Currently we're having an performance problem with our ESX 4.1 environment.
Situation:
Vmware 4.1.0 build number 348481
Vmware luns are configured with a 1MB blocksize.
Hosts:
3x Dell R710
Switches:
Dell powerconnect 6224
Jumbo frames enabled
Flowcontrol enabled
SAN:
2x Dell Equillogic 6000XV ( 16x 600GB SAS)
Here is a configuration screenshot of the vswitch.
I Installed an Win2008R2 Guest)booting from the SAN, and started testing the performance
The write speeds are pretty consistent(could be better because the ESX host is connected with 4x 1Gbit nics), but the reads are very fluctuating, and are way behind the write speeds.
If there is more info needed i will post as quick as i can.