Virtual TapeServer 6.04.03 Operations and Administration Guide

18 | Modifying Virtual Tape Drives
Advanced at the bottom of the Manage Connections page. See Advanced Options for Tape
Connections on page 165 for more information. Deleting a VTD is also described below.
Requires the View/Manage Configuration access right
To modify the properties of a VTD
1. Click Manage Connections on the navigation pane.
2. Log in. See Credentials on page 47 for a list of default user accounts.
3. If you have not enabled VTD licensing or if no VTD licenses remain (as indicated in the
INFORMATION section of the Manage Tape Connections page), you must enable
licensing or add a new license before you can create VTDs. See
Managing licensing on
page 116 for more information.
4. Click next to the VTD you want to modify. A dialog box is displayed indicating that
VTD operations will be interrupted if you modify the VTD.
5. Click OK to continue. The following fields are displayed:
6. In the Virtual Tape Drive field, specify a name for the VTD. This name is for use in the
interface and by EMS. It is also noted in the configuration file. The name is case-sensitive.
7. Select the media format from the Tape Type drop-down list. This property defines the
type of tape that the VTD emulates.
Note Do not select RAID; this option is provided for physical tapes only.
8. From the Bus drop-down list, select the bus ID to which the host server is connected. To
determine the bus ID, you must find the PCI slot number on the back of the VTS server
module where the SCSI or Fibre Channel cable connects from the card to the target.
Labels indicate the bus number for each port.
9. If you are editing a SCSI VTD, select the ID on which the VTD will respond from the
Target drop-down list. This is the ID that the host uses to identify its target, and the ID
typically ranges from 0–15.
Note Fibre Channel devices use LUN-based addressing. SCSI devices use target-based
addressing. For Fibre Channel devices, the LUN determines the unique address of
the device on the bus. When assigning the target ID and LUN, be sure to assign a
unique combination. For example, you cannot assign target ID 0 LUN 0 and
target ID 1 LUN 0 on the same bus; this creates a conflict. All target IDs on a bus
must be identical, and you cannot assign a LUN value more than once per bus.