IBM z/OS Data Set Mobility Facility

Learn more about IBM z/OS Data Set Mobility Facility

Why IBM z/OS Data Set Mobility Facility?

Many IT organizations want to take advantage of the large-capacity volumes on today’s storage subsystems, but complex and disruptive data migrations negatively impact their business applications. Data conversion onto large volumes is time consuming and can involve long application outages. IBM z/OS® Data Set Mobility Facility (zDMF) helps to move data with greater flexibility, efficiency and reliability at a lower cost.

Migrations without affecting application availability

zDMF frees you from manual data set migration and potentially speeds the deployment of new storage technology. It does this by supporting non-disruptive data-set migrations in multivendor environments. It also enables model (MOD) consolidation of any size. zDMF streamlines closed data-set copying. You can copy data sets that are closed when migration begins, giving you faster migration of data sets that are not in use.

Effective UCB management and extent consolidation

Moving and consolidating data sets from multiple small-volume subsystems to a few large-volume subsystems can enhance unit control-block (UCB) management. zDMF can complete a DB2 data migration without disrupting applications. You can immediately reclaim hundreds of UCBs and use them to support new business initiatives.

Divert option and selective extent migration

zDMF also helps you either schedule a DIVERT command or set a “divert when ready” option to allow for automated transitions to the diversion phase. This helps eliminate the need to manually issue the DIVERT command. Rather than a single approach to data migration, zDMF allows you to migrate selected extents of a multi-volume data set. This capability can shorten migration time, circumvent the need for additional storage and enable more efficient migration management through automation.

More details about IBM z/OS Data Set Mobility Facility

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Technical details

Software requirements

Supports all IBM Multiple Virtual Storage (MVS™) software-based operating systems that are currently supported by IBM (for example, IBM z/OS v1.10 software and above).

IBM Transparent Data Migration Facility (TDMF®) for z/OS is recommended for use in conjunction with zDMF to allow both data-set and volume-level migrations, providing an efficient and cost-effective migration approach.

Hardware requirements

Supports all storage attached to z series server formatted with IBM z/OS technology, including 3380 and 3390 volumes supporting count key data/extended (CKD/E) format and EAV capabilities.

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IBM Transparent Data Migration Facility z/OS

IBM® Transparent Data Migration Facility (TDMF®) z/OS® is host-based software that enables local or global data migration for storage attached to IBM z/OS mainframes across multivendor environments. It provides data migration for both z/OS and z/VM. TDMF is vendor independent as well as user-initiated and controlled. It allows for full system sharing throughout the data center and guarantees full access to the data at any point during a migration operation. It also supports dynamic takeover on the part of the target device while applications remain online. New storage subsystem technologies can be brought in with minimal disruption.

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