DASMF DD statement specifies the SMF records written during the outage by the required LPAR. Mandatory.
The records can be provided to the utility by using a sequential file (either a single file or a concatenation of multiple files) containing the SMF data or by using the SUBSYS=(LOGR,IFASEXIT) interface to the SMF log streams.
Note: When log stream is to be allocated to DASMF, use the following JCL to allocate it:
//DASMF DD DSNAME=
logstream.name,
// LRECL=32756,RECFM=VB,
// BLKSIZE=32760,
// SUBSYS=(LOGR,IFASEXIT)
There is no problem of over-supplying SMF records (for example, including 5 hours of SMF when the outage lasted only 25 minutes). Events are selected for the period specified using the INCLTIME statement.
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