Tapemode; Example; Guidelines; Verifyreel - HP BACKCOPY Reference Manual

$volume.subvolume.AA*
The START option works the same as the START qualifier in a qualified file set.

Example

If $DATA.AAA.AA through $DATA.CCC.PZZZZZZ are already backed up, and you do not want
to back them up again, to start another BACKUP procedure where the previous one ended:
1> BACKUP $TAPE2, $DATA.*.*, START CCC.QA, LISTALL

TAPEMODE

The TAPEMODE option specifies the tape recording mode for tape units that support streaming.
Streaming mode is a faster mode of transmission that locks the drive into a constant carrier signal.
You can back up large files considerably faster if you specify the STREAM mode rather than the
STARTSTOP mode.
TAPEMODE [ STARTSTOP | STREAM ]
STARTSTOP
indicates tape speed is 50 ips (inches per second) and tape density is 12000 bpi (bits per
inch). This mode writes one record to the tape at a time.
STREAM
indicates tape speed is 75 ips and tape density is 12000 bpi. This mode writes one block to
tape at a time.

Guidelines

You cannot specify the TAPEMODE and DENSITY options in the same BACKUP command.
The default recording mode is the physical setting of the tape drive if you do not specify the
TAPEMODE option.

VERIFYREEL

The VERIFYREEL option, for use in file mode only, directs BACKUP to examine each reel for data
integrity after the tape is written.
VERIFYREEL
Guidelines
Using the VERIFYREEL option rewinds the tape when it reaches the end and then reads and
examines the tape. Verification involves checking tape-record sequence numbers and reading
the volume labels, file labels, data records, and checksums.
The VERIFYREEL option does not examine a file until it rewinds the tape. Use the VERIFYTAPE
option (for format 2 tapes) to examine a file immediately after it is written. Format 3 tapes
cannot be verified after each file is written.

VERIFYTAPE

The VERIFYTAPE option, for use in file or volume mode, directs BACKUP to examine each tape
reel for data integrity. BACKUP examines the tape after each file is written (or after the entire tape
is written) depending on the tape format in use.
VERIFYTAPE
BACKUP Options 69