host migration

hi team,
Scenario like this:
we have Vsphere 5.5 with multiple clusters, the cluster have multiple hosts, which is anyway common.
recently HP released a bug on few generation of Proliant server, http://kb.vmware.com/kb/2085618, this bug is not allowing migration, vmotion with the affected hosts, and unfortunately our clusters are with these affected physical machines.

New we wanted to patch these physical hosts, with very minimal impact to VM.

Problems:
So we thought we migrate VM to next host, and patch the server, and move back, but unfortunately  cannot migrate the VMs to different host due to this bug.  All the hosts in the cluster are same type of hardware, and all the hosts had same issue its not allowing migration.

So i need your advice to fix this issue with minimal impact.
GoodADAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you cannot patch the host, because of VMs issues, you will need to schedule VM downtime, and then either

1, Shutdown VM
2. Migrate VM (cold, when OFF)
3. Patch Host
4. Reboot

Patching does not take long, 15 minutes including reboot, so downtime for VMs 15-30 minutes, out of core hours.

I would not bother moving or migrating VMs.
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GoodADAuthor Commented:
can we do live migration the VM on to different host of different cluster? so that VM downtime will be zero.
what is difference b/w moving and migrating?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I didn't think you could do any vMotions e.g. Migrate when VM is ON, e.g. Live Migration?

Move/Migration when the VM is OFF, is not a vMotion.
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GoodADAuthor Commented:
we have take the downtime, i guess we dont have option to migrate
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if you right click the VM in vCenter Server, do you have a MIgrate option?

Are you using shared storage?
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GoodADAuthor Commented:
sorry gents, forget about this question, this is bug with HP and after installing the patch everything works


http://kb.vmware.com/kb/2085618
 
* RECOMMENDED * HP Agentless Management Service Offline Bundle for VMware vSphere 5.5
By downloading, you agree to the terms and conditions of the HP Software License Agreement.
Type:      Software - System Management
Version:      10.0.1 (19 Sep 2014)
Operating System(s):      VMware vSphere 5.5
Version:10.0.1 (19 Sep 2014) Fixes
Upgrade Requirement:
Recommended - HP recommends users update to this version at their earliest convenience.
________________________________________
•      Fix critical AMS issue causing inability to initiate vMotion or enable services, and reporting of HEAP Global errors when attempting to acquire memory.  Issue is documented in VMware KB http://kb.vmware.com/kb/2085618 .
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GoodADAuthor Commented:
my quick is asking for minimal downtime, and ppl are talking about process and steps to migrate and patch, nobody really understanding the downtime criteria
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