Feb 262012

Recently we switched over to VMware ESXi 5.0 for all our new Windows Server installations.

For my first installation I have chosen an HP ProLiant ML350 G6.
After looking up the specs and checking with VMware’s Compatibility Guide everything looked quite straight forward. After installing the machine at the client they started to complain about very very low system performance.

After doing some tests I found the problem at the I/O performance of the RAID 1. Googling around showed up a not widely known problem regarded a not installed RAID controller battery backup (BBWC). After getting the “missing” part and finishing the first loading cycle (which took about 2 hours) everything went back to normal!

Always get a BBWC for your P410i controllers when you want to use VMware ESXi

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