2008/12/8 Sandy Drobic <suse-linux-e@japantest.homelinux.com>:
PaPa NoeL wrote:
Didn't have much time to test, but from RAID 0+1 and RAID 10 I have lost a lot of performances... File transfert in RAID 0+1 = 70 MO/s File transfert in RAID 10 = 116 MO/s ????
How did you measure this? What was the source and what was the target?
There must be something wrong?
If I had a real RAID card with the same disks, would the performances Rock? (I'm only using 5% of the CPUwith soft raid)
I have a 3ware controller with raid5 on 5 disks. Read performance is up to 300 mb/s, write performance only about 80-90 mb/s, typical raid5 values.
Most of the time these values are of little use, usually it is much more important to see how the storage performs for many simultaneous read/write sessions.
-- Sandy
Sorry, I made a mistake:
File transfert in RAID 0+1 = 70 MO/s File transfert in RAID 10 = 16 MO/s and NOT 116
It's mesured by using samba share transfer as it is more relevant for me as it's the main purpose of this NAS ( I know it also depends on the 2nd computer HDD). I should do another test with hdparm or dd from /dev/random. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org