HP StoreEver ESL G3 Tape Libraries - Manual (Page 138)

CAUTION:
As a result of restore, rescue, or revert operations, the library shuts down. You must have physical
access to the library to bring the library back up. If you are performing a restore, rescue, or revert
operation using remote access, the library will remain shut down until the library is directly powered
back on.
Types of Configuration Image Files
There are three types of configuration images that correspond to the Restore, Rescue, and Revert
commands:
• The restore image is stored on a remote file system and is created any time you use the Save
command. You might restore the library configuration, for example, if the locally saved library
configuration is lost because the compact flash memory on the Management Control Blade (MCB)
is replaced. Because of the image remote location, the Save and Restore commands are available
only through the remote client.
• The rescue image is stored locally on the library file system and is created any time you use the
Save Rescue command. You might rescue the library configuration, for example, if the library be-
comes unstable due to a configuration change and you want to roll back the library configuration
settings to a previous state. The Save Rescue and Rescue commands are available from both the
remote client and the library OCP. You also have the option to save the rescue image when you
save the remote restore image.
• The revert image is automatically created and stored locally as the first step of any restore or rescue
operation. The Revert command is available from both the remote client and the local OCP.
When to Save the Library Configuration
Even though you can choose to save the library configuration at any time, the library prompts you to
save in certain situations. Specifically, the library prompts you to save whenever you change
configuration settings in the following areas:
• User accounts
• Event notifications
• E-mail setup
Other configuration changes that the library detects cause the library to generate warning events for
the Control subsystem. This causes a warning icon to appear on the Control system status button. Be
aware that if a more serious unresolved event already exists in that status group, the warning event
is generated, but no notification is sent until the more serious problem event is resolved or closed.
CAUTION:
Changes to hardware, such as removing drives, do not prompt you to save, either by means of
messages or warning events. Therefore, it is important to save the configuration image after a hardware
configuration change.
Saving a Remote Restore Image
Use the Save command to save a library configuration restore image on a remote file system. To make
sure that the image captures all library configuration changes, save the image often.
Monitoring the library 138