Posted by: Anonymous
on February 22, 2008 04:19 PM
To all who want a HOWTO: Google "mdadm raid" and you'll find all you need. mdadm is a pretty simple tool and you can find lots of examples of usage.
Yes, you can do multiple software RAIDs on one system. I've had RAID 0 and RAID 1 running side-by-side. I've also had RAID 5 running with mdadm (with an old Adaptec SCSI card - not a RAID card). Heck, if you've got 2 SATA ports and 2 IDE ports (4 drives), you can mix/match RAID pretty easily. Drives are cheap. If you've got a newer board with up to 6 SATA ports, RAID 5 becomes a very attractive option. The only problem is that you can only boot from RAID 0 or 1, not 5.
I've done this with SATA, IDE, SCSI. mdadm doesn't really care - it just wants disks. Feed me, Seymour!
My favorite part of this is running RAID 0 on 2 SATA 7200rpm/8MB buffer drives with those FPS games that have huge levels - they used to take forever to load and now they EASILY load about 2x faster (as you'd expect). Still sucks on a LAN game when I have to wait for everyone else to finish loading, though. >:)