DWW0655S

Log dddd has an invalid BB setting. For first block in a sequence the only valid settings are X'00' and X'01'. The actual setting is xx.

Explanation

Invalid BB settings were detected while reading a queued sequential access method (QSAM) copy of an MVS log stream. The settings could be invalid for one of these reasons:
  1. The flag bits have a value that should never appear.
  2. A block that was expected to begin a sequence of QSAM blocks forming a log stream block does not have the flag value of X'00' or X'01'.
  3. A block that was expected to be part of a split log stream block did not have the flag value X'02' or X'03'.
Here are the explanations of the hex codes:
00 The MVS log stream block was not split.
01 The MVS log stream was split. Subsequent QSAM blocks are part of the same MVS log stream block.
02 More QSAM blocks that are part of the same MVS log stream block exist.
03 This is the last QSAM block of the MVS log stream block.

System action

CICS® VR processing stops.

User response

Make another copy of the MVS log stream using a different block size. If the problem persists, contact your local IBM® Support Center.