Hi Timothy Thanks for your response - it highlights two things for us 1. We were woefully ignorant about the history and current 'packaging' of zHPF - thank you for your explanation 2. I was not specific enough in my original query. You say that zHPF should work automagically with BSAM, etc. Apologies for my oversight here, but what we're looking for is information on creating a channel program that uses TCWs as opposed to CCWs (our software generates its own channel programs).
Regards Sean On Tue, 26 Oct 2021 at 07:31, Timothy Sipples <[email protected]> wrote: > Sean Gleann wrote: > >Also detailed documentation for z/HPF is evading all our searches > >(because it is a chargeable extra, perhaps?) > > I have a partial answer, to start.... > > To my knowledge zHPF is no longer a separately chargeable extra, not for > several years with IBM gear. My recollection is that zHPF became part of > the base FICON attachment feature starting with the 2016 introduction of > the IBM DS8880 series equipment. If a SAN switch vendor wants/wanted to > charge something I couldn't say, but SAN switches are technically > optional. > > Also to my knowledge there was never anything chargeable on the IBM Z > server side for zHPF. The base z/OS operating system included support as a > standard feature (maybe with PTFs depending on the release level), and the > standard FICON Express features included the necessary hardware support > all the way back to FICON Express2. Server support goes back to the IBM > z10 models. Maybe a firmware/microcode update was required (likely for > z10), but all that should be ancient history by now. > > Are you thinking of IBM zHyperLink(s) perhaps? zHyperLink is separately > chargeable in the sense that it uses dedicated zHyperLink features with > their own ports (on both ends) and separate/additional cables. > > You mentioned "files," so I assume you shouldn't have anything in > particular to do to exploit zHPF. If the volume (EAV in this case) is zHPF > enabled then DFSMS Basic Access Methods (BSAM, QSAM, BPAM) should > "automagically" work. > > - - - - - - - - - - > Timothy Sipples > I.T. Architect Executive > Digital Asset & Other Industry Solutions > IBM Z & LinuxONE > - - - - - - - - - - > E-Mail: [email protected] > > > > ---------------------------------------------------------------------- > 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
