Hello, I am testing GFS. But fencing yet does not work correctly. I am using fence_scsi and have these messages in the logfile (repeating every 5 seconds): Mar 13 04:03:36 host7 fenced[7243]: fencing node "host11" Mar 13 04:03:36 host7 fenced[7243]: agent "fence_scsi" reports: version: 0.33 20070919 Unable to execute vgs. Mar 13 04:03:36 host7 fenced[7243]: fence "host11" failed I change fence_scsi to log the actual command line executed and also the return code. The command line is vgs --config 'global { locking_type = 0 }' --noheadings --separator : -o vg_attr,pv_name,pv_uuid Which returns code 1 (256 in Perl's $?) I also changed the command in fence_scsi file to use the full path (same behaviour). When executing the command line manually I get a return code of 0, but a warning shown in the terminal: [root@host7 ~]# vgs --config 'global { locking_type = 0 }' --noheadings --separator : -o vg_attr,pv_name,pv_uuid WARNING: Locking disabled. Be careful! This could corrupt your metadata. wz--n-:/dev/dm-2:NP01BE-d1Lu-qRoz-eVIX-UuCs-FuZK-fuNtr3 wz--n-:/dev/dm-6:XTu0my-wcNR-g2F3-ai2e-W0rM-UPNi-eGTDTp The devices listed here are not used for the cluster. For testing I use a simple multipath device without a volume group on top of it (/dev/mapper/mpath2p1) The version information in fence_scsi says: $FENCE_RELEASE_NAME="2.0.115"; $REDHAT_COPYRIGHT=("Copyright (C) Red Hat, Inc. 2004 All rights reserved."); $BUILD_DATE="(built Thu Nov 11 13:23:18 EST 2010)"; Someone has an idea? Best, Matthias -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster