Miguel Medalha schrieb:
what is your purpose with this Level? I'm asking because I had done some raid level tests some time ago with hardware raid controllers/systems from 3ware, sun and iscsi-raidsystems and some softwareraid setups.
The purpose of using RAID 10 is, of course, performance coupled with full redundancy.
I haven't seen significant performance differences using different levels. (I'm not comparing the controllers.)
Did you test RAID 10 also?
I am using software RAID 10 with CentOS 5.3 and I surely did see a *huge* performance increase with RAID 10 compared to RAID 1 only.
I tested 1+0 vers 0+1 vers 5 on the 3ware, the sun build in raid system and using softwareraid on an other (older) server.
On the iscsi systems and the 3ware controller I tested raid 5 vers. 6 as well.
May be I should have mentioned that.
My conclusion on my systems was:
Level 5 is the best concerning performance/capacity.
Regards,
Götz