of the whole system and swap out the filer head itself. You can do it, literally, in less then 10 minutes total, and then you'll be completely done with it.
Good luck chief!
JKB
-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Tavis Gustafson Sent: Friday, August 06, 2004 2:21 PM To: toasters@mathworks.com Subject: cold head swap or temporary cluster finangle?
I have an F760 I need to swap out with a new F760. A cold swap would only cause 10 minutes of downtime, but it would be cool setup a temporary cluster and do a takeover with no downtime.
How feasible is this? Would setting up the cluster situtaion mandate a reboot of the filer in question anyway?
-tavis New Dream Network
"James Brigman" wrote:
You can do it, literally, in less then 10 minutes total, and then you'll be completely done with it.
Totally agree. The biggest thing you can do to speed up the changeover is to rack the new head unit up above/below/beside the old one. Sure you'll end up with a gap where the old one was but you won't waste 5 minutes wrestling them out of the rack.
Thanks for the advice. The cold swap went great, 6 minutes total downtime! wheee!.
_tavis
On Fri, Aug 06, 2004 at 09:43:40PM -0400, James Brigman wrote:
Tavis;
You would have to move the drive shelves from the old filer head to the new filer head anyway, and to do that you've got to shutdown/restart the new filer too. I don't think there's any way to mystically make the new filer advertise the old shelve by "hot moving" them.
If you're running Oracle, Clearcase or SQL on the filers, the problem gets even more risky.
I agree with the others: go for a cold shutdown of the whole system and swap out the filer head itself. You can do it, literally, in less then 10 minutes total, and then you'll be completely done with it.
Good luck chief!
JKB
-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Tavis Gustafson Sent: Friday, August 06, 2004 2:21 PM To: toasters@mathworks.com Subject: cold head swap or temporary cluster finangle?
I have an F760 I need to swap out with a new F760. A cold swap would only cause 10 minutes of downtime, but it would be cool setup a temporary cluster and do a takeover with no downtime.
How feasible is this? Would setting up the cluster situtaion mandate a reboot of the filer in question anyway?
-tavis New Dream Network
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Chris Good -
James Brigman -
Tavis Gustafson