dm mpath: rdac
authorChandra Seetharaman <sekharan@us.ibm.com>
Thu, 12 Jul 2007 16:30:05 +0000 (17:30 +0100)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Thu, 12 Jul 2007 22:01:23 +0000 (15:01 -0700)
commitdd172d72addefd89795e819cc2cc3eb1b9d12a7f
tree203edc569ff9b1393af5a33ed62f6ceae5c5a4c7
parentfc1ff9588a6d56258ff9576a31aa34f17757c666
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>
drivers/md/Kconfig
drivers/md/Makefile
drivers/md/dm-mpath-rdac.c [new file with mode: 0644]