
314 IBM BladeCenter JS23 and JS43 Implementation Guide
7.5 IBM i 6.1 Backup/Restore
There are two different methods to perform a backup or restore of an IBM i
partition.
One method is to use file-backed space provided as a virtual optical device.
Once the file has been created it can be written to any BSH or BCS supported
SAS tape device.
Another method is to use a virtual tape device backed by a SAS tape drive that is
virtualized by VIOS. The virtual tape drive method is new as of this writing. This
option is only supported using the TS2240 LTO 4 SAS tape drive attached to a
SAS switch module, Any other tape drive will not work. When the tape drive is
virtualized to the IBM i partition a second virtual SCSI adapter is created for the
tape drive connection.
IBM i 6.1 backup - virtual optical device
Performing an IBM i 6.1 Operating System backup is a 2-stage process on the
IBM BladeCenter JS23/JS43 blade:
1. Create a virtual media library. See section 7.5.1, “Creating a virtual media
library for backup” on page 316 for more information.
2. A standard 6.1 save command or BRMS (Backup Recovery & Media
Services) is used to perform a save on a writable optical device that contains
an optical volume. The writable optical device is a file-backed virtual optical
drive created in VIOS. The optical volume is a virtual media image, which is a
file on disk in VIOS. The file location is /var/vio/VMLibrary/filename
3. The virtual media image, containing the 6.1 save, is written out to a SAS
attached tape drive using the VIOS command backup.
Important: The virtualized DVD-ROM drive in the chassis cannot be used for
IBM i 6.1 backups, because it is not writable.
Note: As of this writing, the TS2240 LTO 4 SAS tape drive will be supported
for IBM i in the BCH and BCS. This tape drive can be virtualized to the IBM i
partition and will appear as a 3580 Model 004.
For further information about using the IBM SAS LTO tape library attached to a
BladeCenter S chassis, refer to:
http://www-03.ibm.com/systems/resources/systems_power_hardware_blades_i_on_b
lade_readme.pdf
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