[ale] Motherboard Drives First, Please!

[Sean C. McCord]

On Tue, Feb 10, 2009 at 12:53:24PM -0500, Jeff Hubbs wrote:
> Sean -
> 
> Using modules for the 3ware cards is the direction I'm heading in.  I'm 
> not booting to the 3wares in any case.
> 
> If I go the JBOD/SW-RAID route or a mixture of that plus HW RAID on just 
> one of the cards, then it seems as though it's /dev/mdX that winds up in 
> /dev/disk/by-uuid.  I'm not sure how that'll play with what I'm trying 
> to do with hardware failover, i.e., slap the drives over into a second 
> identical machine if the main machine's mobo craps it.

With both SW raid and 3Ware HW raid, that is not a problem.  The drives
contain the raid mapping and will be consistent across systems.  That
is, both raid systems already use the UUID of the disks for consistency.

--
Sean C. McCord
scmlist at cycoresys.com