Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi Guys,
(Sorry if multiple postings, having problems with email)
Sometime during the last few days my DRBD (8.0.3) entered a split-brain.
I am not sure what caused it, and wonder whether there are any experts
on reading logs who might be able to help me?
Starting from a good state, I requested a /sbin/reboot:
Aug 24 17:21:35 init: Switching to runlevel: 6
Aug 24 17:21:36 kernel: drbd0: disk( UpToDate -> Diskless )
Aug 24 17:21:36 kernel: drbd0: drbd_bm_resize called with capacity == 0
Aug 24 17:21:36 kernel: drbd1: State change failed: Device is held open
by someone
Aug 24 17:21:36 kernel: drbd1: state = { cs:StandAlone
st:Primary/Unknown ds:UpToDate/DUnknown r--- }
Aug 24 17:21:36 kernel: drbd1: wanted = { cs:StandAlone
st:Secondary/Unknown ds:UpToDate/DUnknown r--- }
Aug 24 17:21:36 kernel: drbd0: worker terminated
The following is the log of the reboot, after which I am 95% certain
DRBD was left in split-brain:
Aug 24 17:24:00 kernel: drbd: module not supported by Novell, setting U
taint flag.
Aug 24 17:24:00 kernel: drbd: initialised. Version: 8.0.3 (api:86/proto:86)
Aug 24 17:24:00 kernel: drbd: SVN Revision: 2881 build by root@,
2007-07-03 11:03:51
Aug 24 17:24:00 kernel: drbd: registered as block device major 147
Aug 24 17:24:00 kernel: drbd: minor_table @ 0xffff8102261223c0
Aug 24 17:24:00 kernel: drbd0: disk( Diskless -> Attaching )
Aug 24 17:24:00 kernel: drbd0: Found 6 transactions (276 active extents)
in activity log.
Aug 24 17:24:00 kernel: drbd0: max_segment_size ( = BIO size ) = 32768
Aug 24 17:24:00 kernel: drbd0: drbd_bm_resize called with capacity ==
4878499462
Aug 24 17:24:00 kernel: drbd0: resync bitmap: bits=609812433 words=9528320
Aug 24 17:24:00 kernel: drbd0: size = 2326 GB (2439249731 KB)
Aug 24 17:24:01 kernel: drbd0: reading of bitmap took 117 jiffies
Aug 24 17:24:01 kernel: drbd0: recounting of set bits took additional 34
jiffies
Aug 24 17:24:01 kernel: drbd0: 51 MB marked out-of-sync by on disk bit-map.
Aug 24 17:24:01 kernel: drbd0: disk( Attaching -> UpToDate )
Aug 24 17:24:01 kernel: drbd0: Writing meta data super block now.
Aug 24 17:24:01 kernel: drbd1: disk( Diskless -> Attaching )
Aug 24 17:24:01 kernel: drbd1: Found 6 transactions (324 active extents)
in activity log.
Aug 24 17:24:01 kernel: drbd1: max_segment_size ( = BIO size ) = 32768
Aug 24 17:24:01 kernel: drbd1: drbd_bm_resize called with capacity ==
4878499462
Aug 24 17:24:01 kernel: drbd1: resync bitmap: bits=609812433 words=9528320
Aug 24 17:24:01 kernel: drbd1: size = 2326 GB (2439249731 KB)
Aug 24 17:24:01 kernel: drbd1: reading of bitmap took 68 jiffies
Aug 24 17:24:01 kernel: drbd1: recounting of set bits took additional 46
jiffies
Aug 24 17:24:01 kernel: drbd1: 632 KB marked out-of-sync by on disk bit-map.
Aug 24 17:24:01 kernel: drbd1: disk( Attaching -> UpToDate )
Aug 24 17:24:01 kernel: drbd1: Writing meta data super block now.
Aug 24 17:24:01 kernel: drbd0: conn( StandAlone -> Unconnected )
Aug 24 17:24:01 kernel: drbd0: receiver (re)started
Aug 24 17:24:01 kernel: drbd0: conn( Unconnected -> WFConnection )
Aug 24 17:24:01 kernel: drbd1: conn( StandAlone -> Unconnected )
Aug 24 17:24:01 kernel: drbd1: receiver (re)started
Aug 24 17:24:01 kernel: drbd1: conn( Unconnected -> WFConnection )
Has any person any idea what might be causing this, and how to fix this?
Regards,
Ben
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