pc hpe 010 with 2 HDDs WD caviar green
This is my résults, tested with HDTune (free) and only 8MB bloc size.
- v8.9 = ~49 MB/s
- v9.6 = ~39 MB/s
Rate is decreasing of 20%
Note : my 2 HDD are 1T - 5400trs/mn
Is this with “Write-back cache” Enabled in IRST panel?
In Device manager > disk drivers > your Array > Properties > Policies check “Turn off Windows write-cache buffer flushing on the device” in win 7 improves performance a bit.
No, Write-back cache is off in the 2 cases. Only HDD cache are Enable.