On Wed, 13 Dec 2006 13:50:30 -0500, Tim Hare <[EMAIL PROTECTED]> wrote:
>>HSC/SMC get involved at allocation so they are out of the picture at >>that point. All HSC knows is a tape was mounted so it marks it >>non-scratch in the CDS to preserve integrity. HSC would probably need >>to add hooks into the system like other tape management software does >>to do more. > >I know SMC influences allocation, however HSC is involved at other points. >When installing you're told to make sure that the HSC subsystem follows >TMS in the IEFSSNxx definitions - that's so that HSC sees messages _after_ >CA-1 has dealt with them. I believe this is HSC's "hook" into what's >happening with the tapes. > You might call it semantics, but that isn't a "hook". The software is "listening" on a documented interface (SSI). And these days (since HSC 5.0) it's not the order where HSC is defined that matters, it's SMC since SMC does the tape allocation. The order should be TMS/TLMS, SMC, then MIA if you run MIM allocation. -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - GITO mailto:[EMAIL PROTECTED] z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/ Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
