[DRBD-user] First post regarding drbd

Andreas Kurz andreas.kurz at linbit.com
Thu Sep 10 10:40:46 CEST 2009

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

Bernie Wu wrote:
> Hi Listers,
> I am trying to test Linux-HA with DRBD.
> The active/passive test environment consists of:
> -        zVM 5.4
> -        SLES10-SP2
> -        2 nodes/guests ( lnodbbt & lnodbct )
> -        Oracle
> I have managed to setup drbd and to mount the database filesystem on lnodbbt ( active/master ).
> Now I want to bring up Oracle.  I have created a resource ORADB and am using the ocf scripts to start oracle which doesn't work.  However, I can manually run the ocf startup script and oracle comes up.
> My questions follow:
> 1.      Should I be using the LSB startup scripts instead of the ocf script ?

from the log:

oracle[28687][28819]: 2009/09/09_09:03:58 ERROR: Oracle dssd can not mount.

... looks like "startup mount" is not successful.

The ocf script should work fine ... did you explicitly define the "user"
for the oracle resource? If not give it a try.

> 2.      How do I configure drbd so that lnodbbt is the master and lnodbct is the slave ?

Add a location constraint to your cluster config eg:

<rsc_location id="prefer-lnodbbt" rsc="RG_A" node="lnodbbt" score="100"/>

> 3.      Do I have to set up any constraints for the ORADB resource so that it only starts up on the guest that has the /dbms mounted and what would the constraints be ?

No ... you defined a resource group which sets the needed constraints


> Attached is my /etc/drbd.conf and etc/ha.d/ha.cf and ha-logs from lnodbbt ( the active/master ) guest.
> Any help or pointers would be much appreciated.
> Bernie
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: Andreas Kurz					
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