On Fri, Jan 21, 2011 at 3:58 PM, Ross Walker <rswwalker at gmail.com> wrote: > On Jan 21, 2011, at 6:41 PM, Edward Morbius <dredmorbius at gmail.com> wrote: > > We've been wrestling with this for ... rather longer than I'd care to > admit. > > Host / initiator systems are a number of real and virtualized CentOS 5.5 > boxes. Storage arrays / targets are Dell MD3220i storage arrays. > > ... > > > Once this is installed you need to setup dm-multipath, look for > multipathd.conf in /etc, get the product id and vendor id from dmesg after > making an initial connection via open-iscsi and use that in the mutipath > config. Your going to need to use path utility 'rdac' in the config instead > of tur. > > Google is your friend here. > > -Ross > > > _______________________________________________ > CentOS mailing list > CentOS at centos.or <CentOS at centos.org> /etc/multipath.conf appears to be appropriately configured (we'd installed the MDSM host components): ------------------------------------------------------------------------ device { vendor "DELL" product "MD32xxi" path_grouping_policy group_by_prio prio rdac polling_interval 5 path_checker rdac path_selector "round-robin 0" hardware_handler "1 rdac" failback immediate features "2 pg_init_retries 50" no_path_retry 30 rr_min_io 100 prio_callout "/sbin/mpath_prio_rdac /dev/%n" } device { vendor "DELL" product "MD32xx" path_grouping_policy group_by_prio prio rdac polling_interval 5 path_checker rdac path_selector "round-robin 0" hardware_handler "1 rdac" failback immediate features "2 pg_init_retries 50" no_path_retry 30 rr_min_io 100 prio_callout "/sbin/mpath_prio_rdac /dev/%n" } } ------------------------------------------------------------------------ -- Dr. Ed Morbius Chief Scientist Krell Power Systems Unlimited -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110121/efcb4750/attachment-0005.html>