On Thu, Jun 29, 2017 at 12:07 PM, Paul Gilmartin < [email protected]> wrote:
> On Thu, 29 Jun 2017 11:44:18 -0500, Elardus Engelbrecht wrote: > > > >Or what are you using to determine that an id is 'inactive'? > > > Are entries in SYS1.BRODCAST timestamped so they could be aged out? > No. > > What was the original design rationale for using a common SYS!.BRODCAST > rather than individual &PREFIX.BRODCASTs? Allocation/OPEN/CLOSE > overhead? ENQ contention? Space/VTOC constraint? Other? > This originated back is MVT days. MVT did not really have an API for dynamic allocation. The data set was "fake opened" (i.e. code other than OPEN found the DSN & extents, and built an "open" DCB and associated DEB.) The DCB was in common storage so that the SEND command could just write to the DSN using it. Much like what CA-1 does with the TMC. > > UNIX facilities could be your friend here, even as UNIX batch jobs simply > append their logs to the user's mbox. > > -- gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- Veni, Vidi, VISA: I came, I saw, I did a little shopping. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
