User's Manual

HP StorageWorks File System Extender Software user guide 231
Prerequisites
Common
• On the consolidated FSE system or FSE server, Firebird SuperServer must be running.
• Processes on all hosts of the FSE implementation must be stopped.
For stopping FSE processes on a particular host, locally run the fse --stop command. Note that the
processes must be stopped on the external FSE clients first.
• Backup FSE medium that contains the desired backup image must be loaded into an FSE drive.
Since all FSE processes are stopped, to fulfill this prerequisite, you need to use the FSE tool fse_la to
load the medium into the drive. For more information, see chapter ”Troubleshooting”, section ”FSE
troubleshooting tools” on page 274.
Linux specific
• You have to be logged on to the system as root in order to perform the restore steps.
• Logical volumes on all the clients that you are going to restore must have the same names, file system
types, and sizes as they did at the time of backup. These logical volumes are fsevar, fsepart, and
fsediskbuf (the latter only on the consolidated FSE system or FSE server).
• Logical volumes fsevar, fsepart, and fsediskbuf should be mounted on the appropriate mount
points in the FSE directory structure.
For more information, see appendix ”Directory layout” on page 291.
Windows specific
• You need administrative privileges to perform the restore tasks. These privileges are granted only if you
are either locally logged to the system as Administrator (recommended) or using a remote access
software that supports logging in with the real Administrator account. The Windows native Remote
Desktop tool, for example, may be unsuitable for these tasks, since it uses a different Administrator
account when logging in remotely.
The restore process
The following steps describe FSE restore process. Steps of the process are the same on all supported
platforms:
1. According to the specified restore source, one or more backup images are copied from disk (local or
remote disk volume or share) or tape (FSE medium in the backup FSE media pool) and temporarily
stored in FSE disk buffer.
NOTE: This step may be long lasting and may take considerable amount of time if backup image
on tape is chosen as the restore source.
2. This step depends on whether restore or retrieval of backup images is requested:
• If restore is requested, the backup image file is uncompressed and contents of the archive are
extracted to the appropriate locations on the FSE server.
• If retrieval of backup images is requested, depending on the options specified in the command line,
backup image files are either preserved in FSE disk buffer or moved to the specified directory.
After the restore, you need to perform mandatory post-restore steps. For details, see section ”Post-restore
steps” on page 235.