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тАО11-22-2010 10:45 AM
тАО11-22-2010 10:45 AM
SAN Volumes go down during upgrade to SANiQ 9
Last Friday we upgraded our HP Lefthand P4500 Multi-Site SAN from SANiQ 8.5 to SANiQ 9.
During the upgrade which was (as instructed)performed by CMC version 9.0, we noticed that the SAN volumes went down.
Not all at the same time, but still...Not what we expected during an upgrade.
Does anyone know about a way to prevent this in future upgrades?
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тАО11-22-2010 11:19 AM
тАО11-22-2010 11:19 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
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тАО11-22-2010 12:39 PM
тАО11-22-2010 12:39 PM
Re: SAN Volumes go down during upgrade to SANiQ 9
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тАО11-22-2010 12:40 PM
тАО11-22-2010 12:40 PM
Re: SAN Volumes go down during upgrade to SANiQ 9
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тАО11-23-2010 06:30 AM
тАО11-23-2010 06:30 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
So I'm guessing you had a configuration something like this:
Site A:
Node1 (Mgr)
Node3 (Mgr)
FOM Mgr
Site B:
Node2 (Mgr)
Node4 (Mgr)
I'm assuming it performed the upgrade on one node at a time, and you lost quorum?, or did you maintain quorum, but volumes went offline?
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тАО11-23-2010 07:16 AM
тАО11-23-2010 07:16 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
Site A:
Node1 (Mgr)
Node3 (Mgr)
Node5
Node7
FOM (Mgr)
Site B:
Node2 (Mgr)
Node4 (Mgr)
Node6
Node8
Quorum should have been maintained as the FOM was available. However... As the CMC was busy with the upgrade I could not see if a Site went down and afterwards there was nothing reported about a volume/site that was down.
We only noticed this within our VMware environment.
I hope this makes the picture more clear...
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тАО11-23-2010 07:58 AM
тАО11-23-2010 07:58 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
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тАО11-23-2010 08:32 AM
тАО11-23-2010 08:32 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
beacause there is no license in one of the nodes i think that is why i dont see any iscsi connection tot he san...
but again; i am doing my own support here since HP does not call me...
if anyone can provide more details, yes please
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тАО11-24-2010 01:00 AM
тАО11-24-2010 01:00 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
What happend was that the mac adress of one node changed in the nic-bond so the key was not valid anymore and the esx hosts could make connections to the san cluster...
With support created a new key and all was backup up again after some scary moments...
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тАО11-24-2010 10:33 AM
тАО11-24-2010 10:33 AM
Re: SAN Volumes go down during upgrade to SANiQ 9
Thanks for the hint, but it the cause of your inactive volumes must be different then mine.
I checked the licences, but the licences on all 8 nodes are still OK.
Michiel