hi ya jon
On Sun, 8 Feb 2004, Jonathan Melhuish wrote:
> Say I've got the following files:
>
> * Some small files that I want to keep safe, eg. document backups,
> databases, etc.
> * Some big files that I don't care much about losing but need to read
> quickly, eg. video
>
> Can I use software RAID-1 (mirroring) on a partition containing the
> first type of files and RAID-0 (striping) on the other partition?
>
> The Software-RAID-HOWTO kind-of implies that you can do this by
> specifying a partition number in the |/etc/raidtab file, but the
> description refers to "devices" throughout, not "partitions".|
if you use /dev/hda and /dev/hdc...
you can get what you;re looking for
say ...
/dev/hda1 + /dev/hdc1 --> mirroring
/dev/hda2 + /dev/hdc2 --> stripping
for stripping (reading off 2 disks at the same time .. reading 2x faster)
you'd want to mirror the data first, than strip it
/dev/hda2 + /dev/hdc2 --> mirror1 ( /dev/md0 )
/dev/hde2 + /dev/hdg2 --> mirror2 ( /dev/md1)
/dev/md0 + /dev/md1 ---> stripping
count the disk spindles... you can only go as fast as the disk is
spinning .. read faster ... write would be equally slower
c ya
alvin
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
