Urban legend or false memory. But in the early 1980s, I was told that if you started a proc that did not exist, JES2 would open and close each proclib in the concatenation. In fact, I was told, and if I remember correctly, I was able to backup a proclib that ran out of directory blocks, delete the library, re-allocate the library, restore the library, issue a start on a non-existent proc, and all was good.
Sent with Proton Mail secure email. On Wednesday, June 12th, 2024 at 8:12 AM, Lennie Bradshaw <[email protected]> wrote: > As far as I know JES2 holds proclibs open normally. There may be a way to get > it to close and re-open them. > JES2 runs with the NDSI bit set in the PPT. Hence it does not issue ENQs for > any datasets it allocates. > Lennie > > -----Original Message----- > From: IBM Mainframe Discussion List [email protected] On Behalf Of > Paul Gilmartin > > Sent: 12 June 2024 12:59 > To: [email protected] > Subject: Re: PDS compress and PROCLIB > > On Wed, 12 Jun 2024 08:55:56 +0000, Lennie Bradshaw wrote: > > > I believe JES2 read the proclibs without data integrity (i.e. no ENQs are > > issued for the libraries). ... > > Why!? Is PDSE a solution? IEB COPY with DISP=SHR? > > We had a developer-facing local PROCLIB catenand. I routinely updated a > member in background using ISPF EDIT ENQs. > Once I found another developer's content in "my" member. She had courteously > signed it. She explained that she had updated her member from a test system > sharing DASD. Admin explained that MIM had crashed on that system at that > time. > > MIM isn't fail-safe. But the price of fail-safe might be inability to IPL > before MIM activates. > > -- > 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
