z/OS JES2 Commands
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$T OFFLOAD(n) - Set offload device characteristics

z/OS JES2 Commands
SA32-0990-00

Function

To specify the characteristics of one or more indicated logical offload devices.

Syntax

Read syntax diagramSkip visual syntax diagram
>>-$T--OFFLOAD--+-n--+-----------+-------------------+---------->
                |    '- ---+-n-+-'                   |   
                |          '-*-'                     |   
                |    .-,------------------------.    |   
                |    V                          |    |   
                '-(------+-n-+--+-----------+---+--)-'   
                         '-*-'  '- ---+-n-+-'            
                                      '-*-'              

>--+---------------------------------+-------------------------->
   '-| Selection limiting keywords |-'   

>--+---------------------------+-------------------------------><
   '-| Modification keywords |-'   

Modification keywords

|--+------------------------+--+---------------------------+---->
   '-,--ARCHIVE--=--+-ALL-+-'  |               .-RESET---. |   
                    '-ONE-'    '-,--CRTIME--=--+-RESTORE-+-'   

>--+-------------------+--+----------------------+-------------->
   '-,--DSN--=--dsname-'  '-,--LABEL--=--+-AL--+-'   
                                         +-AUL-+     
                                         +-BLP-+     
                                         +-NL--+     
                                         +-NSL-+     
                                         +-SL--+     
                                         '-SUL-'     

>--+------------------------+--+-------------------+------------>
   '-,--PROTECT--=--+-No--+-'  '-,--RETPD--=--nnnn-'   
                    '-Yes-'                            

>--+-----------------------------------------------+------------>
   '-,--UNIT--=--+-+-devnum---+------------------+-'   
                 | +-/devnum--+                  |     
                 | +-nnnn-----+                  |     
                 | +-cccccccc-+                  |     
                 | '-+-----+--'                  |     
                 |   '-,nn-'                     |     
                 '-(--+-devnum---+--+-------+--)-'     
                      +-/devnum--+  '-,--nn-'          
                      +-nnnn-----+                     
                      +-cccccccc-+                     
                      '-+-----+--'                     
                        '-,nn-'                        

>--+----------------------+--+-------------------------+-------->
   '-,--TRACE--=--+-No--+-'  '-,--VALIDATE--=--+-No--+-'   
                  '-Yes-'                      '-Yes-'     

>--+------------------+-----------------------------------------|
   '-,--VOLS--=--vols-'   

Selection limiting keywords

|--+-------------------------------+---------------------------->
   '-,----/----DSN--+-=--+--dsname-'   
                    +-^=-+             
                    +->--+             
                    '-<--'             

>--+----------------------------------+------------------------->
   '-,----/----LABEL--+-=--+--+-AL--+-'   
                      '-^=-'  +-AUL-+     
                              +-BLP-+     
                              +-NL--+     
                              +-NSL-+     
                              +-SL--+     
                              '-SUL-'     

>--+------------------------------------+----------------------->
   '-,----/----PROTECT--+-=--+--+-No--+-'   
                        '-^=-'  '-Yes-'     

>--+-------------------------------+---------------------------->
   '-,----/----RETPD--+-=--+--nnnn-'   
                      +-^=-+           
                      +->--+           
                      '-<--'           

>--+----------------------------------+------------------------->
   '-,--+---+--TRACE--+-=--+--+-No--+-'   
        '-/-'         '-^=-'  '-Yes-'     

>--+-------------------------------------+---------------------->
   '-,----/----VALIDATE--+-=--+--+-No--+-'   
                         '-^=-'  '-Yes-'     

>--+------------------------------+-----------------------------|
   '-,----/----VOLS--+-=--+--vols-'   
                     +-^=-+           
                     +->--+           
                     '-<--'           

Parameters

(n)
The subscript defining the logical offload device(s) affected by this command. The subscript can specify a numeric value (1-8) or a range of values for offload devices defined by an OFFLOAD(n) initialization statement. For information about specifying a range for this subscript, see Command syntax conventions.
ARCHIVE={ALL|ONE}
Specifies whether to allow the offload device to select a job whose disposition is KEEP or HOLD.

If you specify ARCHIVE=ONE, that offload device will not reselect a job whose disposition is KEEP or HOLD; if you specify ARCHIVE=ALL, all offload devices are prevented from re-selecting the job.

CRTIME={RESET|RESTORE}
Specifies the creation time to be associated with jobs and output on reload.
RESET
Indicates that the time to be assigned is the time of the reload.
RESTORE
Indicates that the time to be assigned is the original creation time (before the data was offloaded).
DSN=dsname
The 1 to 44 character offload data set and member name. The use of a generation data set (GDG) or a Partitioned Data Set (PDS) is not supported for this parameter.
LABEL = {AL|AUL|BLP|NL|NSL|SL|SUL}
The type of label processing required for the tape that is allocated for a non-cataloged spool offload data set. The valid types and their meanings are:
Type
Meaning
AL
American National Standard label
AUL
American National Standard label and American National Standard user-defined label
BLP
Bypass label processing
NL
No label
NSL
Non-standard label
SL
IBM® standard label
SUL
IBM standard label and user-defined label
PROTECT={No|Yes}
Specifies whether (Y) or not (N) the spool offload data set requires System Authorization Facility (SAF) protection.
RETPD=nnnn
The period (0-9999), in days, for which this offload data set is retained.
UNIT=({devnum|/devnum|nnnn|cccccccc} [,nn])
 
devnum|/devnum
Specifies a 3-digit or 4-digit hexadecimal device number. A slash (/) must precede a 4-digit device number.
nnnn
Specifies a device type.
cccccccc
Specifies a one to eight character group name assigned to the device or group of devices that are to receive non-cataloged spool offload data sets.
nn
Specifies a number, one to 59, that are allocated to mount the volumes containing the offload data set.
TRACE={No|Yes}
Specifies whether trace records are to be cut for data read or written by this offload device. See specific trace IDs for more information.
VALIDATE={No|Yes}
Specifies whether JES2 should validate the logical record length of the first (header) record read from the offload data set.
  • If YES is specified, JES2 will validate the logical record length of the first record.
  • If NO is specified, JES2 will not validate the logical record length of the first record. Specifying NO allows the offload device to continue to read the offload data set, even if the first record is not valid or missing.
VOLS=vols
Specifies the volume count (1-255) to be used for the offload data set.

Authority Required

This command requires system authority. The description of the $T RDRnn command explains how to ensure that the authority of the appropriate MVS™ system command group is assigned.

This command requires control security access authority. For a description of assigning command input authority, see z/OS JES2 Initialization and Tuning Guide, SA32-0991.

Processing Considerations

  • This command is valid only if the indicated offload device is drained.
  • If you are uncertain of the characteristics in effect, enter the $D or $D U command for the offload device in question.

Scope

Single member. This command will be in effect for this member only. There is no need to have this command issued to all members of the MAS.

Messages

The $HASP882 message displays the current settings of all the parameters on the OFFLOAD(n) initialization statement.

Examples

 1   $t offload1,dsn=off.dump1,label=sl,unit=/c045

      $HASP882 OFFLOAD1  DSN=OFF.DUMP1,STATUS=DRAINED,ARCHIVE=ONE,
      $HASP882           CRTIME=RESET,LABEL=SL,PROTECT=NO,RETPD=30,   
      $HASP882           TRACE=NO,UNIT=(/C045,1),VALIDATE=YES,VOLS=255
The offload data set for OFFLOAD1 is named OFF.DUMP1. The tape allocated for this data set requires IBM standard label (SL) processing.
 2   $t offload3,protect=yes,retpd=40 

      $HASP882 OFFLOAD3  DSN=OFF.DUMP3,STATUS=DRAINED,ARCHIVE=ONE,
      $HASP882           CRTIME=RESET,LABEL=SL,PROTECT=YES,RETPD=40,
      $HASP882           TRACE=NO,UNIT=(,1),VALIDATE=YES,VOLS=255

The offload data set named OFF.DUMP3 requires SAF protection. JES retains this data set for 40 days.

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