drbd/multipath errors after upgrading SLES and HA SP2 to SP3

SLES High Availability Extension
1

Hello,

we have a two node HA Cluster using

  • a large multipathed (SAN) disk on each node
  • primary/primary DRBD to mirror these disk
  • cLVM, to define a clustered VG
  • xen to control VMs
  • openais and pacemaker to move the VMs from one node to another

The cluster worked fine with SLES 11 SP2
We upgraded to SP3 and still its working well.
But we get continously this two error messages:

ha1dmz:~ # tail -f /var/log/messages
Sep 23 11:28:51 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:52 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:52 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25
Sep 23 11:28:52 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:53 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:53 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25
Sep 23 11:28:53 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:54 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:54 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25
Sep 23 11:28:54 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:55 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:55 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25

Karl Roessmann

Max-Planck-Institut FKF
Postfach 800 665
70506 Stuttgart email K.Roessmann@fkf.mpg.de

2

Hello,
I solved the problem by changing /etc/multipath.conf.
To exclude the drbd devices from multipathing, I added this line:

         devnode "^drbd*"

to the blacklist in multipath.conf

Karl

[QUOTE=karo80;16473]Hello,

we have a two node HA Cluster using

  • a large multipathed (SAN) disk on each node
  • primary/primary DRBD to mirror these disk
  • cLVM, to define a clustered VG
  • xen to control VMs
  • openais and pacemaker to move the VMs from one node to another

The cluster worked fine with SLES 11 SP2
We upgraded to SP3 and still its working well.
But we get continously this two error messages:

ha1dmz:~ # tail -f /var/log/messages
Sep 23 11:28:51 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:52 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:52 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25
Sep 23 11:28:52 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:53 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:53 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25
Sep 23 11:28:53 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:54 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:54 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25
Sep 23 11:28:54 ha1dmz multipathd: drbd0: failed to get path uid
Sep 23 11:28:55 ha1dmz multipathd: drbd0: add missing path
Sep 23 11:28:55 ha1dmz multipathd: drbd0: HDIO_GETGEO failed with 25

Karl Roessmann

Max-Planck-Institut FKF
Postfach 800 665
70506 Stuttgart email K.Roessmann@fkf.mpg.de[/QUOTE]

3

Hi Karl,

thank you for sharing your results!

Regards,
Jens