All,
http://seer.entsupport.symantec.com/docs/317378.htm http://blogs.technet.com/andym/archive/2008/12/04/powerpath-5-2-and-mpio -causing-npp-leak.aspx The culprit in EMC land is the 5.2 and 5.2 SP1 PowerPath Drivers ( MPIO.sys of 1.22.3790.2358) and the EMCMPIO.sys of 5.2.1.6 (5.2 SP1) The fix: Move up to EMC multipath drivers Version 5.3 which will load Microsoft's MPIO.sys updated to 1.23.3790.2451 which seems for the time being to address the Non-Page Memory Pool leak, this was driving one of my Exchange 2003 SP2 2-node clusters insane over the last few months, it was discovered if the NON-Paged Memory counter you see on the Task manager gets about 106-108MB for a X86 32bit system, the http service for the Exchange Cluster will fail, and cause the Exchange group to fail because the resource is marked to affect the group. HTH with some folks out there, Z Edward Ziots Network Engineer Lifespan Organization MCSE,MCSA,MCP+I, ME, CCA, Security +, Network + ezi...@lifespan.org Phone:401-639-3505 ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
