Many thoughts will tell you that after you p2v or otherwise to put the single apci in hardware manager and roll back to 1 cpu. Then use the resource managers in esx/vcenter to add weighting and priorities.
I do both, usually if it's a dual cpu I leave it, but some of the performance blogs/forums out there say to roll it all back. From: Brian Desmond [mailto:[email protected]] Sent: Thursday, August 26, 2010 6:13 PM To: NT System Admin Issues Subject: RE: Decrease number of CPUs in Windows? There's no more UP/MP HAL as of Vista/2008+ Thanks, Brian Desmond [email protected] c - 312.731.3132 From: Ziots, Edward [mailto:[email protected]] Sent: Thursday, August 26, 2010 11:01 AM To: NT System Admin Issues Subject: RE: Decrease number of CPUs in Windows? I don't believe so, Spin up a test VM, upgrade the processors to (2) or more it turns to Multi Proc when you look at Processors in Device Manager, then shutdown the VM remove a processor, it will still show a Multi processor in Device manager ( It should, I haven't tested) and Windows should load. Z Edward E. Ziots CISSP, Network +, Security + Network Engineer Lifespan Organization Email:[email protected] Cell:401-639-3505 From: Jeff Bunting [mailto:[email protected]] Sent: Thursday, August 26, 2010 11:57 AM To: NT System Admin Issues Subject: Decrease number of CPUs in Windows? I'm curious, would decreasing the number of processors in a multi-processor vm cause a problem with Windows? I'm not talking about multi to uni processor changes, only multi to multi, like from 4 to 2 (or 8 to 4). I googled around a bit, but haven't found any info; most articles only discuss increasing cpus. If Windows is OK with a switch like that, how about ESX? Jeff ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
