https://community.hpe.com/t5/disk-enclosures/msa-1000-average-queue-depth/m-p/4666563#M35556 Hi,<BR /><BR />We are experiencing slow MSA performance. I've ran the performance monitor for one minute (see attachment).<BR /><BR />Our MSA 1000 consists of two cabinets (14x 300GB and 14x 150GB), redundant controller and redundant 8 port SAN switch.<BR /><BR />The MSA1000 is connected to an ESX cluster consisting of two vSphere hosts. Their VMs are running SQL, which are going slowly.<BR /><BR />I'm not a storage specialist, but according to the output, the MSA is busy 95,6% of the time just performing read and write actions. I guess this is way to high.<BR /><BR />The command latency is 4.66ms.. Is this normal?<BR /><BR />There is an AvQDep of more than 300.000 for LUN0. I don't know what this means exactly and what a normal value should be. But if this is the same like the Windows Perfmon queue depth I can imagine that this is a huge queue. What are normal values here?<BR /><BR />Thanks for your help. Tue, 27 Jul 2010 11:45:15 GMT 2044418Puts 2010-07-27T11:45:15Z https://community.hpe.com/t5/disk-enclosures/msa-1000-average-queue-depth/m-p/4666563#M35556 Hi,<BR /><BR />We are experiencing slow MSA performance. I've ran the performance monitor for one minute (see attachment).<BR /><BR />Our MSA 1000 consists of two cabinets (14x 300GB and 14x 150GB), redundant controller and redundant 8 port SAN switch.<BR /><BR />The MSA1000 is connected to an ESX cluster consisting of two vSphere hosts. Their VMs are running SQL, which are going slowly.<BR /><BR />I'm not a storage specialist, but according to the output, the MSA is busy 95,6% of the time just performing read and write actions. I guess this is way to high.<BR /><BR />The command latency is 4.66ms.. Is this normal?<BR /><BR />There is an AvQDep of more than 300.000 for LUN0. I don't know what this means exactly and what a normal value should be. But if this is the same like the Windows Perfmon queue depth I can imagine that this is a huge queue. What are normal values here?<BR /><BR />Thanks for your help. Tue, 27 Jul 2010 11:45:15 GMT https://community.hpe.com/t5/disk-enclosures/msa-1000-average-queue-depth/m-p/4666563#M35556 2044418Puts 2010-07-27T11:45:15Z