> > > > Does this mean that "group_by_serial" utilizes a > "default_prio_callout" program/script as well, or is there > another callout (or something totally different that I'm > missing)? > > I've verified that by writing my own "default_prio_callout" script I > can achieve what I want with both the "group_by_priority" and > "failover" policies. Once I get done testing/tweaking the script, > I'll post it in case anyone else wants it. > > I can't seem to make group_by_serial work, although I'm not sure I > understand this policy very well. It sounds like it's supposed to > make all paths that go to a particular controller (serial?) be in the > same priority group. For me, it's no different than multibus. > Probably my misunderstanding, so I'm open to any suggestions... > "/sbin/multipath -v4" will verbosely show you the path discovery phase, including the discovered serials. May be you'll understand better what happens with your hardware. Regards, -- christophe varoqui <christophe.varoqui@xxxxxxx>
