food for thought: while the RMF III data stores are internally
compressed, there appears to be some opportunity for reducing the
archived data set's physical size. In testing a sample data store,
REPRO of it to a SMS generic compression file saw a reduction of 38%
and tailored compression saw a reduction of 55%. Testing of zEDC
remains to be done, but from past experience, I would guess the
compression to be 70%-80%.
Note that these would have to be restored to VSAM format for the RMF
III ISPF dialog to work against them. Inventorying the contents of
either the VSAM or non-VSAM format can be done by processing the
first physical record in the file (DSIG3 - Data Set Index, not
compressed) which contains the from/to date/time stamps of the
MINTIME sample sets within the data store. If need be, following
that will be the service policy (un-compressed SVPG3 data structure)
in effect when recording started to the data store.
Michael
At 04:24 AM 1/3/2022, Mike Shorkend wrote:
If it is RMF III data you are looking for then I keep about a week of
data online. The VSAM files get backed up daily and kept for another month.
They can be restored and added to the RMF III collector (aka RMFGAT) for
viewing . As reflectors mentioned, you can use the ISPF dialog to view the
data, but lately I have been using the RMF web portal which displays much
more information out of the box.
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