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DFSMS HSM

Showing 99

Fast Replication target volumes that have no UCB should be ignored

With FR the pool storage group(source) and the COPY POOL BACKUP storage group(target) must not contain predefined devices without UCB. Application data can grow very fast, so we use automated tasks that initialize new volumes. Unfortunatelly, when...
about 2 years ago in z/OS / DFSMS HSM 0 Future consideration

HSM detaches lower level data mover tasks and produces hundreths of BPXP018I THREAD tttttt, IN PROCESS ppppp ENDED WITHOUT BEING UNDUBBED WITH COMPLETION CODE 0033E000 AND REASON CODE 00000000

During file backup we get hundreths of BPXP018I with COMPLETION CODE 0033E000. When this is the way how HSM works it would be great to change it and avoid all this messages as the backup function in HSM ends correctly. Putting the BPX018I into MPF...
about 1 year ago in z/OS / DFSMS HSM 0 Future consideration

Force HSM to reconnect active request to DS8k HMC

Using TCT HSM sends migrate/ recall requests to the DS8k HMC using IP. In case there is a problem with this HMC, it's possible to reconfigure SMS with an alternate HMC, but the active tasks are still connected to the 'failed' HMC and never end. Fa...
over 1 year ago in z/OS / DFSMS HSM 0 Future consideration

Maximum same GDG parallel recall

In an GDG Extended environment, concurrent recall of too many (up to 999) GDSs may cause issues, the main ones being:1) Flood HSM recall queue with too many recalls, which can be:Too fast: With BATCH_RCLMIGDS(PARALLEL) in ALLOCxx all 999 recalls w...
about 3 years ago in z/OS / DFSMS HSM 0 Future consideration

HSM EXPIREBV to be part of Automated function

In most of the clients I have worked, one thing I observed is they were missing to run EXPIREBV regularly. Few shops schedule them as batch jobs or run adhoc and when people change or with time, they tend to forget to look into it. Because of this...
11 months ago in z/OS / DFSMS HSM 0 Future consideration

Add a possibility to limit the number of parallel tasks to prevent S878 ABENDing HSM STC

During recover of over 1000 datasets we increased the maximum recover tasks step by step to 12. Once we reached 12 HSM STC itself ABENDed because of a S878 because of a storage constraint below the line. This is documented as works-as-designed: ht...
about 2 years ago in z/OS / DFSMS HSM 1 Future consideration

BLKSize of 16KB is much less than TapeBlkSZLim of 256K

DFSMShsm only writes 16K-Blocks to Tape,both for Migration and Backup.Many of our files are greater ones, which would participate much of larger block sizes.
almost 10 years ago in z/OS / DFSMS HSM 7 Planned for future release

HSM FLB support of archive function

The current set of available functions does not allow to 'archive' a file
almost 5 years ago in z/OS / DFSMS HSM 2 Future consideration

DFSMShsm full volume dump is still limited to 40 volumes

During our HSM space management, we have defined one dump class, which runs once a week. At this dump class, we have included our large application development department volumes (EAVs with 1182006 Cylinders per Volume). During our last full volum...
over 3 years ago in z/OS / DFSMS HSM 1 Future consideration

Thin Provision Release from HSM for Mainframe

Provide for thin provisioning space release when HSM does space management on zOS.
over 4 years ago in z/OS / DFSMS HSM 0 Future consideration

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