Disaster Recovery; Software Distribution - IBM TotalStorage NAS 300 User Reference

Disaster recovery

It is important to provide adequate backup for key IBM Director Management Server
files for restoration purposes. It is recommended that you regularly back up the IBM
Director Management Server so that you can recover it in the event of a server
disaster. You need to save customizations that you make to the IBM Director,
including event action-plans, schedules, thresholds, and so on. Several commands
are provided with IBM Director to accomplish this task:
twgsave
twgrestore
twgreset

Software distribution

The Software Distribution task enables you to import and silently distribute
predefined software distribution packages to an IBM Director Client system. These
packages are prepared by IBM for IBM NAS products and include software fixes
and release updates only. This includes upgrading the IBM Director client itself.
The basic delivery is a single file package that is signed with a unique IBM NAS
key. Only IBM can create the signed packages that can be used by the IBM
Director Software Distribution tool.
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NAS Gateway 300 User's Reference
This command saves the complete settings to a directory named
Director.save.#, where # shows the number of backups (for example, the
third backup of the server will be saved in directory Director.save.3). You
must stop the IBM Director Management Server service to execute this
command. The command supports the following options:
twgsave -s
where the optional parameter -s specifies that software distribution
packages not be saved. This helps reduce the size of the backup files.
This command restores the saved data from an IBM Director Management
Server. Do not attempt to use this restore feature to replicate an IBM
Director Server. The command supports the following options:
twgrestore -t directory
where the optional parameter -t specifies that the data is restored, but
server ID and system name is not restored, and directory is where the
saved data resides. IBM Director Management Server cannot be running
when this command is issued.
This command resets the Director Server system to the status after
installing. You can use it if you want to clear all tables in the database and
erase the system ID files. This command can be helpful to make sure that
after a restore only the data from the saved directory will be in the Director
System. The command supports the following options:
twgreset -d -i
Where -d means to clear the tables in the database, and -i means to erase
the unique identification files for the system. You can save and restore data
only when the Director Support Program and service are stopped. Agents
running on IBM NAS appliances do not need to be explicitly backed up
because the NAS recovery CD-ROM provides this feature. Applying the
Recovery CD-ROM will reinstall the IBM Director Agent.