Hi Ryan, Can you check your multipath.conf file for " path_grouping_poilicy" parameter. For active/active or load balancing, it should be set to "multibus" (Default is "failover", probably thats the reason you are seeing one path as active and other as faulty)
Regards Sunil Joshi > Date: Mon, 4 May 2009 12:35:53 -0400 > From: Matty <[email protected]> > To: [email protected] > Subject: [storage-discuss] Does COMSTAR support ACTIVE/ACTIVE paths? > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1 > > Howdy, > > I have been reading through the COMSTAR admin guide: > > http://wikis.sun.com/display/OpenSolarisInfo/comstar+Administration > > and haven't been able to figure out if the COMSTAR FC target operates > in ACTIVE/ACTIVE or ACTIVE/PASSIVE mode. To see what the deal is, I > created a multipath.conf file and enabled the ports. This led to one > of the two paths to my target being reported as faulty: > > $ multipath -ll > sdc: checker msg is "readsector0 checker reports path is down" > mpath2 (3600144f02d658400000049fba1bf0001) dm-0 SUN,COMSTAR > [size=100G][features=0][hwhandler=0][rw] > \_ round-robin 0 [prio=1][enabled] > ?\_ 1:0:0:0 sdc 8:32 ?[active][faulty] > ?\_ 0:0:0:0 sda 8:0 ? [active][ready] > > The target shows that both ports are online and the initiators are logged > in: > > $ stmfadm list-target -v > Target: wwn.10000000C93E4CEB > ? ?Operational Status: Online > ? ?Provider Name ? ? : emlxs1 > ? ?Alias ? ? ? ? ? ? : emlxs1 > ? ?Sessions ? ? ? ? ?: 1 > ? ? ? ?Initiator: wwn.2100001B320486C3 > ? ? ? ? ? ?Alias: - > ? ? ? ? ? ?Logged in since: Mon May ?4 15:31:50 2009 > Target: wwn.10000000C93E4CEA > ? ?Operational Status: Online > ? ?Provider Name ? ? : emlxs0 > ? ?Alias ? ? ? ? ? ? : emlxs0 > ? ?Sessions ? ? ? ? ?: 1 > ? ? ? ?Initiator: wwn.2101001B322486C3 > ? ? ? ? ? ?Alias: - > ? ? ? ? ? ?Logged in since: Mon May ?4 15:31:49 2009 > > So I'm not real sure if I should be using a failover configuration on > the Linux host, or trying to send requests to both targets (or > defining a TPGT group with these ports)? I would like to thank Dan for > responding to my previous post, and all the COMSTAR developers for for > doing such a kickass job wring the FC target! This stuff is pretty > badass! > > Thanks, > - Ryan > -- > http://prefetch.net > >
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