tree 203edc569ff9b1393af5a33ed62f6ceae5c5a4c7
parent fc1ff9588a6d56258ff9576a31aa34f17757c666
author Chandra Seetharaman <sekharan@us.ibm.com> 1184257805 +0100
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1184277683 -0700

dm mpath: rdac

This patch supports LSI/Engenio devices in RDAC mode. Like dm-emc
it requires userspace support. In your multipath.conf file you must have:

path_checker            rdac
hardware_handler        "1 rdac"
prio_callout		"/sbin/mpath_prio_tpc /dev/%n"

And you also then must have a updated multipath tools release which
has rdac support.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>