Virtual TapeServer 6.04.02 Operations and Administration Guide

156 | Maintaining GFS for VTS
Troubleshooting
The following topics describe common GFS problems and their solutions.
VTS server fails to join the cluster after reboot
If a VTS server fails to join the GFS cluster after it reboots, complete these troubleshooting
steps:
1. Check your SAN to make sure the port is enabled. Below is a MSA/Brocade example.
Make sure that the port is checked “Enable.”
2. Confirm the Fibre Channel port is available and confirm that the Linux operating system
sees the LUN defined for the file system by the storage array. This command will list all
SCSI devices. From the VTS server command line, enter this command:
[root@VTS001 root]# sg_map -x
Here is the output:
/dev/sg0 1 0 4 0 1 /dev/st0
/dev/sg1 1 0 5 0 1 /dev/st1
/dev/sg2 1 0 6 0 8
/dev/sg3 4 0 0 0 0 /dev/sda
/dev/sg4 4 0 0 1 0 /dev/sdb
/dev/sg5 4 0 0 2 0 /dev/sdc
/dev/sg6 4 0 0 3 0 /dev/sdd
/dev/sg7 4 0 0 4 0 /dev/sde