On Mon, 7 Apr 2014 09:53:03 -0500, John McKown wrote: > >Hum, I don't see the need to downgrade. From what I understand, when a user >does an ISPF editor SAVE command, ISPF does: > >ENQ SPFEDIT dsn OLD >write out to PDS >STOW to update the PDS directory >DEQ SPFEDIT dsn > >That is, ISPF does not have a SHR enqueue on the DSN alone except while >doing a SAVE. > This provides little or no protection against batch jobs' updating the PDS and interleaving member data. Be careful. JWG's comments about PDSE noted.
I use LM services for background updates of PDS. (And once was caught by a MIM failure.) Soon, it may be time for a(nother) rant about the difficulty of LMCOPY from a UNIX file to a PDS member. The best I can do is first copy it to a temp DS (or SYSCALL readfile, then LMPUT in a loop). -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
