18 Aug
2009
18 Aug
'09
8:20 p.m.
On Aug 18, 2009, at 2:05 PM, mcclnx mcc mcclnx@yahoo.com.tw wrote:
We have several DELL servers with MD1000 connect to it. Server will install CENTOS 5.x X86_64 version. My questions are:
- Which configuration have better performance RAID5, RAID50 or
RAID60?
RAID5 does one less IO per write as it doesn't have to write the extra parity, but RAID50 is a little worse then RAID6 because it has to calculate 2 parity blocks.
If doing RAID6 I'd probably create one large RAID6, once you get into RAID60 it's probably just as well do RAID10.
- how much performance difference?
That really depends on HW config, software config and workload.
-Ross