vSphere 5.1 Update1 PSOD Fix Build

VMware released 5.1U1 on April 25th with Build 1065491.  There were some critical bugs identified and fixed, so if you are using 5.1U1 with Intel Processors, you may want to use build 1117900, which came out May 22nd.  This build fixes some bugs about occasional PSOD (purple screen of death) related Flex Priority in Intel processors (part of the VT featureset).  

Here is the Build KB http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2051207

Download the Build http://www.vmware.com/patchmgr/findPatch.portal?product=ESXi+(Embedded+and+Installable)&version=121

Storage IOPS Planning

 

The limit on the VNX is the Storage Processors.  Utilizing the aggressive numbers is likely to see significant impact to the workloads.

Array	Conservative	Typical	Aggressive
VNX7500	60,000	80,0000	100,000
S200 Isilon	8,000 (per node)	10,000	12,000