Virtual TapeServer 6.04.01 Operations and Administration Guide

152 | Troubleshooting
To view log files, the following commands are useful:
vi logfile
To edit and search the file
tail –f –n 35 logfile
To list the file in real-time
grep –ni string logfile
To search for a specific string
more logfile
To search a file by paging through it
SCSI converter
During normal operation, the LEDs on the SCSI converter blink every 3-5 seconds. During
backups, the activity LED is almost solidly lit.
• Is the power turned on?
• Are all of the cables secured tightly?
• Are any pins bent on any of the cables?
• Are all four ports in use?
• Is normal communication occurring while SCF is running?
Be sure to stop the tape drive in SCF on the host server and power off the SCSI converter
before disconnecting cables.
External storage or the SAN
Verify the following:
• Is the storage array powered on?
• Are the lights on?
• Are all of the cables secured tightly?
• Are any cables broken?
• Is the delink LED on? What is the color of the LED?
A green LED indicates normal operation; amber indicates failure.
If the HP StorageWorks Enterprise Virtual Array (EVA) is used for external storage, you may
see duplicate LUNs if you do not configure path failover. Refer to “Path failover” in the
installation guide for information about configuring path failover.
Software features
Check the System Status page to confirm that all virtual tape devices are listed. This ensures
that VTS is presenting each virtual tape device and indicates which devices are running.
The following sections may help you diagnose problems with various software features of
VTS.