z/OS Unix System Services imposes a 1024 name length limit. A few directories exceed this and is corrected by CD brfore re-extracting the affected files.
On Thu, Mar 27, 2025 at 6:20 AM Thomas Berg < [email protected]> wrote: > How about UNIX/Linux name standard limits? What lengths are permitted? > (And what hex code ranges etc?) > > Are there any consensus? > > > Thomas Berg > > Mundus Vult Decipi > > Den tors 27 mars 2025 01:22Seymour J Metz <[email protected]> skrev: > > > Sigma? You don't have to go as far as SDS; IBM had that too, in TSS. > > > > -- > > Shmuel (Seymour J.) Metz > > http://mason.gmu.edu/~smetz3 > > עַם יִשְׂרָאֵל חַי > > נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר > > > > > > > > ________________________________________ > > From: IBM Mainframe Discussion List on behalf of Paul Gilmartin > > Sent: Wednesday, March 26, 2025 6:05 PM > > To: [email protected] > > Subject: Re: Expand DSN names (WAS : Java saved IBM Z?!) > > > > > > External Message: Use Caution > > > > > > On Wed, 26 Mar 2025 21:25:01 +0000, Pew, Curtis G wrote: > > > ... > > >Things that can already exploit zFS would have no trouble exploiting > > this. Also, programs that use QSAM or BSAM can in many cases run just > fine > > using Unix files instead of MVS datasets. IBM should make that even > easier, > > and provide more ways for other things to exploit Unix directories and > > files, instead of depending on a 60 year old storage architecture that > > seems to clearly have been a mistake from the start. > > > > > Moving the search to the control unit was an idea clever for > > its time but which gained little traction. > > > > A co-worker once told me of a Sigma system which kept sourde > > files in a sort of KSDS, keyed by the statement number. Records > > could be added, deleted, or edited without rewriting the entire > > file. Another innovation dead end. > > > > A UNIX antiquarian told me that within his memory directory entries > > were 16 bytes: 14 for the filename and 16 bits for the I-number. > > Both have been outgrown, but with little pain because those > > numbers were parameters in header files or wrapped in system > > functions. > > > > I understand that a MACLIB member contains equates, 44 for DSN > > length and 8 for member length. If developers had been faithful > > to the paradigm, it would be possible to increase those numbers > > and assemble an installable OS with larger limits. > > > > -- > > gil > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
