> -----Original Message----- > From: IBM Mainframe Discussion List On Behalf Of Lizette Koehler > > z/OS V1.12 - Yes I know. > > > Okay, I am sure this is in a very easy to locate part of the HSM Admin > manual, but I just am not > seeing it. > > This should be an easy question. I want to recall 5000 datasets. Do I still > need to > 1) List all datasets from an HLIST > 2) Sort that list on the Migrate Volser > 3) Send in the recalls based on the collection of datasets based on which > migrate volume they are on? > > Or can I enter all of the requests and HSM is smart enough to know to recall > all of the datasets from > the same tape and not mount tapes as it reads the DSNs in FIFO? > > > The helpful manual is not really helping.
Our HSM guru cites this: "Found this in the HSM Admin for Z/OS 1.11 - An exception to the order of processing is when doing recalls from tape, where DFSMShsm reduces the number of mounts by doing several recalls from a given tape while the tape is continuously mounted. If a recall task has just completed a recall from a tape, it processes the highest-priority request that is currently on the queue for that same tape, no matter where the request is positioned on the queue. DFSMShsm continues to process only recalls from this single tape for a duration of time that is specified by the TAPERECALLLIMITS parameter. After the time specified by the TAPERECALLLIMITS parameter is reached, DFSMShsm determines whether a higher-priority recall request that needs this tape exists on another DFSMShsm host. If so, it ends the recall processing on the tape by the current DFSMShsm host, freeing the tape for use by other hosts. If no higher-priority request exists, DFSMShsm continues to process any recalls requested from the tape. DFSMShsm checks after every recall for a higher-priority recall request from other hosts." -jc- ********************************************************************** Information contained in this e-mail message and in any attachments thereto is confidential. If you are not the intended recipient, please destroy this message, delete any copies held on your systems, notify the sender immediately, and refrain from using or disclosing all or any part of its content to any other person. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
