DSNB404I THRESHOLDS — VP SEQUENTIAL = vpseq SP SEQUENTIAL = spseq DEFERRED WRITE = dwt VERTICAL DEFERRED WRT = dwv1,dwv2 PARALLEL SEQUENTIAL = vppseqt ASSISTING PARALLEL SEQT = vpxpseqt Start of change VP PCLOSET = vpclosetEnd of change

Explanation

This message is a section of output from the DISPLAY BUFFERPOOL command, which is part of message DSNB401I.

DSNB404I: Threshold information

The information about allocation status is followed by information about the user-modifiable thresholds for the buffer pool.

DSNB404I - THRESHOLDS -
             VP SEQUENTIAL             = vpseq
             SP SEQUENTIAL             = spseq
             DEFERRED WRITE            = dwt
             VERTICAL DEFERRED WRT     = dwv1,dwv2
             PARALLEL SEQUENTIAL       = vppseqt
             ASSISTING PARALLEL SEQT   = vpxpseqt
             VP PCLOSET                = vpcloset
VP SEQUENTIAL = vpseq
The sequential steal threshold for the virtual pool, expressed as a percentage of the total buffer pool size.
SP SEQUENTIAL = spseq
The sequential steal threshold for the simulated pool, expressed as a percentage of the total simulated buffer pool size.
DEFERRED WRITE = dwt
The free-buffer deferred write threshold for the buffer pool, expressed as a percentage of the total buffer pool size.
VERTICAL DEFERRED WRT = dwv1
The vertical deferred write threshold for the buffer pool, expressed as a percentage of the total buffer pool size.
dwv2
The vertical deferred write threshold for the buffer pool, expressed as an absolute number of buffers. dwv2 is used to determine the threshold only if dwv1 is 0 and dwv2 is non-zero. Otherwise, dwv1 is used to determine the threshold.
PARALLEL SEQUENTIAL = vppseqt
The sequential threshold for parallel query processing, expressed as a percentage of the virtual sequential steal threshold. When the threshold is set to 0, parallel query processing is not supported.
ASSISTING PARALLEL SEQT = vpxpseqt (deprecated)
Sysplex query parallelism is no longer supported. This field is deprecated.
Start of changeVP PCLOSET = vpclosetEnd of change
Start of changeThe pseudo-close interval in effect for the buffer pool. It can be the VPCLOSET value option that was specified in an ALTER BUFFERPOOL command or the PCLOSET subsystem parameter value. If VPCLOSET option was not used for this buffer pool, or it was set to 0, this value displays the PCLOSET value.End of change