We have two Windows 2003 x64 R2 Enterprise servers in a file server cluster.\nThey're both running on HP DL360G6 servers that are about 3 months old and\nare accessing an EMC CX700 array with QLogic fiber cards. The servers are up\nto date with the Windows patches and the various HP drivers.\n\nOver the last few months, we've been seeing some of the "2021" event log\nwarnings from the "SRV" with the message "the server was unable to allocate a\nwork item 1 times in the last 60 seconds". Occasionally, it's "...2\ntimes...", but I've not seen anything higher than that. They've been fairly\nfrequent, but we've not noticed any performance issues.\n\nHowever, the last week or so we've been getting reports that the server is\n"slow". We checked the logs, and we're seeing a lot more of those warnings\n(pretty much every minute).\n\nOver this last weekend we did a failover to the other node. We're still\nseeing the warnings, but it looks like the performance is back up.\n\nI've done some searching on the net, and found some info about adjusting the\nregistry settings regarding memory, but the information I've found seems to\nbe for the 32 bit versions of Windows, not x64. Since I know the 64 bit\nversion handles the memory differently, I'm hesitent to apply settings for\nthe 32 bit memory managment system.\n\nAny suggestions would be appreciated.