On 1/5/2010 4:44 PM, Matt wrote:
> 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.
--
Les Mikesell
lesmikesell@xxxxxxxxx
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