z/VSE SOD: zHPF support
Ingolf24 120000DRN3 Visits (8918)
Last week we announced some new functions in the Statement of general direction (SOD) of the z/VS
Let's start with a hardware exploitation item - the high performance FICON for z Systems (zHPF) protocol.
We plan to implement the zHPF support in the following way:
z/VSE will support ECKD devices only. zHPF support can be activated and deactivated any time after the z/VSE system is IPLed. We will provide new commands for zHPF. That is no re-IPL is required to use this function. The z/VSE implementation is transparent to applications, because channel commands are translated to "zHPF commands" at low level I/O interfaces. z/VSE translates a subset of the channel commands. If a "zHPF command" fails, z/VSE retries it as channel command. z/VSE supports zHPF in LPAR as well as in z/VM guests. zHPF may improve I/O performance, but that highly depends on your workload characteristics.
Now the bad news ;-) - you have to wait a bit until we will provide it. It's still in development.
Please let me know, if you want to be a beta tester for that support.