Bill Bishop wrote: >One issue that you may encounter with going to a new storage >system on a z9 processor is the speed of the ficon cards and >whether the new unit can z9 cards. I am not sure the new >Hitachi's can work with 4GB ficon.
While Radoslaw Skorupka clarified that it's possible to worry less about link speeds when there's a switch/director in the mix, I should point out that the IBM z9 machine might not be using 4 Gb/s FICON with its storage device. FICON4 was only the maximum configurable storage I/O attachment. Other maximums were possible. The z9 generation of IBM Z machines also supported 1 Gb/s and 2 Gb/s FICON and/or ESCON, even as maximums. For direct storage attachment it's important to clarify which link type(s) and speed(s) are actually operating. I should also point out that the IBM z9 machines have passed IBM End of Service, and so have all z/OS releases (2.1 and prior) that the IBM z9 machine supported. The storage device is by no means unique in this respect. IBM is still offering a Service Extension for z/OS 2.1, available for an additional monthly fee (minimum 3 months) through September 30, 2021. Service extensions may also be available for other software. I agree with the other posters suggesting serious, quick investigation of other options involving "rebasing" these critical applications on systems and middleware that are aligned with their importance. Many people are able to help. - - - - - - - - - - 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
