If there are several requests referring to the same archive, HSMS normally processes them individually and independently of one other. Under certain conditions, however, HSMS combines such requests in a collector request before processing. This reduces the number of tape access and positioning operations during processing.
Requests are combined in such a collector request if the following conditions apply:
They cannot be processed immediately.
They are processed on the processor on which they were issued.
They are requests for archival or migration to storage level S2.
They were not created by the HSMS administrator.
They refer to a system archive (owner SYSHSMS).
The standard save file of this archive is being used and updated.
Separate reports are generated and output for each of the requests collected.
Information about each of the requests can still be obtained via the normal request name. Its substate will be COLLECTED as long as it is being processed (STARTED state).
If a collector request is interrupted, its restart must be initiated by the HSMS administrator.
If during the migration a particular request is to be monitored with SM2, all requests of the collector request will be monitored.