MAXSPACE

The MAXSPACE keyword specifies the maximum potential space on the first volume of a data set.

Syntax

Read syntax diagramSkip visual syntax diagramMAXSPACE=( nnnnnnnn,op)

MAXSPACE=(nnnnnnnn,op)

Where:

nnnnnnnn is an integer (0 - 16777215) that specifies the maximum potential space (in allocation units) that a data set can occupy on the first volume.

Note:
  • For non-VSAM data sets, MAXSPACE is calculated by adding the space that is required for the primary allocation to the space required for 15 extents worth of the secondary allocation. The Advanced Allocation Management MAXSPACE value is expressed in the specified units of allocation (CYL, TRK, and so on), not as the equivalent number of bytes.
  • For VSAM data sets, MAXSPACE is calculated by adding the space that is required for the primary allocation to the space required for 254 extents worth of secondary allocation.

Default

None.

Environments

ACS, ALLOCATE, EXTEND, UNALLOCATE, STOW, and CATCHECK.

JCL equivalent

DD01 DD SPACE=(CYL,(1,1)),...

Example

MAXSP=16577225