[dm-devel] Clariion CX600 automatic failback support
Bernd Zeimetz
bernd at bzed.de
Fri Nov 4 08:19:06 UTC 2005
Hi,
> Looks good, except the call to extract_hwe_from_path in setup_multipath
> must be before the call to select_pgfailback.
>
We have a ton of these log messages now.
>From the last about 2 hours:
580x multipathd: 3600601f4a20c000099dc229956b0d711: switch to path group #1
714x multipathd: 3600601f4a20c000096dc229956b0d711: switch to path group #1
714x multipathd: 3600601f2a20c0000fb13caa656b0d711: switch to path group #1
45x kernel: device-mapper: dm-emc: emc_pg_init: sending switch-over command
It happens only for these 3 of 8 luns.
Kernel is 2.6.13.4, devmapper 1.01, latest multipath-tools from git, evms
2.5.3
zeus-1:/# cat /etc/multipath.conf
defaults {
failback immediate
}
Since we had a lot of trouble with our CX400 (Hardware problems, but they're
supposed to be fixed) I'm wondering what these messages mean, and if we still
have hardware/software bugs somewhere.
Any ideas?
Thanks for your help!
Bernd
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