From the Vendor

 

FDRPAS is a non-disruptive data migration facility that can move individual z/OS disk volumes, or an entire DASD controller, to new hardware during normal system operations, without interrupting any system activity. It can swap shared DASD on all sharing systems simultaneously. FDRPAS is the ideal tool when implementing new DASD hardware, and is also useful whenever you need to do I/O load balancing to redistribute data over an existing DASD Controller to reduce I/O contention.

The average time required by FDRPAS to move (or “swap”) a 3390-3 to a new device is less than 3 minutes. Multiple FDRPAS operations can be run simultaneously, allowing you to move 100s of DASD volumes (many Tb’s) of data in a single day. 

An FDRPAS swap is accomplished non-disruptively and with minimal impact on the performance of applications using the volumes being swapped, which will continue to execute, unaware that the data movement is occurring. FDRPAS dynamically manages the copy process in response to system activity (e.g., copying inactive datasets before active datasets and pacing the copy I/O), to minimize its effect on the system. 

As well as normal “data” volumes, FDRPAS can also swap system volumes (including the SYSRES), as well as volumes containing z/OS Catalogs and datasets belonging to CICS, TSO, DB2 and your Security and Tape Management systems.

Supported Disk Hardware 

FDRPAS supports a wide variety of disk devices from hardware vendors including IBM, EMC and Hitachi. It can swap disk volumes between disks of the same type from the same hardware vendor, or between different hardware vendors without any special software or hardware modifications. 

Migrating to larger DASD

FDRPAS can swap a smaller device to a larger device of the same type (ex: 3390-9 to 3390-27), automatically updating the VTOC and Indexed VTOC on all sharing systems. However, for moving data at the dataset level, or for merging or consolidating large numbers of z/OS disks, FDRMOVE is the more appropriate tool to use.

Safety and Ease of use

A simulation feature is provided to validate the SWAP process (i.e. to check that you are selecting the right source and target volumes), and to highlight any pre-migration issues on the source volumes, such as VTOC or VVDS errors, which can then be corrected prior to the SWAP process being run for real.

FDRPAS can be terminated at any time before the final SWAP has completed, and this can be done without affecting the source volume or any applications using it. Protection against accidental cancellation of a FDRPAS task, such as a console CANCEL command, is also provided. 

Licensing

FDRPAS is included with FDRMOVE and can also be licensed separately.

 

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