Copy data set output descriptors

These characteristics include:

• Disk or tape unit name

• Operating system cataloging requirements for the data set

• Model data control block (DCB)

• Generic data set name

• Largest number of volumes expected to be used

• SMS class information

• For disk data sets:

  • Disk space information

  • Lists of volumes

• For tape data sets:

  • Stacked tape indicator

  • Optional data compression

  • Data set retention period

  • Data set expiration date

An output descriptor specifies a disk data set or a tape data set. It cannot specify both.

When you want to use dynamic allocation, use an OUTPUT command statement in your SYSIN data set to specify allocation parameters. The OUTPUT command statement must precede your RECOVER command statement as in the following example:

OPTIONS INDEXLOG YES ANALYZE YES OUTCOPY ASCODED

OUTPUT SYSCOP1 UNIT CART STACK YES
 DSNAME RDAMSM.IC&TYPE.&DB.&TS.P&DSNUM(+1)
OUTPUT SYSCOP2 UNIT CART STACK YES
 DSNAME AFR.IC&TYPE.&DB.&TS.P&DSNUM(+1)

RECOVER TABLESPACE  AFRDB01.TS01 OUTCOPY ONLY 
 OUTCOPYDDN(SYSCOP1,SYSCOP2)
        INDEXSPACE  AFRDB01.IX01 OUTCOPY ONLY 
 OUTCOPYDDN(SYSCOP1,SYSCOP2)
 INDEXSPACE  AFRDB01.IX02 DSNUM 1 OUTCOPY ONLY
 OUTCOPYDDN(SYSCOP1)
TOLOGPOINT LASTQUIESCE

GDGs and symbolic variables in data set name construction provides more information.

The preceding example allocates all image copies based on the output descriptors for SYSCOP1 and SYSCOP2. Data set names are as follows:

RDAMSM.ICLP.AFRDB01.TS01.P00(+1)
AFR.ICLB.AFRDB01.TS01.P00(+1)

RDAMSM.ICLP.AFRDB01.IX01.P00(+1)
AFR.ICLB.AFRDB01.IX01.P00(+1)

RDAMSM.ICLP.AFRDB01.IX02.P01(+1)

If the copies are being made by partition, you do not need to specify a DD name prefix, as you do with JCL-allocated copies. All partitions of the output copy can be allocated with the same OUTPUT descriptor.

For more information, see the syntax description in OUTPUT syntax.