If the recall procedure is controlled via SECURE-RESOURCE-ALLOCATION, the following effects are to be expected:
Implicit recall is initiated only if the user is ready to wait (operand WAIT=(TIME=wait-time)). Default for interactive tasks: no wait time. Such a wait time should be sufficiently long so as to enable tapes to be accessed (possible value: 2 minutes).
All the files required for a job (up to 48) can be requested with one command and recalled via one request. This reduces the number of HSMS calls and possibly also the number of tape requests.
There is a defined waiting point after which processing either can start or must be aborted. “Unpleasant surprises” caused by missing files during processing can thus be avoided.
HSMS outputs a summary report for recall requests initiated in this way. Such a report for implicit recalls is otherwise printed in the event of an error only.
Tape access can be coordinated by the system administrator by means of defined tape processing times. Please contact your system administrator if restrictions of this kind are reported after you tried to access a migrated file.