CA Dynam for VSE User Guide

Reporting on Disk Files
The SELECT options are described here. For more information about all other
SPACEUSE options and their application, see the chapter "General Reporting—
DYNPRINT."
SELECT Options
FIDEXT
REALLOC
REBLOCK
VOLFID
VTOCSEQ
The SELECT options for SPACEUSE are all sort-order options. Any or all of
them can be used to produce up to five reports from one command. They are:
Files are reported by file-id. Within each file-id, files are reported in order of
the first extent sequence number of an extent in, or overlapping, each real
volid or defined pool space. This is the default option if the SELECT option is
omitted.
Files are reported by descending absolute percentage error in the original
allocation request.
Files are reported by descending number of bytes to be gained by changing to
optimum blocking.
Files are reported by real volid and, within each volume, by file-id. If a file
spans more than one defined pool space on a volume, a line is reported for
each space summarizing the extents in, or overlapping, that space.
Files are reported on in order of VTOC retrieval.
SELECT=ALL prints all of the first four reports, omitting the VTOCSEQ report.
By invoking SPACEUSE with the following command, you can create a report
that you can compare with a DYNSPACE report:
REPORT SPACEUSE SELECT=FIDEXT
Source Code for SPACEUSE Report
The CA Earl source for the SPACEUSE report is the CA Dynam library member
DYNSP.0.
Report Headings
The report headings are generally self-explanatory, but note the following:
• If VOL= is given specifying a generic volid, one output detail line is
generated for each real volume on which a file has extents. On each line,
the computed items are based on the extents of the file residing on the
volume in question.
5–44 User Guide