[DRBD-user] DRBD split brain(first time reboot only)--2

wang xuchen ben.wxc at gmail.com
Mon Apr 11 23:44:54 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hi All,

Continue from my last posting,

This is what syslog looks like when I do reboot after first time split brain
been resolved manually. Apparently, no split brain takes place.

Apr 11 17:29:39 f33 kernel: block drbd1: Starting worker thread (from
cqueue/10 [357])

Apr 11 17:29:39 f33 kernel: block drbd1: disk( Diskless -> Attaching )

Apr 11 17:29:39 f33 kernel: block drbd1: Found 64 transactions (64 active
extents) in activity log.

Apr 11 17:29:39 f33 kernel: block drbd1: Method to ensure write ordering:
barrier

Apr 11 17:29:39 f33 kernel: block drbd1: max_segment_size ( = BIO size ) =
65536

Apr 11 17:29:39 f33 kernel: block drbd1: drbd_bm_resize called with capacity
== 25164984

Apr 11 17:29:39 f33 kernel: block drbd1: resync bitmap: bits=3145623
words=49151

Apr 11 17:29:39 f33 kernel: block drbd1: size = 12 GB (12582492 KB)

Apr 11 17:29:39 f33 kernel: block drbd1: recounting of set bits took
additional 0 jiffies

Apr 11 17:29:39 f33 kernel: block drbd1: 0 KB (0 bits) marked out-of-sync by
on disk bit-map.

Apr 11 17:29:39 f33 kernel: block drbd1: disk( Attaching -> UpToDate )

Apr 11 17:29:39 f33 kernel: block drbd1: conn( StandAlone -> Unconnected )

Apr 11 17:29:39 f33 kernel: block drbd1: Starting receiver thread (from
drbd1_worker [4276])

Apr 11 17:29:39 f33 kernel: block drbd1: receiver (re)started

Apr 11 17:29:39 f33 kernel: block drbd1: conn( Unconnected -> WFConnection )

Apr 11 17:29:39 f33 kernel: block drbd1: Handshake successful: Agreed
network protocol version 95

Apr 11 17:29:39 f33 kernel: block drbd1: conn( WFConnection ->
WFReportParams )

Apr 11 17:29:39 f33 kernel: block drbd1: Starting asender thread (from
drbd1_receiver [4355])

Apr 11 17:29:39 f33 kernel: block drbd1: data-integrity-alg: <not-used>

Apr 11 17:29:39 f33 kernel: block drbd1: max_segment_size ( = BIO size ) =
65536

Apr 11 17:29:39 f33 kernel: block drbd1: drbd_sync_handshake:

Apr 11 17:29:39 f33 kernel: block drbd1: self
3F0E29557C6ED2F0:0000000000000000:8A096CBB34E497DF:1CFAD5F294AA47EF bits:0
flags:0

Apr 11 17:29:39 f33 kernel: block drbd1: peer
4EAB1AC37FF46C69:3F0E29557C6ED2F1:8A096CBB34E497DF:1CFAD5F294AA47EF bits:4
flags:0

Apr 11 17:29:39 f33 kernel: block drbd1: uuid_compare()=-1 by rule 50

Apr 11 17:29:39 f33 kernel: block drbd1: peer( Unknown -> Primary ) conn(
WFReportParams -> WFBitMapT ) pdsk( DUnknown -> UpToDate )

Apr 11 17:29:39 f33 kernel: block drbd1: role( Secondary -> Primary )

Apr 11 17:29:40 f33 kernel: block drbd1: conn( WFBitMapT -> WFSyncUUID )

Apr 11 17:29:40 f33 kernel: block drbd1: helper command: /sbin/drbdadm
before-resync-target minor-1

Apr 11 17:29:40 f33 kernel: block drbd1: helper command: /sbin/drbdadm
before-resync-target minor-1 exit code 0 (0x0)

Apr 11 17:29:40 f33 kernel: block drbd1: conn( WFSyncUUID -> SyncTarget )
disk( UpToDate -> Inconsistent )

Apr 11 17:29:40 f33 kernel: block drbd1: Began resync as SyncTarget (will
sync 16 KB [4 bits set]).

Apr 11 17:29:40 f33 kernel: block drbd1: Resync done (total 1 sec; paused 0
sec; 16 K/sec)

Apr 11 17:29:40 f33 kernel: block drbd1: conn( SyncTarget -> Connected )
disk( Inconsistent -> UpToDate )

Apr 11 17:29:40 f33 kernel: block drbd1: helper command: /sbin/drbdadm
after-resync-target minor-1

Apr 11 17:29:40 f33 kernel: block drbd1: helper command: /sbin/drbdadm
after-resync-target minor-1 exit code 0 (0x0)
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