FASTIC=(FREQ,), FASTIC=(REQ,), and FASTIC=(PREF,) processing

Advanced Image Copy Services is initiated if the FASTIC keyword of the ICEIN control statement is present in IMS HP Image Copy JCL. The first parameter of the FASTIC keyword indicates whether the use of the Advanced Image Copy Services functions is required or preferred.

FASTIC is beneficial when there is a small amount of time during which the database can be unavailable. If Advanced Image Copy Services are available, then logical copy is performed quickly, and the database data set is made available. If Advanced Image Copy Services are unavailable, then the image copy is not taken, thus preventing the data set from being locked for a longer period of time.

If you specify FASTIC=(FREQ,) where FREQ represents FlashCopy® required, the image copy process fails if both SnapShot Copy and FlashCopy are unavailable.

If you specify FASTIC=(REQ,) where REQ represents required, the image copy process fails if none of the Advanced Image Copy Services (Concurrent Copy, SnapShot Copy, or FlashCopy) are available.

If you specify FASTIC=(PREF,DUMP) where PREF represents preferred, any available Advanced Image Copy Services are used and logical copy processing takes place followed by physical copy processing. If none of the services are available, the image copy is still created by the DFSMSdss DUMP command, but logical copy processing fails and access to the data set is restricted until physical copy processing completes.

Note: If logical copy processing of DFSMSdss fails, IMS HP Image Copy does not process with FASTIC=N. This is true even if you specify FASTIC=(PREF,DUMP).

FASTIC=(PREF,COPY) processing runs in the same way as FASTIC=(REQ,COPY) processing. If none of the Advanced Image Copy Services are available, then the image copy fails. FASTIC=(,COPY) processing requires one of the Advanced Image Copy Services to create image copies.