Format of image copy data sets
IMS HP Image Copy supports several formats for image copy data sets.
The Image Copy function creates image copy data sets in one of the following formats:
- Standard image copy
- IMS image copy
- Compressed image copy
- Fast Recovery image copy
You can use image copy data sets created by IMS HP Image Copy jobs as an input to Recovery function jobs and Create Image Copy function jobs.
The Recovery function also supports the following image copy data set formats, which can be created by standard IMS utilities:
- IC2 image copy, which is created by the Database Image Copy 2 utility (DFSUDMT0)
- Online image copy, which is created by the Online Database Image Copy utility (DFSUICP0)
By using the Create Image Copy function with the CRCTYPE keyword, you can change the format of image copies between IMS image copy and compressed image copy. You can also change the format from Fast Recovery image copy to IMS image copy or to compressed image copy.
In this information, IMS image copy and compressed image copy are referred to as standard image copy format of IMS HP Image Copy.
The following table summarizes the formats of image copy data sets that can be created with IMS HP Image Copy.
| Format | Standard image copy process | Advanced Image Copy Services process | IMS compatible JCL | |||
|---|---|---|---|---|---|---|
| FASTIC DUMP | FASTIC FDUMP | FASTIC COPY | Offload of FASTIC COPY Note | |||
| Standard image copy format | Yes | Yes | Yes | No | Yes | Yes |
| Fast Recovery image copy format | No | No | No | Yes | Yes | No |
Note: Offload copy creates secondary image copy data sets in the FASTIC COPY process of
Advanced Image Copy Services. The format of the primary image copy data set is always Fast Recovery
image copy.
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