On Wed, 26 Jul 2023 17:50:40 -0500, Wendell Lovewell wrote: >Thanks Bill, that's very helpful. > >Please let me see if I have this straight yet: > >- If there is a format-8 DSCB, there will be a format-9 DSCB. > >- If there are > 3 extents (which are handled by the format-1) but < 133 >extents, the format-9 record's DS9PTRDS will -> the first format-3 record.
Handled by the format-8, although the format-1 names are used for format-8 fields. > >- For each 13 extents (after the first 3), an additional format-3 record will >be created. > The CCHHR of the n+1 format-3 record will be in the "n" format-3's > DS3PTRDS. (Is it also in the "n" DS9F3 slot?) That seems to imply that at least one format-3 "n" exists already, and an additional format-3 ("n+1") is to be added, so perhaps you mean "after the first 16" instead of "after the first 3". Assuming at least one format-3 "n" already exists, the CCHHR for the new "n+1" format-3 would be placed in the "n+1" DS9F3 slot (unless all 10 slots are taken). The CCHHR of the first format-3 is in the first DS9F3 slot and in DS9PTRDS. I can't confirm that the DS3PTRDS of the first or "n" format-3 points to the second or "n+1" format-3, but it seems likely since that's the way format-3 DSCBs work for non-EAV data sets with more than 16 extents. > >- There will not be an additional format-9 (subtype 1) record unless there are >more than 10 format-3 records. > If there are > 133 extents, the DS9PTRDS in the first format-9 record will > point to the second format-9 record. Otherwise it will point to the first > format-3 record? > Everything I haven't comment on looks correct to me. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN