Re: [cobalt-users] Using RAID0 on RaQ 3i (550)

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Fri, 20 Jun 2003, Gerald Waugh wrote:
> We are configuring two RaQ3i's like yours today, we will run RAID0
> on one of them just to determine how it works.
> I will post the results!

CRAZY! On one of the RaQs we used one disk to get RAID0
then we installed another disk, which had the RaQ4 OS on it.
The thing booted off the RaQ4 (hdc) disk...

Ok, so we starte all over, both disk installed...

http://ip.add.re.ss
gave us the option of configuring for RAID0
Active Monitor says;
Your system is configured for disk striping (RAID 0) using 2 disks.  The
system is resynchronizing the informat>
70 % completed, 11 minute(s) remaining

[root /root]# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md4 : active raid0 hdc4[1] hda4[0]
      13120000 blocks 64k chunks

md1 : active raid1 hdc1[1] hda1[0]
      4095936 blocks [2/2] [UU]
      [============>........]  resync = 63.7% (2610112/4095936)
finish=3.4min sc
md2 : active raid1 hdc2[1] hda2[0]
      1536128 blocks [2/2] [UU]

md3 : active raid1 hdc3[1] hda3[0]
      524544 blocks [2/2] [UU]

[root /root]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/md1              3.9G  849M  3.0G  22% /
/dev/md2              1.5G   12M  1.4G   1% /var
none                  251M     0  250M   0% /dev/shm
/dev/md4               12G  152M   12G   2% /home

Ok, it finished. So RAID0 gives you only RAID0 on the /home
partition and RAID1 on the other partitions.

So, I guess you loose home, but save the other parts in case of
a drive failure.

2 13 GB drive gives you a 12GB /home part

Gerald
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