http://itknowledgeexchange.techtarget.com/itanswers/where-is-the-problem-hba-host-cache-queue-depth-execution-throttle/ Wed, 22 May 2013 18:27:48 +0000 hourly 1 http://itknowledgeexchange.techtarget.com/itanswers/where-is-the-problem-hba-host-cache-queue-depth-execution-throttle/#comment-72783 miz Tue, 19 Jan 2010 11:26:41 +0000 #comment-72783 I understand you mention Emulex working better in your case than QLogic, but what is the disk configuration like?
Do you have a value from perfmon for parameters like:
Logical/Physical Disk: Avg. Disk sec/Transfer
Logical/Physical Disk: Avg. Disk Queue Length
Per haps you have a disk bottleneck that not even the Emulex card can resolve…

]]> http://itknowledgeexchange.techtarget.com/itanswers/where-is-the-problem-hba-host-cache-queue-depth-execution-throttle/#comment-72745 jldd Sun, 17 Jan 2010 12:18:25 +0000 #comment-72745 Thank you for responding Hater.
We have only 1 Exchange-2K7 in a cluster, Active-Passive.
We are running TMEA, which is an HDS tool that collect, continuously, PerfMon data, aggreg them in a MS-SQL analyzer server, and we can graphs many many graphs as well as making ScoreCards. In Dell testing they say they used ESE.dll file version 8.1.240.5.
I do not know the version at that customer. Is this something I need to check for the most recent version for QMH2462 in a W2K8-x64 and Exchange 2K7-SP1? Because it seems the host is “reluctant” to push I/Os… only when we set Execution Throttle to 65,000!!! Weird.

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