This section discusses the options available for restoring
backups created by TurboSTORE/iX 7x24 True-Online Backup.
When restoring a backup that was created with the sync point
at the beginning of the backup, RESTORE performs the following tasks
for each file restored:
Restores the initial file data.
Applies any before image log data that exists on the
backup.
When a 7x24 true-online backup with the sync point at the end of the backup is
restored, RESTORE performs the following tasks:
Restores the initially stored files.
Restores all new files that were added to the fileset during the
backup due to renames or builds.
Applies any changes made to files after they were written to the
media (the after image logs).
Does not restore all files that were deleted from the fileset
during the backup.
If RESTORE is unable to read the media directory information
from a media directory disk file, it asks you to mount the last
piece of media from the backup. Once it has read the media directory,
it prompts you to mount the necessary piece(s) of media for the
recovery process.
NOTE: Since the after image log data is stored at the end of the backup,
files that need to have after image log data applied is unavailable for read OR
write access, until the after image log data is applied at the end of the
backup. Once RESTORE reads and applies the after image log data for
a file, the file can be accessed again.
When restoring files, RESTORE first reads in the Store labels from the
devices specified either in the restorefile parameter, or in the
RESTORESET option. It then opens the appropriate media directory disk
file, if one exists. This allows RESTORE to more efficiently restore
files. The greatest advantage occurs when selectively restoring files from many
tapes, or if the backup was created with the sync point at the end.
Selective restores can be optimized further by specifying the disk directory
filename with the STOREDIR[ECTORY] option. If you specified a name for
the backup at Store time with the STOREDIRECTORY option, that name can
also be specified here. Alternately, you can specify the full HFS directory
disk file created by STORE.
Using the STOREDIR option causes RESTORE to read the directory
on disk and prompts you to mount the correct media for the restore,
shown as follows:
17:30/#S20/40/MOUNT MEDIA 2 OF SET 1 FOR RESTORE ON LDEV 7
For example, to restore the backup created on June 22, 1994
at 1:30pm by Pin 30, issue the following command: