Providing VSAM sphere reorganization parameters
When you select the Reorganization option
for VSAM spheres, the CICS® VR VSAM sphere reorganization parameters
secondary
window opens. Use this window to specify the parameters for the reorganization
job.
DWWPPRGS CICSVR VSAM sphere reorganization parameters Row 1 to 2 of 2
Type the increase amount, percent, and specify new CI sizes for desired
entries. Switch reorganization type by pressing PF4, SwType, if needed.
Press Enter to continue.
VSAM sphere . . . . . . : CICSMVS.AA.KSDS01
Reorganization type . . : AIXFULL
Increase . . . . . . . . 10 % (0-99)
Backup name for ESDS . . ____________________________________________
REORG mode . . . . . . . 2 (1-CICS Offline, 2-non-CICS)
CICS APPLID . . . . . . . ________
VSAM sphere entry Type Cur. CI New CI
CICSMVS.AA.KSDS01.DATA DATA 4K 4608
CICSMVS.AA.KSDS01.INDEX INDEX 2K ____
Command ===> ________________________________________________________________
F1=Help F4=SwType F7=Bkwd F8=Fwd F12=Cancel
The parameters you need to specify are as follows:
- Reorganization type
- There are two reorganization types, AIXFULL and NOSPACE. Press F4, SwType,
to switch between the two types.
- AIXFULL
- All the components of the VSAM sphere are reorganized according to the parameters that you specify for the reorganization job. The reorganization type AIXFULL can be used only for a VSAM sphere that has alternate indexes defined.
- NOSPACE
- Only the base cluster of the VSAM sphere is affected by the reorganization.
- Increase
- The percentage amount by which the space of the sphere and its alternate indexes increases. The default is 10%. 99% almost doubles the space. If you specify zero, the space of the VSAM sphere remains unchanged, and the only changes made in the reorganization are to the control interval (CI) sizes for the components of the sphere, if you have requested changes using the New CI fields.
- Backup name for ESDS
- The backup name is used for a backup step after the reorganization, if
you change any of the control interval (CI) sizes for the components of the
sphere. After changing the CI size, backup of an ESDS sphere is required for
any further forward recovery processing to run correctly, because the change
to the CI size affects the Relative Base Addresses (RBAs) of the records.
The backup name for an ESDS sphere is ignored if the sphere being processed is not of an ESDS type or if you leave all of the New CI fields blank.
- REORG mode
- There are two reorganization modes, CICS Offline and non-CICS. Specify 1 for CICS Offline,
and 2 for non-CICS.
- CICS Offline
- Additional processing is carried out to disable the VSAM sphere and take it offline to a particular CICS region before the reorganization, and to enable the VSAM sphere to CICS after the reorganization. If you choose the CICS Offline reorganization mode, you must specify a CICS APPLID, which is used to take the sphere offline to that CICS region.
- Non-CICS
- The VSAM sphere is not taken offline to any CICS region.
- CICS APPLID
- The APPLID of the CICS region to which the VSAM sphere is to be taken offline before the reorganization.
- New CI
- The new control interval (CI) size for this component of the VSAM sphere, in either bytes or kilobytes. For kilobytes, specify K after the numeric value, for example, 16K. If you specify the new value in bytes, the maximum value is 32768. If you specify the new value in kilobytes, the maximum value is 32 KB.