Re: scsi reservation issue

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On Wed, 2007-10-31 at 10:44 -0500, Ryan O'Hara wrote:
> Christopher Barry wrote:
> > Greetings all,
> > 
> > I have 2 vmware esx servers, each hitting a NetApp over FS, and each
> > with 3 RHCS cluster nodes trying to mount a gfs volume.
> > 
> > All of the nodes (1,2,& 3) on esx-01 can mount the volume fine, but none
> > of the nodes in the second esx box can mount the gfs volume at all, and
> > I get the following error in dmesg:
> 
> Are you intentionally trying to use scsi reservations as a fence method? 

No. In fact I thought the scsi_reservation service may be *causing* the
issue, and disabled the service from starting on all nodes. Does this
have to be on?

> It sounds like the nodes on esx-01 are creating reservations, but the 
> nodes on the second esx box are not registering with the device and 
> therefore are unable to mount the filesystem. Creation of reservations 
> and registrations is handled by the scsi_reserve init script, which 
> should be run at startup on all nodes in the cluster. You can check to 
> see what devices a node is registered for before you mount the 
> filesystem by doing /etc/init.d/scsi_reservce status. If your nodes are 
> not registered with the device and a reservation exists then you won't 
> be able to mount.
> 
> > Lock_Harness 2.6.9-72.2 (built Apr 24 2007 12:45:38) installed
> > GFS 2.6.9-72.2 (built Apr 24 2007 12:45:54) installed
> > GFS: Trying to join cluster "lock_dlm", "kop-sds:gfs_home"
> > Lock_DLM (built Apr 24 2007 12:45:40) installed
> > GFS: fsid=kop-sds:gfs_home.2: Joined cluster. Now mounting FS...
> > GFS: fsid=kop-sds:gfs_home.2: jid=2: Trying to acquire journal lock...
> > GFS: fsid=kop-sds:gfs_home.2: jid=2: Looking at journal...
> > GFS: fsid=kop-sds:gfs_home.2: jid=2: Done
> > scsi2 (0,0,0) : reservation conflict
> > SCSI error : <2 0 0 0> return code = 0x18
> > end_request: I/O error, dev sdc, sector 523720263
> > scsi2 (0,0,0) : reservation conflict
> > SCSI error : <2 0 0 0> return code = 0x18
> > end_request: I/O error, dev sdc, sector 523720271
> > scsi2 (0,0,0) : reservation conflict
> > SCSI error : <2 0 0 0> return code = 0x18
> > end_request: I/O error, dev sdc, sector 523720279
> > GFS: fsid=kop-sds:gfs_home.2: fatal: I/O error
> > GFS: fsid=kop-sds:gfs_home.2:   block = 65464979
> > GFS: fsid=kop-sds:gfs_home.2:   function = gfs_logbh_wait
> > GFS: fsid=kop-sds:gfs_home.2:   file
> > = /builddir/build/BUILD/gfs-kernel-2.6.9-72/smp/src/gfs/dio.c, line =
> > 923
> > GFS: fsid=kop-sds:gfs_home.2:   time = 1193838678
> > GFS: fsid=kop-sds:gfs_home.2: about to withdraw from the cluster
> > GFS: fsid=kop-sds:gfs_home.2: waiting for outstanding I/O
> > GFS: fsid=kop-sds:gfs_home.2: telling LM to withdraw
> > lock_dlm: withdraw abandoned memory
> > GFS: fsid=kop-sds:gfs_home.2: withdrawn
> > GFS: fsid=kop-sds:gfs_home.2: can't get resource index inode: -5
> > 
> > 
> > Does anyone have a clue as to where I should start looking?
> > 
> > 
> > Thanks,
> > -C
> > 
> > --
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> > https://www.redhat.com/mailman/listinfo/linux-cluster
> 
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-- 
Regards,
-C

Christopher Barry
Systems Engineer, Principal
QLogic Corporation
780 Fifth Avenue, Suite 140
King of Prussia, PA   19406
o/f: 610-233-4870 / 4777
  m: 267-242-9306


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