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Enthusiast

slow virtual disk speeds in View 4.6 with Windows 7

Hi all,

We have the following setup

Two IBM x3650 M2 servers running ESXi 4.1 using 2 dual port QLogic iSCSI HBAs per server

The 8 total iSCSI ports are connected to an Equallogic PS6000 series array (300 GB SAS drives)

View 4.6 running on 2 virtual servers both running Windows 2008 server (also running on the same 2 ESXi servers)

Windows 7 pool of 35 linked clone desktops in non-persistent mode

We think the super-slow Windows 7 logon times are because the virtual disk is running slow. I am using the LSI SAS virtual controller that was sugggested in the Windows 7 best practices manual from VMware (I went through that manual and did all the other suggestions too).

When we run iometer we notice really slow disk access speeds (averaging around 20-30 MB/sec).

Any suggestions on where to look to find the disk bottleneck? I checked the performance monitor within the Equallogic and the 16 disks look as if though they are doing almost no work. I think it measures the performance in i/o's per second and the physical drives never go above 100 that I can tell.

Thanks,

Brian

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