Data in columns 73 through 80 is ignored. If data is specified
beyond column 72, it is ignored and an error in a following tag may
be indicated.
File definition control tags may contain comments. Comments start
with <!-- (hex 4C5A6060) and end with --> (hex
60606E). The first --> encountered after the initial <!-- will end the comment. A comment may appear between a start-tag
and its matching end-tag, but never within a tag.
The space allocation for an archived data set is stored in the
File Attribute File in terms of AVGREC regardless of how the data
set was originally allocated. GIMZIP converts the current allocation
information for a data set (as obtained from its DSCBs) into record
type allocation information using AVGREC (usually set to U,
although K could be used for extremely large data sets) and
an average record length equal to the data set block size. The data
set allocated using this information when an archive is retrieved
by GIMUNZIP will approximately equal in size (number of bytes) the
original data set, but will not use the same allocation units as the
original data set that was archived by GIMZIP.