Here are the recommended settings from Microsoft: (http://support.microsoft.com/kb/324446) Microsoft Recommended Optimization Settings for Terminal Service MaxWorkItems = 8196 MaxMpxCt = 2048 MaxRawWorkItems = 512 MaxFreeConnections = 100 MinFreeConnections = 32 MaxCmds = 2048 RegistryLazyFlushInterval = 60 PoolUsageMaximum=60 PagedPoolSize=4294967295 From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Dan Dill Sent: Monday, November 15, 2010 6:11 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] SMB Current Commands and SMB tuning Hello, I've been digging into SMB tuning for our PS 4.5 Server 2003 x64 citrix farm as our farm currently doesn't have MaxMpxCt or MaxCmds set on our servers. I am confused by the results of the Redirector\Current Commands output in perfmon. That counter is defined as: "counts the number of requests to the Redirector that are currently queued for service" however the graph over time is quite flat when I could expect a queue graph to look spikey. Is that counter a combination of the outstanding SMB requests plus something else? I've got an un-tuned server that hit 57 today without any reported issues when I would have expected it to cap at 50 or start exhibiting problems at that level. Anyone know why those counters are fairly flat? Is there a better way to see if I'm hitting MaxCmds or do people just set it higher regardless? Thanks, Dan Dill |Systems Engineer | Harsch Investment Properties