428 Performance Tuning for Content Manager
5. The next time the Resource Manager writes or deletes an object, the
information is read from the new disk or partition and placed in the volume’s
table.
6. If your volume is on a different partition, manually edit the RMVOLUMES table
to update the VOL_LOGICALNAME and VOL_MOUNTPOINT.
For example, assume that the volume that you wish to replace is defined in
the RMVOLUMES table entry with VOL_VOLUMEID=1. If your new partition
is F and this partition is labeled FDRIVE, enter:
UPDATE RMVOLUMES set VOL_LOGICALNAME='FDRIVE' where vol_volumeid=1
UPDATE RMVOLUMES set VOL_MOUNTPOINT='f:' where vol_volumeid=1
7. Start the Resource Manager.
14.9 Backup
This section covers backup of the Content Manager system.
14.9.1 Backup for Content Manager Multiplatforms
For Content Manager on Multiplatforms, it is important to back up four key
components:
The Library Server database: Use your database manager tools to facilitate
this.
The Resource Manager database: Use your database manager tools to
facilitate this.
The LBOSDATA directory on every Resource Manager.
Tivoli Storage Manager (TSM) volumes: It is important to remember to back
up any data that is migrated to TSM via Content Manager migration policies;
otherwise, you will have a single point of failure and data loss within your
system. This can be accomplished by using TSM copy storage pools, which
might be made up of tape volumes that can be stored off site.
It is not necessary to back up objects in the staging area, because all of the
objects in this directory exist elsewhere in the system, so have been backed up
already if you use the guideline above.
With these four key components, you can rebuild your Content Manager system,
even if the original server is completely destroyed.
Chapter 14. Maintenance 429
If you choose to back up only the four components listed above (as opposed to a
full system backup), you need to reinstall the Content Manager code and its
software prerequisites onto another machine, in case the original machine is
destroyed. The time taken to reinstall a system should be considered when
forming a recovery plan, and you must also make sure you have easy access to
the installation media, with the original CDs or a network drive.
If at all possible, perform full backups for each of your Content Manager servers.
A hierarchical storage management product such as TSM is ideal for this. When
choosing the type of media for backing up your system, consider the relative
speed of the media. For example, restoring a DB2 database backup that spans
multiple magnetic tapes takes much more time than restoring the same database
backup from a fiber attached storage area network (SAN).
TSM can also be used to back up database backup images and database logs.
These backups can be stored on any type of media that TSM supports; therefore,
it is possible to back up DB2 archive logs to tape volumes on TSM automatically,
reducing the amount of storage space needed on the server running DB2. DB2
can be integrated with TSM so that DB2 commands can be run as follows:
db2 backup database icmnlsdb use tsm
For information about integrating DB2 and TSM to provide this type of
functionality, refer to Backing Up DB2 Using Tivoli Storage Manager, SG24-6247.
Be sure to you back up all components of the Content Manager system together.
If you need to restore the system later, each component must be from the same
point in time.
1. Identify the LBOSDATA areas. Run the appropriate query for your operating
system: for UNIX, select vol_mountpoint from rmvolumes; for Windows,
select vol_logicalname from rmvolumes.
2. Pause the system.
3. Perform the backups. Back up:
Library Server database
Resource Manager database
LBOSDATA areas
Data stored in Tivoli Storage Manager
If possible, before backing up the database, perform db2stop/db2start to
ensure that there are no clients or services connecting to the database in
order to perform full backup. Or, for DB2 UDB V8.2 or higher, use the quiesce
command. For more information about this command, refer to IBM DB2
Universal Database Command Reference, SC09-4828.
4. Resume the system.

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