StorageTek 6 Performance Log Reblocker Utility, Syntax CMS Statement, spoolid, Parameters, fname

Performance Log Reblocker

Performance Log Reblocker Utility

The Performance Log Reblocker utility is used by sites sharing an ACS between MVS and VM hosts. The utility is used to reformat the VM performance log data to a common format similar to that of the MVS/SMF data. This data is then used as input for the Activities Report utility. The Performance Log Reblocker utility is required to reconstruct the original-image SMF data; different versions are provided to execute in the CMS and MVS environments.

This utility prepares the generated performance log (SMF data) for use by the Activities Report utility.

SMF records passed to the SCP (see the glossary for a definition of SCP) are variable in length and can be up to 32K bytes long. The SCP breaks these records into sections that fit in a VM punch spool file, and passes reblocking information with each segment.

The CMS version takes SCP performance log output (without any header/trailer data) and reads it into a CMS file without altering the internal format of the records. The CMS version of the Activities Report utility (SLUACTV EXEC) reconstructs the original SMF record images during its own execution.

The MVS version reads the SCP performance log data and creates data set records reblocked into the original SMF record format and length. Then, as specified by the PERFJCL trailer data, the reblocked SMF data optionally may be merged with SMF data created on the MVS system.

Syntax (CMS Statement)

Performance Log Reblocker utility

SLUPERF	spoolid
	SLUPERF	(APPend
	fname
		PERFLOG
		fname
		A2
		fmode
Parameters

spoolid

the VM spoolid of a punch file in the caller’s virtual reader. This parameter is required.

fname

the CMS filename of the output file. The default is SLUPERF.

ftype

the CMS filetype of the output file. The default is PERFLOG.

Chapter 4. Utility Functions 263

1st ed., 6/30/04 - 312579601