On Thu, Nov 30, 2006 at 03:28:12PM -0700, Wayne Cass wrote:
> DM-MP cannot be run on either the root or boot device
>
>
> I am booting from a SAN. Configuration:
>
> LUN 1
> /boot
> /
> /var
> /swap
>
>
> Question: Can I just blacklist "/" and "/boot" ?
>
> How do you do it? I am using a HP xp-1024 SAN.
There is no easy way to blacklist devices by their e2label filesystem label,
if that's what you mean. You can blacklist the devices that "/" and "/boot" are
on by adding something the following to your /etc/multipath.conf
blacklist {
...
wwid <wwid_for_"/">
wwid <wwid_for_"/boot">
}
You can get the WWIDs for the device by running
# /sbin/scsi_id -g -u -s /block/<devname>
e.g.
[root@cypher-01 ~]# /sbin/scsi_id -g -u -s /block/sda
3600d02300069c9ce09d41c72a4235e00
3600d02300069c9ce09d41c72a4235e00 is the WWID.
Also, multipath can only operate on entire devices. There is no way to blacklist
just a partition of a device.
>
>
> thanks
>
>
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