Virtual TapeServer 6.04.01 Installation Guide

Configuring and Validating Virtual Tape Drives

After Virtual TapeServer (VTS) is deployed, you must create virtual tape drives (often

referred to as VTDs). Up to 32 virtual tape drives are supported per VTS server. Then, you

must configure the virtual tape connections in VTS, which define connections between the

hosts and virtual tape drives in your environment. You can then validate that the host

server(s) in the environment can back up data to all virtual tape drives configured in VTS.

Adding a virtual tape drive

The following table describes the properties that you must set when defining a virtual tape

drives. For each property, this table provides a description and whether each property is

presented to the host server when the virtual tape drive responds to a host’s query:

Property Description

Presented

to Host?

Bus ID The ID of the bus on the VTS server to which the host is

connected. This ID is not presented directly to the host; the

host will see this bus numbered according to its numbering

scheme. If the connection is over Fibre Channel, the bus ID

is associated with a port WWN that is used by the host to

identify the VTS server. If the connection is over SCSI, the

bus ID on the VTS server has no special significance to the

host.

Indirectly

Target ID With SCSI, this is the SCSI ID on which the virtual tape

drive responds. This ID is not presented to the host if the

connection is over Fibre Channel. To avoid confusion, this

ID should be set to 0.

Yes, for

SCSI only

Logical unit

number (LUN)

The sub-ID on the bus. This ID is used by the host for SCSI

and Fibre Channel connections.

Yes

Initiator ID The SCSI ID of the host. This ID has no significance if the

bus is in target mode and, in this case, this ID should be set

to 7.

Yes

Name A user-friendly name for the virtual tape drive. Yes

Media type The type of tape drive that the virtual tape drive emulates. Yes