HSM places requests on an MWE, this is single threaded. So not sure you can get around this process.
But I am curious why you are using HSM in this manner. Are you issuing BACKDS and MIGRATE commands in your TSO Batch Job stream? If so, how long have you been doing it this way? What version of z/OS are you on? If you want parallel processing, why not use DFDSS or FDR software to do the backups to tape? HSM migration has limits that you may not be able to get around for an application backup. HSM will issue a backup when the data is changed. And AUTOMIGRATION can occur in a manner you might require. Could you provide some details on what process or problem you are trying to solve? We might be able to come up with alternatives Lizette -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of J.P. Sent: Monday, September 16, 2013 9:09 AM To: [email protected] Subject: HMIGRATE in parallel Hi! We've got a scenario where we should do a backup of some data to data sets and after succesful backup send the previous copy to ML2 (so we've got only the latest on DASD). Since there are multiple backup jobs, we've tried to send a TSO command (via IKJEFT01 in the jobs) to HMIGRATE the old data sets, but as it turns out, HSM mounts only one tape per LPAR (if jobs are distributed to 2 LPARs => 2 parallel migrations). Since that's a bit slow, we're looking how to get some more instances running. There has been a similar question by John McKown back in 2005, but as Steve pointed out in that thread, there are a few facts: - command recalls are single thread executions (per userid?) - MAXMIGRATETASKS is only effective for primary space management I've tried to submit 2 jobs running under different users on the same LPAR and it's still single threaded.. Any ideas or experiences with similar problems? Thanks.. J ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
