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#datasets (5)

Cheat sheets (5)

DFSMShsm — Hierarchical Storage Manager

Migrate, recall, back up, and recover datasets across ML0/ML1/ML2 tiers with TSO H-commands and ARC operator commands; bulk-recall recipes, recall timing, and audit messages.
zos mainframe hsm dfsmshsm storage datasets sms web-researched

GDG — Generation data groups for rolling datasets

Define, reference, and clean up z/OS generation data groups via IDCAMS — relative generations, rollover behaviour, model DSCBs, and the modern GDGEXTENDED mode.
zos mainframe gdg datasets idcams web-researched

IDCAMS — Access Method Services for VSAM

Define, copy, list, alter, and delete VSAM clusters and general datasets — the everyday utility for catalog and dataset lifecycle on z/OS.
zos mainframe vsam idcams datasets web-researched

IEBCOPY — Partitioned dataset copy, compress, and unload

IBM utility for copying, merging, compressing, unloading, and reloading PDS and PDSE libraries on z/OS, including member selection, rename, and exclusion.
zos mainframe iebcopy datasets pds web-researched

JCL DD Statement — Deep Reference

Comprehensive reference for the JCL DD statement: DSN, DISP, DCB, SPACE, UNIT, VOL=SER, concatenation, DUMMY, SYSOUT, KEYLEN.
jcl dd-statements zos mainframe datasets batch web-researched