We have a number of ESX Servers connected to various iSCSI Targets and I want to do a consolidation exercise so want to get an idea of the current level of IOPS each of our servers uses.
I tried running
$start = Get-Date "2010-07-25 10:00:00" $finish = Get-Date "2010-07-26 10:00:00" $esx = Get-VMHost <ESX-hostname> get-stat -entity $esx -stat disk.numberRead.summation -start $start -finish $finish
But get the error
The metric counter "disk.numberread.summation" doesn't exist for entity "esx1.zoo.lan"
despite the documentation implying that the counter does exist.
Anyone done anything similar. Even if I can get the data on a per-VM or even per-LUN bassis that would be fine as I could just sum it up in a spreadsheet