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10.0

VMWare ESXi 3.5 u4 suffering slow performance in iSCSI RAID-5 of 15k rpm SAS SAN

Asked by jjoz in VMware, Virtualization, Windows 2003 Server

Tags: SAS, SAN, ESXi, iSCSI, VMWare

Hi All,

I'm suffering very slow performance in using my VM deployed on the iSCSI SAN-VMFS datastore, the following attachment shows the deployment diagram which i believe already according to the best practice around the net by segregating the network from SAN into the server.

However, after reading the quoted article, it seems that no matter how fast the disk is, using SAN
in a VMWare environment it will always be slow around 160 MBps :-|

This usually means that customers find
that for a single iSCSI target (and however many LUNs that may be
behind that target 1 or more), they cant drive more than 120-160MBps.

any idea or comments please ?

View the Solution FREE for 30 Days

         
             http://virtualgeek.typepad.com/virtual_geek/2009/01/a-multivendor-post-to-help-our-mutual-iscsi-customers-using-vmware.html

Attachments:

Deployment.jpg (64 KB) (File Type Details)

iSCSI SAN Network diagram

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VMWare ESXi 3.5 u4 suffering slow performance in iSCSI RAID-5 of 15k rpm SAS SAN

Asked by jjoz in VMware, Virtualization, Windows 2003 Server

Tags: SAS, SAN, ESXi, iSCSI, VMWare

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