CBR6430I   OAM {tape sublevel 1 or backup | tape sublevel 2} write request failed for object object-name, collection collection-name in storage group storage-group-name. Object size=object-size KB, {DATACLASS | L2DATACLASS}=data-class-name, {TAPEUNITNAME | L2TAPEUNITNAME}=tape-unit-name, MVS scratch tape threshold=object-threshold-size {KB | MB}. OAM return code=return-code, reason code=reason-code.

Explanation

An attempt to write object object-name, collection collection-name to [tape sublevel 1 or backup | tape sublevel 2] failed because MVS™ dynamic scratch tape allocation for objects greater than object-threshold-size [KB | MB] is disabled for storage group storage-group-name.

A previous [tape sublevel 1 or backup | tape sublevel 2] write request resulted in the allocation of an MVS scratch tape. That write request failed because the volume capacity of the MVS scratch tape allocated was less than the size of the object being written. The MVS scratch tape allocated was also added to storage group storage-group-name even though the object was not written.

If object-threshold-size is followed by a KB, object-threshold-size is in KB and the amount of KB is less than 2GB. If object-threshold-size is followed by an MB, the object-threshold-size shown is in MB because the amount of KB is equal to or greater than 2GB.

The return code return-code and reason code reason-code are internal information that is included in this message for diagnostic purposes only.

System action

OAM fails the write task and continues processing. All future tape [sublevel 1 | sublevel 2] writes to storage group storage-group-name for objects greater than object-size KB that require MVS scratch tape allocation fail until one of the following actions is taken for this storage group:
  • For sublevel 1 or backup tapes,
    • Modify the DATACLASS, or TAPEUNITNAME, or both in CBROAMxx, then restart OAM, or
    • Modify the DATACLASS, or TAPEUNITNAME, or both, using the MODIFY OAM,UPDATE operator command.
  • For sublevel 2 tapes,
    • Modify the L2DATACLASS, or L2TAPEUNITNAME, or both in CBROAMxx, then restart OAM, or
    • Modify the L2DATACLASS, or L2TAPEUNITNAME, or both, using the MODIFY OAM,UPDATE operator command.

The MVS scratch tape allocated, volume volser, is added to storage group storage-group-name and might be selected to satisfy future write requests.

Operator response

Notify the system programmer.

System programmer response

Perform one of the following actions to prevent additional and unnecessary MVS scratch tape allocations for storage group storage-group-name:
  • For sublevel 1 or backup tapes,
    • Modify the DATACLASS or TAPEUNITNAME in CBROAMxx, or both, then restart OAM, or
    • Modify the DATACLASS, or TAPEUNITNAME, or both, using the MODIFY OAM,UPDATE operator command.
  • For sublevel 2 tapes,
    • Modify the L2DATACLASS, or L2TAPEUNITNAME, or both in CBROAMxx, then restart OAM, or
    • Modify the L2DATACLASS, or L2TAPEUNITNAME, or both, using the MODIFY OAM,UPDATE operator command.

See CBR6419I for the approximate capacity of each tape media type.

Programmer response

None.

Module

None.

Source

Object Access Method (OAM)

Routing Code

2,3,5

Descriptor Code

4

Parent topic: CBR messages