i performed failover on a datamover without any file systems the other day, it took under one minute for standby datamover to completely take over. You don't need to unmount NFS exports, they will "pause" until the NFS server is available again.
yes, just need to make sure NFS settings on ESX and VM disk time-outs are set properly. I always keep my VMs running on NFS export from Celerra/VNX during VNX File OE upgrades (which fails-over / fails back datamovers). If you search on PowerLink on Google ..there should be some best practices for deploying vSphere on NFS.
Just to mention it, if you use the VSI USM (Virtual Storage Integrator Unified Storage Management) plug-in to provision your NFS datastores, the default settings will take care of setting the relevant ESX/ESXi Advanced Software settings for you (Net.* and TCP.*). The other value is that it will mount the filesystem with the general best practice for instance of uncached/directed writes.
dynamox
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October 24th, 2012 04:00
i performed failover on a datamover without any file systems the other day, it took under one minute for standby datamover to completely take over. You don't need to unmount NFS exports, they will "pause" until the NFS server is available again.
Maillon
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October 24th, 2012 05:00
Thank you very much for your answer
It's the same for datastores (on ESX) mounted on NFS ?
Regards,
dynamox
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October 24th, 2012 06:00
yes, just need to make sure NFS settings on ESX and VM disk time-outs are set properly. I always keep my VMs running on NFS export from Celerra/VNX during VNX File OE upgrades (which fails-over / fails back datamovers). If you search on PowerLink on Google ..there should be some best practices for deploying vSphere on NFS.
dynamox
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October 24th, 2012 07:00
you bet
Maillon
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October 24th, 2012 07:00
Thank you very much Dynamox
Regards,
christopher_ime
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October 27th, 2012 23:00
Just to mention it, if you use the VSI USM (Virtual Storage Integrator Unified Storage Management) plug-in to provision your NFS datastores, the default settings will take care of setting the relevant ESX/ESXi Advanced Software settings for you (Net.* and TCP.*). The other value is that it will mount the filesystem with the general best practice for instance of uncached/directed writes.
Maillon
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October 29th, 2012 01:00
Thank you for your reply.
Regards,