Ubuntu
dmraid package

  1. Bug #392510
  2. Comment #11

Comment 11 for bug 392510

Revision history for this message
Danny Wood (danwood76) wrote :

What you have to understand is that DMRAID is just a driver for the bios raid setups.

When you create a RAID from the BIOS it does a RAID1 or whatever on the entire array using all the drives you select. You cant do a partial bios raid setup as this is illogical.

When you use mdadm to create a RAID on a BIOS RAID without dmraid you are effectivly corrupting the bios' RAID array as mdadm will alter the drives that the BIOS has assigned to that array.

It is much simpler to just use dmraid instead of mdadm, it will gather the raid setup from the bios without you having to do anything.