Hi guys,
I am trying to measure the perf' of RAID arrays to be sure of the layout
I'll use for my future set up.
Based on this article, RAID10,f2 seems to be the best set up:
https://raid.wiki.kernel.org/index.php/Performance
But if I create a RAID10,f2 array (ext4 FS) and if I compare its perf'
against a RAID1 arrays using bonnie++, I do not see any big differences.
This is the command I used:
/usr/sbin/bonnie++ -s 5000 -n 128 -r 1024 -m Jessie -d /tmp/md99/
My RAID10,f2:
# mdadm --detail /dev/md99
/dev/md99:
Version : 1.2
Creation Time : Sat May 25 23:15:46 2013
Raid Level : raid10
Array Size : 5851136 (5.58 GiB 5.99 GB)
Used Dev Size : 5851136 (5.58 GiB 5.99 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Sun May 26 00:23:12 2013
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Layout : far=2
Chunk Size : 512K
Name : debian:99 (local to host debian)
UUID :
Events : 106
Number Major Minor RaidDevice State
0 8 37 0 active sync /dev/sdc5
2 8 53 1 active sync /dev/sdd5
May be I am doing something wrong.
Jean-Marc <jean-m...@6jf.be>
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