Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

The vxfentsthdw utility fails when SCSI TEST UNIT
READY command fails
While running the vxfentsthdw utility, you may see a message that resembles as
follows:
Issuing SCSI TEST UNIT READY to disk reserved by other node
FAILED.
Contact the storage provider to have the hardware configuration
fixed.
The disk array does not support returning success for a SCSI TEST UNIT READY
command when another host has the disk reserved using SCSI-3 persistent
reservations. This happens with the Hitachi Data Systems 99XX arrays if bit 186
of the system mode option is not enabled.
Troubleshooting server-based I/O fencing
All CP server operations and messages are logged in the /var/VRTScps/log
directory in a detailed and easy to read format. The entries are sorted by date and
time. The logs can be used for troubleshooting purposes or to review for any
possible security issue on the system that hosts the CP server.
The following files contain logs and text files that may be useful in understanding
and troubleshooting a CP server:
■ /var/VRTScps/log/cpserver_[ABC].log
■ /var/VRTSat/vrtsat_broker.txt (Security related)
■ If the vxcpserv process fails on the CP server, then review the following
diagnostic files:
■ /var/VRTScps/diag/FFDC_CPS_pid_vxcpserv.log
■ /var/VRTScps/diag/stack_pid_vxcpserv.txt
Note: If the vxcpserv process fails on the CP server, these files are present in
addition to a core file. VCS restarts vxcpserv process automatically in such
situations.
The file /var/VRTSvcs/log/vxfen/vxfend_[ABC].log contains logs and text files
that may be useful in understanding and troubleshooting fencing-related issues
on a SFCFS cluster (client cluster) node.
Troubleshooting cluster installation
The vxfentsthdw utility fails when SCSI TEST UNIT READY command fails
454