CentOS - Aug 2007 - Question about centos 4 or 5 install with software RAID

When doing software RAID-1 installs on reboot (just after install)
I ALWAYS get RAID device is not clear - preforming reconstruction.

Why is this? If I just installed the array should be in sync shouldnt it?
And clean?

Not that this is a big deal - it just seems odd. It does reconstruction and
life goes on.

Is something special at install time that we are only installing on one disk
of the array and after reboot it now says we are unclean and populates the
second disk in the array?

Thanks,

Jerry

Jerry Geis wrote:
> When doing software RAID-1 installs on reboot (just after install)
> I ALWAYS get RAID device is not clear - preforming reconstruction.
> 
> Why is this? If I just installed the array should be in sync shouldnt it?
> And clean?
No, the syncing could take a couple of hours, depending upon the
sizes of your arrays. This takes place during the installation.

If the syncing hasn't finished before the installation has finished,
it will have to continue after the reboot.

I don't know if it is smart enough to continue where it stopped, or
it has to start all over?

Mogens
-- 
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
Email: mk at crc.dk Homepage: http://www.crc.dk