Need help adding FC luns

[Eugene Vilensky]

On Mon, Jan 3, 2011 at 7:18 PM, Matty Sarro <msarro at gmail.com> wrote:

> I have configured dm-multipath (using:
> http://willsnotes.wordpress.com/2010/10/13/linux-rhel-5-configuring-multipathing-with-dm-multipath/).
> However nothing is showing up at all. I have rebooted numerous times,
> and nothing.
>
> fdisk -l doesn't show anything except the internal disks. Can anyone
> help give me an idea of how to proceed? Some help would be greatly
> appreciated.

Is your HBA correctly negotiating between target and initiator at the
correct speed?  Are your initiator groups correctly set up on array?
Before setting up dm-multipath, your host has to see the disks (or
paths).  What does dmesg show on startup for any /dev/sc devices?