CA Dynam for VSE User Guide

Reporting on Disk Files
• If VOL= is given specifying a pool-id, one output detail line is generated
for each pool space that is on a real volume on which a file has extents. If
there is more than one pool space defined on one real volume, a detail line
will appear for each of them, causing some items to be repeated. The
contribution added into the total space used in the pool, however, is
adjusted to result in correct totals for each pool space and for the pool as
a whole. Files having no extents that overlap the pool space being
processed, are not reported for that pool space.
ALLOCATION INFO
BLOCKSIZE OPT.
EXTENTS: 1ST SQ#
EXTENTS: # on VOL
The computations for this group are only attempted for files that are complete
on the real volume in question and which have had the original allocation
request information recorded in the format-1 record. (This is true for files
created under CA Dynam/D control.)
This is computed by calculating the largest blocksize that will fit on a track or
control interval for the device in question and is consistent with the file's
record length.
This is the extent sequence number for the first extent on the real volume
being reported on.
This is the number of extents that are on the real volume for the file being
reported on.
FILE IDENTIFICATION, PREFIX FLAGS
The first flag (#) is displayed for any file that has one or more extents that
overlap the pool space in question. Where there are multiple pool spaces
defined on a single volume, this flag should not be trusted, because it can be
raised by extents that are entirely contained in the other pool spaces on the
volume.
The second flag can have the following values:
• - if the format-1 record doesn't contain the CA Dynam/D system ID.
Continuations of files beyond the first real volume cannot have this ID set
even though they were created under CA Dynam/D control, and so can
have the - prefix set.
• < if the extent sequence number of the first extent for this volume or pool
space is not 0. This can occur if the first extent was created with an
EXTENT statement containing a nonzero sequence number (allowed by
VSE). Otherwise it is a correct indication that the file has prior extents on
another real volume.
• > if the format-1 record complete on this volume flag is not set. This can
occur if the file was never closed, and also for certain system utility or
PIOCS files. Otherwise it is a correct indication that the file has subsequent
extents on another real volume.
• * if the conditions for both > and < are satisfied.
Chapter 5: Supporting Disk File Management 5–45