Using TurboSTORE/iX 7x24 True-Online Backup (product number
HPB5152AA), you have the ability to store files to disk files. This
feature allows you to quickly back up filesets. It also allows you
to create archive files that maintain all MPE file attributes. Since
the disk backup file created is a flat, binary disk file, it can
be moved to different systems, or even different operating systems,
and then RESTORE can be used to extract the archived files. Disk
files created by TurboSTORE can only be created and restored on systems
running MPE/iX 5.5 or later. They cannot be restored on a pre-5.5 system.
File equations are used to tell TurboSTORE to store to a disk
file. Instead of setting up the store device file equation to reference
a tape device, set up the file equation to point to a disk file. For example:
:FILE MYBACKUP;DEV=DISC
or
:FILE MYBACKUP=FULLBACK.BACKUPS.SYS;DEV=DISC
When specifying the file equation, ;DEV=DISC MUST be specified in
order to Store to a disk file.
The target of the file equation can point to any MPE or HFS filename.
Any other information specified in the file equation will be ignored
by TurboSTORE, so only the filename and DEV=DISC should be used.
It is strongly recommended that you do NOT build the target disk file before
invoking STORE. TurboSTORE will create the target disk file as a binary file,
with a default record size of 256 bytes. The file will also be created with the
file code 2501. The file system mnemonic for this is STORE. For
example, here is a listing of a TurboSTORE disk backup file created by STORE:
Although it is not recommended, you can create the target
disk files before starting the backup. Only normal, fixed, or undefined
length record files can be specified. STORE opens the file for user-mapped
write access, so any restrictions that apply for user-mapped access apply
for store disk files. Store will NOT change the file code of an
existing disk file, so if you want the file to have the proper file
code, specify it when you build the file.
If STORE fills up the first disk file specified for the backup,
it creates as many additional disk files as needed, or uses existing
disk files. They will be built with the same default file characteristics
as the first disk file. The naming convention used for additional
files is to append the reel number to the end of the first disk
filename. The resulting name will be an HFS-syntax name.
For example, if STORE needed three disk files to store all
files, they would be named:
/SYS/MYBACKUP/STORDISC
/SYS/MYBACKUP/STORDISC.2
/SYS/MYBACKUP/STORDISC.3
When STORE moves on to another file, be sure enough disk space exists before
doing the backup.
NOTE: The disk files can be restored by the MPE/iX 5.5 Limited
Release version of RESTORE or later. RESTORE cannot restore disk
files on pre-MPE/iX 5.5 systems.