[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [dm-devel] multipath and HSG80



bump up the multipathd verbosity at compilation time,
be sure to run it while testing,
look the daemon.log for multipath callouts on events.

regards,
cvaroqui

Selon Nicola Ranaldo <ranaldo unina it>:

> > Make sure the kernel DM event model works (with "dmsetup wait")
> > If not, revert the Mike Christie patches from the udm patchset.
>
> Ok... if i have understood...
>
> i do
> dmsetup -v wait volume1 0
> and is sleeping...
>
> sg_start /dev/sda 1
> dmsetup wakes up and shows:
>
> root m2:/# dmsetup -v wait volume1 0
> Name:              volume1
> State:             ACTIVE
> Tables present:    LIVE
> Open count:        2
> Event number:      1
> Major, minor:      254, 0
> Number of targets: 1
>
> while kern.log shows:
>
> Nov 26 12:44:56 m2 kernel: Device sdd not ready.
> Nov 26 12:44:56 m2 kernel: end_request: I/O error, dev sdd, sector 27280
>
> all right, the write operation continues its job...
>
> now i do:
> dmsetup -v wait volume1 1
> and is sleeping...
>
> sg_start /dev/sdd 1
> dmsetup wakes up and shows:
>
> root m2:/# dmsetup -v wait volume1 1
> Name:              volume1
> State:             ACTIVE
> Tables present:    LIVE
> Open count:        2
> Event number:      2
> Major, minor:      254, 0
> Number of targets: 1
>
> while kern.log shows:
> Message from syslogd m2 at Fri Nov 26 12:47:21 2004 ...
> m2 kernel: REISERFS: panic (device dm-0): journal-601, buffer write failed
> Nov 26 12:47:21 m2 kernel: Device sda not ready.
> Nov 26 12:47:21 m2 kernel: end_request: I/O error, dev sda, sector 23664
> Nov 26 12:47:21 m2 kernel: Buffer I/O error on device dm-0, logical block
> 2958
> Nov 26 12:47:21 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:47:21 m2 kernel: Buffer I/O error on device dm-0, logical block
> 2959
> Nov 26 12:47:21 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:47:21 m2 kernel: Buffer I/O error on device dm-0, logical block
> 2960
> Nov 26 12:47:21 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:47:21 m2 kernel: Buffer I/O error on device dm-0, logical block
> 2961
> Nov 26 12:47:21 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:47:21 m2 kernel: REISERFS: panic (device dm-0): journal-601,
> buffer write failed
>
> now the case when i emulate the controller failure:
> on hsg80 console i do a restart other...
>
> dmsetup wakes up showing:
>
> root m2:/# dmsetup -v wait volume 0
> Name:              volume
> State:             ACTIVE
> Tables present:    LIVE
> Open count:        2
> Event number:      1
> Major, minor:      254, 0
> Number of targets: 1
>
> while the kern.log shows:
>
> Message from syslogd m2 at Fri Nov 26 12:55:47 2004 ...
> m2 kernel: REISERFS: panic (device dm-0): journal-601, buffer write failed
> Nov 26 12:55:47 m2 kernel: Device sdd not ready.
> Nov 26 12:55:47 m2 kernel: end_request: I/O error, dev sdd, sector 39208
> Nov 26 12:55:47 m2 kernel: Device sda not ready.
> Nov 26 12:55:47 m2 kernel: end_request: I/O error, dev sda, sector 39208
> Nov 26 12:55:47 m2 kernel: Buffer I/O error on device dm-0, logical block
> 4901
> Nov 26 12:55:47 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:55:47 m2 kernel: Buffer I/O error on device dm-0, logical block
> 4902
> Nov 26 12:55:47 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:55:47 m2 kernel: Buffer I/O error on device dm-0, logical block
> 4903
> Nov 26 12:55:47 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:55:47 m2 kernel: Buffer I/O error on device dm-0, logical block
> 4904
> Nov 26 12:55:47 m2 kernel: lost page write due to I/O error on dm-0
> Nov 26 12:55:47 m2 kernel: REISERFS: panic (device dm-0): journal-601,
> buffer write failed
>
> wath's the next step?
>
> thanks
>
> Nicola Ranaldo
>
> --
> dm-devel mailing list
> dm-devel redhat com
> https://www.redhat.com/mailman/listinfo/dm-devel
>


--


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]