On Wed, Apr 08, 2009 at 03:34:57PM +0100, Kelly Harding wrote: > Hi, > > My server has got debian on it currently in the following configuration: > > 250Gb boot drive with partitions for / /boot /home > 3x500Gb drives in RAID5 array, with XFS on top directly. > > Aiming to get a couple of 1Tb drives to migrate the 3x500Gb RAID5 > array to a RAID1 and use two of the 500Gb drives for thhe new boot > drive with LVM (With /boot / /home and so on on it).
so you are going to have
md0 = raid1 2 x 500Gb
md1 = raid1 2 x 1Tb
I would create 3 partitions on the 500GB drives
500M /boot (ext2 or ext3)
20G / (ext3)
REST as a LVM PV
I would raid1 these
on the 1TB, 1 partition
1TB -> raid 1 -> LVM PV
so you end up with
/boot & / on raid1 no lvm
and then 2 LVM PV 1 x 1TB and 1 x ~460GB
you can create 1 vg or 2 depending on what you want to put on there from
there create these LV's
/tmp
<swap>
/var/log/ (my personal preference, badly config syslog server bringing
down server )
/var/tmp
then carve up what ever else you need say
/home/<you>
Alex
>
> Just wondering if theres any suggestions on how best to go about
> migrating like this? not really worried too much about downtime, as
> long as data is preserved. Reasons are mostly because the 250Gb drive
> I believe could be getting close to failure (have backed up important
> data on it to another machine using xfsdump).
>
> Any suggestions gratefully recieved.
>
> Thanks,
>
> Kelly
>
>
--
Brook's Law:
Adding manpower to a late software project makes it later.
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