>> 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.
>>
> [...]
>>
>> 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.
>
> Did you just create the RAIDs? It will something that size a few hours to
> complete the initial sync. Try 'cat /proc/mdstat' to see when the sync
> completes. Until then, expect to have head contention with anything else
> that might be trying to use the drives.
Here is what I got there. Md1 is swap I beleive:
[root@server ~]# uptime
17:20:54 up 7 days, 3:26, 2 users, load average: 3.41, 2.93, 2.89
[root@server ~]#
[root@server ~]#
[root@server ~]# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdb1[1] sda1[0]
104320 blocks [2/2] [UU]
md1 : active raid1 sdb2[1] sda2[0]
8385856 blocks [2/2] [UU]
md2 : active raid1 sdb3[1] sda3[0]
1456645568 blocks [2/2] [UU]
unused devices: <none>
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