This scenario demonstrates how to use the policies defined with TSM and
DRM for moving volumes offsite for disaster recovery protection and back
onsite for reuse.
- Storage pool backup and database backup processing is performed nightly
using TSM central scheduling.
- At 8 a.m. the tape administrator issues the following
command to create a list of volumes to be given to the courier:
query drmedia * wherestate=mountable
These volumes were created last night by the server storage pool backup and
database backup processing.
- The administrator ejects the volumes from the library.
- To indicate the ejected volumes that are unavailable for onsite
processing, issue the following command:
move drmedia * wherestate=mountable
This command marks the volumes unavailable to TSM.
- The administrator then packages the volumes so that they can be given to
the courier.
- The courier arrives to pick up today's backup tapes. The
administrator records that the volumes will be given to the courier by issuing
the following command:
move drmedia * wherestate=notmountable
- To generate a recovery plan file with the latest volume information, the
administrator issues the following command:
prepare
The administrator copies the recovery plan file to a diskette that will be
given to the courier.
- Several weeks ago during a scheduled server reclamation processing, copy
storage pool volume CSP01 was reclaimed and its volume status was changed to
PENDING. The volume is physically located at the offsite vault.
- Last night the PENDING window passed for volume CSP01 and its volume
status is now EMPTY. Also, a database backup series at vault has
exceeded the value specified by the SET DRMDBBACKUPEXPIREDAYS command.
The volume no longer contains valid backup data and should be returned onsite
for reuse or disposal.
- To determine if any tapes need to be returned from the vault, the
administrator generates a list with the following command:
query drmedia * wherestate=vaultretrieve
These tapes no longer have valid backup data on them. Volume CSP01,
DBTP55, and DBTP33 are included in the list.
- The administrator gives the database backup and copy storage pool tapes,
the recovery plan file diskette, and the list of volumes to be returned from
the vault to the courier.
- The courier gives the tapes that were on the previous day's return
from the vault list to the administrator. To update the state of these
tapes as returned to onsite, the administrator issues the following
command:
move drmedia * wherestate=courierretrieve
- The courier drives to the vault with today's database backup and copy
storage pool tapes, the recovery plan diskette, and the volumes to return from
the vault list.
- At 4 p.m. the tape administrator calls the vault and
verifies that today's backup database and storage pool tapes arrived and
are secure. To set the location of these volumes to VAULT, the
administrator issues the following command:
move drmedia * wherestate=courier
- The vault also tells the administrator that the volumes on today's
return from the vault list have been given to the courier. The
administrator issues the following command:
move drmedia * wherestate=vaultretrieve
This command changes the status for this volume to COURIERRETRIEVE.
- Later that week, an audit team from headquarters arrives unannounced and
asks the administrator for a copy of the disaster recovery plan for this
server. The administrator gives the auditors a copy of the recovery
plan file generated two hours earlier with up-to-date information that
includes the volumes required for recovery, their location, and the commands
required to use them to restore the server. The auditors are impressed
by the plan's timeliness and completeness.