PaPa NoeL wrote:
2008/12/8 Sandy Drobic
: 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
What the heck is "MO/s"?
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.
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