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6 Posts
0
30345
September 12th, 2011 20:00
array settings on Perc H700 for SSD's
Got a new R710 with 4x 50GB SSD's. I had to blow away the RAID array and start again from scratch. What settings should I use for optimal speed when using SSD's. When the server first arrived I installed Windows 2008 Server R1 and performed a hard disk benchmark with HDTune and was getting results of around 550MB/s maximum. After recreating the array I am now only getting around 200MB/s maximum with HDTune. The settings I chose for the new array are
Read policy No Read Ahead
Write Policy Write back
Stripe Element size 64KB
I stupidly didn't look to see what the factory defaults were when the system arrived, what settings should I go with to get the results back up to the 550MB/s range I experienced in the beginning.
thanks
Chris
crizz11
6 Posts
1
September 12th, 2011 21:00
Oh didn't realise you could do a "Change Policy" on the fly through Server manager. Changed the Read Policy to Read Ahead from No Read Ahead and HDTune results are back up to 550MB/s results.