[DRBD-user] drbd0: State change failed: Device is held open by someone

Felix Frank ff at mpexnet.de
Mon Nov 19 10:27:27 CET 2012

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

On 11/16/2012 10:00 PM, Phillips, Dan wrote:
> What is this DRBD used for? Is there a filesystem in it? Or is it used by an iSCSI target? Something else entirely?
> - I am new to DRBD so I may not fully be able to answer your question. I know we use DRBD, LVM, snapshot, HA, heartbeat. There are two SATA drives on each of two servers. I do not think they are used as an iSCSI target. We have a large database (384 million phone numbers) that is mirrored/maintained on both servers. 

Right. I'll go ahead and guess that there is a filesystem on the DRBD
and that you mount it for use by your DBMS.

Points of interest are your /etc/ha.d/ha.cf and (if applicable) the
output of "crm configure show".


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