Labeling Multipath drives

[mark]

2009/3/18 Kenny Lussier <klussier at gmail.com>

> Hi All,
>
>
> I currently have a failover cluster  with a shared  iSCSI disk. It is just
> an ext3 partition that has a disk label. If the primary box drops, the
> backup box (through the magic of clustering), knows that it needs to mount
> the disk where "LABEL=HA_DISK". However, I am soon going to be moving the
> storage to a fiber channel SAN. The boxes will each have two FC HBA's in
> them, giving them each eight total paths to the SAN volume. The problem that
> I have is that if I use e2label on the partition that ends up in
> /dev/mapper, I can't mount by label. I get an error saying "Multiple drives
> found with identical label". Does anyone know how to work around this?
>
> TIA,
> Kenny
>

Your SAN should have multi-pathing software that presents the paths on each
box as a single virtual device to the OS.  The SAN should also be cluster
aware and present all the paths to the disk to both systems
simultaneously.   What OS, brand of SAN and clustering software are you
using?

--
mark
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