DFS3256I OPEN FAILED ON ddname - DURING ONLINE LOG READ (xx)


or

OPEN/ALLOCATION FAILED ON ddname


or

OPEN FAILED ON ddname - DD CARD SPECIFICATION ERROR

Explanation

The log data set specified on the ddname could not be opened or allocated for logging, because the DD statement was not correctly specified or because the preallocated data set had inconsistent DCB attributes.

The first form of this message applies to log write operations for either an online log data set (OLDS), or a write-ahead data set (WADS).

The second form of this message is issued under these conditions:
  • When an OLDS is opened that has a different block size (BLKSIZE) from the value displayed in message DFS2207I.
  • When a write-ahead data set (WADS) is opened which does not have sufficient space allocated.
  • When the RECFM is not VB.
  • When an extended format OLDS was found and this release of IMS cannot use an extended format OLDS.

The third form of the message appears when the GETMAIN storage is not available for the OSAM DCB required for a log read operation. It is also issued when the OSAM OPEN function fails. When the GETMAIN storage is not available, xx contains a value of x'FF'. When the OSAM OPEN function fails, xx is the return code value returned by the OSAM OPEN function.

System action

If the error occurred while opening a WADS and one or more WADS was still available, IMS continues processing. If no WADS was available, message DFS3262I is issued and IMS continues processing.

If the error occurred while opening an OLDS and 3 or more OLDS are still available, IMS continues processing. If 2 or less OLDS are available, message DFS3260I is issued. See the system action for message DFS3260I.

Operator response

No action is required.

Programmer response

No action is required.