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06-19-2007 10:16 PM
06-19-2007 10:16 PM
If we have say a C-class blade running several VMs which are housed entirely on the SAN. If we then had a hardware issue which took out that Blade, could we then rezone that SAN disk to another C-Class Blade and then bring up the VM's on there thus restoring the system availability before the hardware is repaired?
Is this possible and how easy would it be to "import" the VM on the replacement box from an Integrity VM point of view?
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06-20-2007 12:02 AM
06-20-2007 12:02 AM
Solutionthe Integrity Virtual Machines product needs of course an Integrity server to run (in your case the BL860c).
The best idea would be to integrate the virtual machine in MC/Serviceguard, so if a host system fails, the virtual machine will start on another configured node automatically.
But also if you "manually move" the vm (config) and re-zone, re-present ... it should be possible to run (but it will likely take more time).
Hope this helps!
Regards
Torsten.
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06-21-2007 06:48 AM
06-21-2007 06:48 AM
Re: Integrity Virtual Machines
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06-21-2007 08:26 AM
06-21-2007 08:26 AM
Re: Integrity Virtual Machines
If you want automated failover you will need to use MCSG to accomplish the failover in seconds rather than minutes.
Phil
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06-21-2007 06:32 PM
06-21-2007 06:32 PM
Re: Integrity Virtual Machines
How did you configure the backing storage?
(disk/lvol/file). You need to adjust this to the other blade. Additionally you need to "import" the HPVM config.
Hope this helps!
Regards
Torsten.
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06-21-2007 06:53 PM
06-21-2007 06:53 PM
Re: Integrity Virtual Machines
Regarding Torstens comment about the backing storage, we're still in the planning stage at the moment so that hasn't been finalised. I'm guessing that using files as the backing storage would be the least recommended as it would look like it has the most overhead involved. I would imagine that we would need to import the disks into the vmhost, (vgimport if using lvols), and then when they were visible import the VM configuration. Or if the disk storage is being used then if devices have changed then vgimports may need to be run on the VM itself to pick it back up?
(We will be writing system configurations out to Ignite servers which are outside the blade environment so should have access to the info we need).
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06-21-2007 07:05 PM
06-21-2007 07:05 PM
Re: Integrity Virtual Machines
IF you are running serviceguard on the host, you need to configure the backing storage as LVM volumes. If you are running serviguard on the guest, you need to present the backing store as plain disks. In this case you need a multipath solution (e.g. autopath) running on the host.
See the manual for more information.
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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