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Using Labeled Tapes
2. Mount the tape, or deliver the tape to the operator with instructions that include:
The open mode (BLP)
The name of the tape drive your application will use
The time you will run the application that requires the tape
3. Run your application.
If you run an application, make sure that your application specifies the TAPE
DEFINE that describes the tape file you want. If your application allows you to
specify the TAPE DEFINE on the TACL command line, you must enter the correct
name of the TAPE DEFINE.
If BLPCHECK is on, the labeled-tape server displays the following request at the
operator console:
$ZSVR: 0341 REQUEST TO USE $TD2 WITH NO LABEL PROTECTION
"HIGH-PRIORITY! Call when finished"
4. You, or an operator, should mount the tape on the specified drive.
5. Issue a TAPECOM ACCEPT command.
The system does not check whether the mounted tape is the correct one before your
application continues processing. A TAPECOM REJECT command causes the open
request to fail with file-system error 194.
TAPE DEFINE Attributes
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Table 10-2. TAPE DEFINE Attributes (page 1 of 2)
Attribute
BLOCKLEN
DENSITY
DEVICE
EBCDIC
EXPIRATION Expiration date for the tape file
FILEID
FILESECT
FILESEQ
GEN
LABELS
OWNER
MOUNTMSG
Function
Data block size in bytes for a tape file
Tape density in bits per inch (bpi)
Tape drive on which the tape file is to be mounted
Specifies whether data is translated when processing an IBM tape
Tape file name
Order of the volume (or section of file) within a multivolume file being
created at the same time
Relative position of this tape file in a multifile volume set
Indicates that this file is part of a generation group
Type of tape; for labeled tapes, the label processing mode
Owner ID in the VOL1 label for IBM labeled tapes only
Mount message to be displayed with the system mount message or tape
drive use request
Guardian User's Guide —425266-001
10- 9
TAPE DEFINE Attributes
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