Virtual TapeServer 6.04.02 Operations and Administration Guide

20 | Modifying Virtual Tape Drives
• For NonStop Integrity (NS) and BladeSystem servers
Up to four tape devices are supported per port, therefore you can assign values 0–3 to
the LUN. 0 is typically assigned to the LUN for the first tape device, 1 is typically
assigned for the second tape device, 2 for the third, and 3 for the fourth.
• UNIX servers
In general, set the LUN to any value between 0 and 7. Begin with 0 and increment the
LUN for each additional VTD that is added on a bus. The backup management
application determines the number. Refer to backup management application
documentation and host server to determine the LUN.
11. In the Serial Number field, specify the serial number of the VTD. You can specify up to
10 alphanumeric characters. This string is presented to the host and should be unique
(across all VTS servers and VTDs in the environment). If you do not specify a serial
number, it is automatically generated.
12. Click Submit.
It is recommended that you back up the VTS database after modifying the VTS configuration.
See
Backing Up the VTS Server on page 15 for more information.