You can request information
about unallocated storage by specifying
the SPACE=UNALLOC parameter of the VSMLIST macro. You can obtain
this information for CSA and private area subpools only, by specifying
SP=CSA or SP=PVT.
Figure 1 shows the format
of the output
for a SPACE=UNALLOC request for CSA or PVT subpools.
Figure 1. Unallocated Storage Information
for CSA and PVT SubpoolsNote: - The number of region descriptors and the number
of unallocated
blocks in each region are given as 31- bit numbers.
- Figure 2 shows the format of a region descriptor.
- Figure 3 shows the format of an unallocated
block descriptor.
Figure 2. Format of Region Descriptor- Byte
- Content
- 0-3
- The virtual
address of the region (CSA, ECSA, RCT area, V=V
area, extended V=V area, or V=R area)
- 4-7
- The length of the region
Figure 3. Format
of Unallocated Block Descriptor- Byte
- Content
- 0-3
- The virtual
address of the unallocated block
- 4-7
- The
length of the unallocated block