On Tue, 20 Dec 2005 17:57:30 +0000, John Hearns
<[log in to unmask]> wrote:

>
>I've set up LinuxHA and high availability NFS, and would prefer to use a
>dual-port SCSI array for this, or a SAN setup.
>Remember to mirror the lock files between the two systems also.
>
>I've used DRBD, but would advise monitoring if it is working, ie. if it
>fails on the recipinet machine the mirror will be out of sync and you
>need to restart it.

Speaking of SAN's, has anyone gotten the multipath feature in SL42 to work?
 We have an IBM blade equipped with a dual-port Qlogic controller connected
through two independent fabrics to a DS400/Adaptec array with a dual-port
controller.  fdisk -l shows two paths to every logical array, ie. each disk
shows up twice.  The instructions make it look easy (comment everything out
from /etc/multipath.conf, start up multipathd and away you go). Running
multipath -v2 -l shows nothing.  multipath -v3 shows that it sees all of the
devices but I don't know how to decipher where it is going wrong (I'd attach
the output but I'm typing this from home).  Ideas? -- Jeff