Restrictions for saving to multiple devices

 

The devices that you specify in a media definition must be compatible standalone tape devices or tape media library devices.

The tape volumes that you specify must have compatible media formats.

Your results may depend on the device type that you use. This is because different device types may identify different formats for the same media. For example, one 8 mm device may identify a tape as having an FMT7GB format, while a different 8 mm device might identify the same tape as having an FMT5GB format.

You may use a media definition on the following commands and APIs:

Name API1 Command2
Save Library SAVLIB
Save Object QSRSAVO SAVOBJ
Save QsrSave SAV
Save Changed Object SAVCHGOBJ
Restore Library RSTLIB
Restore Object (Library) RSTOBJ
Restore Object Integrated File System QsrRestore RST
Create Media Definition

QsrCreateMediaDefinition
QSRCRTMD

Delete Media Definition

QsrDeleteMediaDefinition
QSRDLTMD

DLTMEDDFN
Retrieve Media Definition

QsrRetrieveMediaDefinition
QSRRTVMD

1

For more information regarding these APIs, refer to System API reference.

2

For more information regarding these CL commands, refer to System CL Command reference.
You must have *USE authority to the media definition, *EXECUTE authority to the media definition library, and normal save or restore authority for each device you specify in the media definition.

You cannot use a media definition if the save or restore command or API specifies any of the following:

  • Volume identifiers

  • A sequence number

  • A save file

  • An optical file

You cannot use a media definition if your system has been enabled for CD-ROM premastering by using the Handle CD-ROM Premastering State (QlpHandleCDState) API.

 

Parallel format and media definition usage restrictions

  • SAVLIB LIB(*ALLUSR, *IBM, *NONSYS) cannot save data in parallel format. You will receive this error message if you specify a media definition in parallel format.

  • A media definition cannot be used to restore a list of libraries or generic libraries.

 

Parent topic:

Saving to multiple devices to reduce your save window

Related concepts
Saving to multiple devices to reduce your save window

Related information
API finder System CL Command reference BRMS Create Media Definition (QsrCreateMediaDefinition (ILE) or QSRCRTMD (OPM))