Hi Achim, What is the "failback" set to in your configuration file ? If it is set to "manual" then the failed path will not become active by themselves. If you want them to be automatic, I would suggest setting it to "immediate". More details can be found at http://sources.redhat.com/lvm2/wiki/MultipathUsageGuide regards, chandra On Mon, 2008-01-28 at 15:53 +0100, Achim Warnecke wrote: > > After setup of 40 vdisks, zoning of two switches, etc. and starting I/O I > did a goodpath-test with Redhat 5.1. > Everything worked fine. During running the failover test's the > dm-multipather didn't handle to re-establish > all paths correctly. > > I tried running multipathd with "-v4" option for verbose logging. And > changed the > line "daemon $DAEMON" with "daemon $DAEMON -v4" in /etc/init.d/multipathd > file > and restarted the daemon by running "/etc/init.d/multipathd restart" again. > > After that the failover worked fine, with and without the -v4 option. > In my setup this behavior is reproducible. > Could there be a connection with specifically starting the multipathd ? > > --------before teststart-------- > QL_0 (36005076801b080fb7000000000000dac) dm-16 IBM,2145 > [size=500M][features=1 queue_if_no_path][hwhandler=0] > \_ round-robin 0 [prio=100][active] > \_ 5:0:1:0 sdbu 68:128 [active][ready] > \_ 4:0:0:0 sdci 69:96 [active][ready] > \_ round-robin 0 [prio=20][enabled] > \_ 5:0:0:0 sdbg 67:160 [active][ready] > \_ 4:0:1:0 sdcw 70:64 [active][ready] > QL_10 (36005076801b080fb7000000000000db5) dm-26 IBM,2145 > [size=2.0G][features=1 queue_if_no_path][hwhandler=0] > \_ round-robin 0 [prio=100][active] > \_ 5:0:0:10 sdbq 68:64 [active][ready] > \_ 4:0:1:10 sddg 70:224 [active][ready] > \_ round-robin 0 [prio=20][enabled] > \_ 5:0:1:10 sdce 69:32 [active][ready] > \_ 4:0:0:10 sdcs 70:0 [active][ready] > [root@x455-tic-1 ~]# > > Kind regards, Achim > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel -- ---------------------------------------------------------------------- Chandra Seetharaman | Be careful what you choose.... - sekharan@xxxxxxxxxx | .......you may get it. ---------------------------------------------------------------------- -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
