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07/02/2008, 21h04

> Every day.... 12:41pm, without fail the same time every time this
> happens.... my virtual server host machine (2005 R2, SP1) spikes the
> vssrvc.exe virtual server service to 99%.
>
> Some days it takes an hour and half to recover, some days more, some
> days less. Today it was only 20 minutes.
>
> I either have to wait it out or hard boot the server to make it give
> up doing whatever is spiking the service.
>
> I'm hosting 20 vms, of which 12 are actually active, the ohters turned
> off. Those 12 are runing Windows XP Pro, are being accessed through
> remote desktop connections at random times of the days. Each 12 run
> the same basic applications. There are no processes that should be
> running on those machines as the applications are simple visual fox
> pro client applications.
>
> I've turned off our inhouse audit system. I've added exceptions to
> our McAfee scannign to not include the services required for virtual
> server to run, I've added the exception on the host server to not
> allow McAfee to scan the drive where the virtual disks live.
>
> I've set windows updates to "download but notify me."
>
> Has anyone seen this before? Any ideas what could be causing this
> problem? It's been happening for over a month now. Logs don't show
> anything, watching hte task manager during the downtime doesn't show
> anything except that the virtual server service is spiking.
>
> Please, someone .
>
> Thanks!!!

I am experiencing the same phenomenon. I have two Dell PE2950's that are serving as MS Virtual Server 2005 hosts. Each server has 4 VMs which share the host CPUs equally.

At 12:01PM each day the CPU of the host gradually climbs to about 90% - 95% for approximately 5-7 minutes. The VM CPUs are also affected during this time similarly. The process causing this issue is the VSSRVC.EXE. I know this service is the Virtual Server Service but other than that I'm not sure why it is firing off at noon each day.

Any info in regards to this issue would be greatly appreciated.

Thanks,

max

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07/02/2008, 21h04	#1
Max Messages: n/a Hébergeur:	RE: VSSRVC.exe spikes CPU.... why? > Every day.... 12:41pm, without fail the same time every time this > happens.... my virtual server host machine (2005 R2, SP1) spikes the > vssrvc.exe virtual server service to 99%. > > Some days it takes an hour and half to recover, some days more, some > days less. Today it was only 20 minutes. > > I either have to wait it out or hard boot the server to make it give > up doing whatever is spiking the service. > > I'm hosting 20 vms, of which 12 are actually active, the ohters turned > off. Those 12 are runing Windows XP Pro, are being accessed through > remote desktop connections at random times of the days. Each 12 run > the same basic applications. There are no processes that should be > running on those machines as the applications are simple visual fox > pro client applications. > > I've turned off our inhouse audit system. I've added exceptions to > our McAfee scannign to not include the services required for virtual > server to run, I've added the exception on the host server to not > allow McAfee to scan the drive where the virtual disks live. > > I've set windows updates to "download but notify me." > > Has anyone seen this before? Any ideas what could be causing this > problem? It's been happening for over a month now. Logs don't show > anything, watching hte task manager during the downtime doesn't show > anything except that the virtual server service is spiking. > > Please, someone . > > Thanks!!! I am experiencing the same phenomenon. I have two Dell PE2950's that are serving as MS Virtual Server 2005 hosts. Each server has 4 VMs which share the host CPUs equally. At 12:01PM each day the CPU of the host gradually climbs to about 90% - 95% for approximately 5-7 minutes. The VM CPUs are also affected during this time similarly. The process causing this issue is the VSSRVC.EXE. I know this service is the Virtual Server Service but other than that I'm not sure why it is firing off at noon each day. Any info in regards to this issue would be greatly appreciated. Thanks, max Posted via http://www.VirtualServerFaq.com - Brought to you by Business Information Technology Shop - http://www.bitshop.com