[DRBD-user] HELP ... Primary becomes StandAlone.

Lars Ellenberg Lars.Ellenberg at linbit.com
Tue Jun 20 13:18:34 CEST 2006

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

/ 2006-06-19 15:10:41 +0200
\ Regis Gras:
> I do'nt know why, but the Secondary try to become Primary, and
> then, the Primary goes in the state StandAlone.
> Now, how to do to have
> Primary/Secondary Connected ld: Consistent ?????
> I stopped drbd on the Secondary
> The Primary is still:
> cs:StandAlone st:Primary/Unknown ld:Consistent
> On the Primary, I do the command
> drbdadm connect all
> The Primary is now:
> WFConnection st:Primary/Unknown ld:Consistent
> If, now, I restart the Secondary
> The Primary becomes StandAlone
> In /var/spool/message
> Handshake successful: DRBD Network Protocol version 74
> Connection established.
> I am(P): 1:00000003:0000005f:00001370:00000005:10
> Peer(S): 1:00000003:00000060:00001367:00000005:00
> Current Primary shall become sync TARGET! Aborting to prevent data corruption.
> On the Secondary, I tried the command
> drbdadm invalidate r0
> But this command failed
> ioctl(,INVALIDATE,) failed: Operation now in progress
> Only in 'Connected' cstate possible.
> Command 'drbdsetup /dev/drbd0 invalidate' terminated with exit code 20
> drbdadm aborting
> Could somebody help me. How to do to reconnect the too computers ?

you have several options.

the most easy one would be to go to the secondary,
and wipe the drbd meta data area.
if you use external meta-data, that is
  /etc/init.d/drbd stop
  dd if=/dev/zero bs=4096 count=1 of=/dev/whatever-your-drbd-meta-data-device
  /etc/init.d/drbd start
and, on the primary, do "drbdadm connect all" again.
you'll see a Full Sync of the device then.

if you use internal meta-data, this is slightly more involved,
to get the offset right... if that is the case, please post again
with the output of "drbdadm dump", as well as "cat /proc/partitions".

: Lars Ellenberg                                  Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH            Fax +43-1-8178292-82 :
: Schoenbrunner Str. 244, A-1120 Vienna/Europe   http://www.linbit.com :
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