maybe it is because the disk partion is not umounted.
Date: Sun, 10 Jan 2010 00:17:40 +0100
From: [email protected]
To: [email protected]
Subject: [DRBD-user] Installation progression - Device is held open by someone
Hello,
getting DRBD to work with MySQL was not problem. However prior to adding
heartbeat I want to get a fix on the 2 problems below:
Debian Lenny/LVM
DRBD 8.0.14
(1) State change error: Trying to set active node to passive and vice-versa
# drbdadm secondary mainvol
/dev/drbd0: State change failed: (-12) Device is held open by someone
Command 'drbdsetup /dev/drbd0 secondary' terminated with exit code 11
# drbdadm down all
/dev/drbd0: State change failed: (-12) Device is held open by someone
Command 'drbdsetup /dev/drbd0 down' terminated with exit code 11
drbdsetup exited with code 11
picked up from a forum:
# vgchange -an
Can't deactivate volume group "vg0" with 7 open logical volume(s)
I could literally tear the connection by severing the link between the nodes
and then set the active node, but there must be a smoother way.
(2) After reboot the DRBD volumes on the primary are offline/not-mounted/locked
by DRBD. Setting them primary resolves it and allows a mount -a to mount them
all. Is this the default behavior without heartbeat ??
thanks - ies
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