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From "Musayev, Ilya" <imusa...@webmd.net>
Subject RE: [VMWARE] Host Maintenance Mode - Slow due to serial vmotion operations
Date Fri, 15 Mar 2013 18:11:21 GMT
"In essence, we need to sync up VMware better - something like, when an out of band vMotion
happens, we need to know it faster/asynchronously to enable CS to get the up-to-date resource
situation:" - this sort of mentions faster updates, but it does not mention concurrent vmotion
operations.

> -----Original Message-----
> From: Musayev, Ilya [mailto:imusayev@webmd.net]
> Sent: Friday, March 15, 2013 2:07 PM
> To: cloudstack-dev@incubator.apache.org
> Subject: [VMWARE] Host Maintenance Mode - Slow due to serial vmotion
> operations
> 
> I noticed an issue on ACS4.0 where when you place a host into maintenance
> mode, VMs are evacuated one at a time. The next job vmotion job kicks only
> after the previous completed.
> 
> This can take an *hour* or more if you have a large number of VMs (in my
> case 40 VMs) on each hypervisor  - to get into maintenance mode.
> 
> Does anyone know if this is going to be addressed in 4.1 or 4.2?
> 
> Looked at CS-669:
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/VMWare+Enhan
> cements+-+Support+for+DRS+and+VM+HA
> 
> Its unclear if this is being addressed.


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