I just installed CentOS 5.4 64 bit release on a 1.9ghz CPU with 8gB of
RAM. It has 2 Western Digital 1.5TB SATA2 drives in RAID1.
[root@server ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md2 1.4T 1.4G 1.3T 1% /
/dev/md0 99M 19M 76M 20% /boot
tmpfs 4.0G 0 4.0G 0% /dev/shm
[root@server ~]#
Its barebones right now. Nothing really running. I intended to move
our current email server over to it eventually. The thing is slow as
mud due to disk I/O though. I have no idea whats going on.
Here is a bit of iostat -x output.
[root@server ~]# iostat -x
Linux 2.6.18-164.9.1.el5 (server.x.us) 01/05/2010
avg-cpu: %user %nice %system %iowait %steal %idle
0.13 0.10 0.03 38.23 0.00 61.51
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz
avgqu-sz await svctm %util
sda 0.18 0.33 0.04 0.20 27.77 4.22 132.30
3.70 15239.91 2560.21 61.91
sda1 0.00 0.00 0.00 0.00 0.34 0.00 654.72
0.01 12358.84 3704.24 0.19
sda2 0.18 0.00 0.04 0.00 27.30 0.00 742.93
0.30 8065.37 1930.35 7.09
sda3 0.00 0.33 0.01 0.20 0.14 4.22 21.29
3.40 16537.41 3008.03 61.52
sdb 0.19 0.33 0.06 0.20 28.39 4.22 126.29
2.51 9676.49 862.49 22.27
sdb1 0.00 0.00 0.00 0.00 0.34 0.00 606.29
0.00 2202.03 643.13 0.04
sdb2 0.18 0.00 0.04 0.00 27.30 0.00 724.25
0.10 2579.45 745.76 2.81
sdb3 0.01 0.33 0.02 0.20 0.75 4.22 22.61
2.41 10913.16 988.40 21.74
md2 0.00 0.00 0.04 0.48 0.89 3.87 9.04
0.00 0.00 0.00 0.00
md1 0.00 0.00 0.00 0.00 0.00 0.00 8.00
0.00 0.00 0.00 0.00
md0 0.00 0.00 0.00 0.00 0.00 0.00 7.20
0.00 0.00 0.00 0.00
Does anyone have an idea what I have wrong here? This is my first
software RAID install. Built a number of Centos servers without RAID
and they have all worked fine.
Matt
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