IMS Database Recovery Facility
The Image Copy function integrates with IMS Database Recovery Facility and creates image copies while the IMS Database Recovery Facility job is running.
- Image copy data sets of recovered database data sets.
- Incremental Image Copy (ICR) where a new image copy is created from an image copy, a log, and/or a change accumulation input data sets for every database data set in the recovery list that uses the recovery process. Actual database recovery is not done and the databases are not accessed.
Supported image copy features
The following table summarizes the image copy features that are supported for IMS Database Recovery Facility.
| Feature | Feature is supported? | |
|---|---|---|
| Format of output image copy data set | Batch image copy | Yes |
| Compressed image copy | Yes | |
| Fast Recovery image copy | - | |
| Data access method | Advanced Image Copy Services support | - |
| High Performance Input/Output interface | - | |
| OS access method | - | |
| Processing type | Parallel processing | Yes |
| Dynamic allocation of output image copy data sets Note 1 | Yes | |
| Batch image copy and concurrent image copy | Batch/CIC Note 2 | |
| Processing option | Stacking output image copies | Yes |
| Checkpoint Restart | - | |
| Creating multiple image copies at one time (maximum number of image copies) | Yes (2) | |
| Virtual image copy process | Yes | |
| Processing option control | Site default table | Yes |
| IMS command interface | Integration with IMS Tools Online System Interface | - |
| IMS Tools KB support | Central management of reports | - |
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Notes:
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How to request and control the image copy process
- The IC() keyword on the ADD command indicates that an image copy is to be created for each recovered database.
- The OUTPUT(ICR) keyword indicates that an incremental image copy is created using the prior image copy and archived logs or change accumulation data sets as input.
Control statements for the image copy process are read from the following resources:
- UTILGBL control statement of IMS Database Recovery Facility JCL stream
- IC keyword parameter of the ADD command of IMS Database Recovery Facility JCL stream
- IMS HP Image Copy site default table, if the site default module is found in the STEPLIB concatenation
If you want to add keywords or replace the default keyword values for controlling the image copy process, specify the values in one of these resources. ICEIN DD statement is not supported.
For information about invoking the Image Copy function in IMS Database Recovery Facility jobs, see the IMS Recovery Solution Pack IMS Database Recovery Facility User's Guide.
Supported keywords and default values for the image copy process
For some keywords, the default value applied is different from the value applied to stand-alone Image Copy function jobs. The following table summarizes the keywords that you can use to control the image copy process in IMS Database Recovery Facility jobs. It also summarizes the default values applied to the image copy process.
| Keyword | Can be specified as site default | Acceptable values | System default value under IMS Database Recovery Facility | Topic |
|---|---|---|---|---|
| COMP | Yes | Y or N | N | COMP keyword |
| COMPRTN | Yes | routine | FABJCMP3 | COMPRTN keyword |
| DATACLAS | No | class-name | None | DATACLAS keyword |
| DSN | Yes | expression | None | DSN keyword |
| DSN2 | Yes | expression | None | DSN2 keyword |
| EXPDT | No | yyyyddd or yyddd | None | EXPDT keyword |
| ICBUF | Yes | 0 - 255 | 50 | ICBUF keyword |
| ICCAT | Yes | Y or N | Y | ICCAT keyword |
| ICHLQ | Yes | hlq1 or (hlq1,hlq2) | None | ICHLQ keyword |
| ICHLQ2 | No | hlq2 | None | ICHLQ2 keyword |
| ICNMRULE | Yes | Y or N | N | ICNMRULE keyword |
| KEYLABEL | Yes | encryption_key_label | None | KEYLABEL keyword |
| MGMTCLAS | No | name | None | MGMTCLAS keyword |
| RETPD | No | nnnn | None | RETPD keyword |
| SPACE | Yes | (CYL|TRK|blk, primary, secondary) | None | SPACE keyword |
| STACK | Yes | One of the following formats:
|
None | STACK keyword |
| STACKBASE | No | TEMP|REAL | TEMP | STACKBASE keyword |
| STORCLAS | No | name | None | STORCLAS keyword |
| UNIT | Yes | unit-name or (unit-name,unit-count) | SYSALLDA | UNIT keyword |
| UNIT2 | No | unit-name or (unit-name,unit-count) | SYSALLDA | UNIT2 keyword |
| VIC | Yes | Y or N | N | VIC keyword |
| VICDSN | Yes | dsname | None | VICDSN keyword |
| VOLCNT | No | nnn | 1 | VOLCNT keyword |
| VOLSER | No | volser or (vol1,vol2,...) | None | VOLSER keyword |
| VOLSER2 | No | volser or (vol1,vol2,...) | None | VOLSER2 keyword |
| WAITMSG | Yes | Y or N | Y | WAITMSG keyword |
| WAITTIME | Yes | nnnn | 30 | WAITTIME keyword |