Virtual TapeServer 6.04.04 for NonStop Servers Operations and Administration Guide

Troubleshooting | 109
• On the Supervisory Functions page of the VTS web interface, click Stop EMS Service, and
then click Start EMS Service to restart the EMS auto-mounting service.
• Verify that the virtual tape drives are available and that the virtual tape exists and is not
in use. The requested virtual tape may be in an autoloader that is currently in use.
• From the NonStop server, enter STATUS *, USER (username) to see if the EMSDIST
process is active.
•Check /usr/local/tape/log/ems.log. Go to the bottom of the log to look for problems.
• View the Virtual Media - Mounts and Locks page. View the list of locked virtual tapes. If
you are certain that a particular virtual tape is not in use but VTS indicates that it is
locked, remove the lock here.
Virtual tape operations
If you are unable to manually mount a virtual tape, perform the following:
• Check the color of the virtual tape label. Gray indicates the virtual tape is in use by
Import/Export or is remotely mounted.
• Verify that the autoloading library containing the virtual tape is not in use.
• Verify that SecureVTS is enabled and configured properly in a cluster environment. The
mount will fail, for example, if the key server is not configured on all servers.
If virtual tapes are mounted as read-only or write failures occur, verify that licensing has not
been exceeded (for the VTD or Capacity license).
If you cannot import a physical tape, perform the following:
• Check the tape drive for power.
• Check the tape drive for tape ready indicators.
• Check the SCSI cable to the tape drive.
• Check file system Free (Pct).
If you cannot export a virtual tape or an export failed, perform the following:
• Check the tape drive for power.
• Check the tape drive for tape ready indicators.
• Check the SCSI cable to tape drive.
• Check that the tape is in the drive.
• Check the media write-protection.
If you cannot access a virtual tape because it is locked, perform the following:
• Check MEDIACOM for label in use.
• Check other VTS systems for remotely mounted virtual tapes.
• Reboot VTS to clear all local file locks.
If an autoloading pool did not recycle, verify that Autoloading or Recycle is selected on the
Pool Maintenance page. If virtual tape operations failed to an AutoCopy server, verify that
licensing has not been exceeded (for VTD or Capacity licenses).
SecureVTS and failed tape operations
If VTS attempts to perform an operation on an encrypted virtual tape, SecureVTS must be
enabled and the key server that was used to encrypt the tape must be configured on the server