Virtual TapeServer 6.04.01 Installation Guide

106 | Enabling Enterprise Integration and Migration
managed by the backup management application server according to policies set by the
backup management application administrator. The backup management application server
can migrate virtual tapes using the following methods:
• The backup management application administrator creates a backup job on the backup
management application server and schedules it to run on the backup management
application client. The backup management application server manages the entire
process and maintains a database of the backup files including a list of physical tapes to
which the data was written. The backup management application server also controls the
tape library.
If VTS deletes or erases a virtual tape, the backup management application administrator
must restore the virtual tape, when necessary. If the server requests access to a virtual
tape that was erased or deleted, the mount request is queued on VTS until the data is
recovered by the backup management application server from physical tape.
• VTS can request that the backup management application server perform a backup or
restore. This request is generated when you manually initiate a migration. This request is
issued using the backup management application command-line interface. VTS generates
the backup management application command request and sends it directly to the backup
management application server. The backup management application server then
identifies the tape to back up or restore and instructs the tape library to perform the
operation.
• A VTSPolicy command sent from the host server through EMS can initiate migration.
VTSPolicy can initiate many of the commands that are available on the backup
management application server. The command can be scheduled on the host server using
NetBatch or appended to a Tandem Advanced Command Language (TACL) backup script.
This chapter describes how to configure VTS for enterprise integration and migration. It also
includes information about adding a physical tape drive, which may be necessary for
migration. Refer to the Virtual TapeServer Operations and Administration Guide for
instructions to manually initiate migrating virtual tapes, encrypt data during migration, and
automate migration using the VTSPolicy command.