--- Bruce Black <[EMAIL PROTECTED]> wrote: > > The Encryption Facility can use HW-based > compression before > > encryption, all on the server. (One has to > specify its use because > > there is no way to uncompress the data on a non-z > server.) > > ??? the hardware compression (CPACF) has been > available on all systems > for many years and generations, long before zSeries. > I am sure it is > available on any system which is still in use. Even > if it wasn't there, > the op system contains software emulation (at a CPU > price, of course). > You are incorrect. CPACF is only available on the z990 and newer hardware (z890, z9, etc). On the z900, z800 and at least one generation of 9672, CCF was available. This is restricted to the first two CPUs in the processer complex. The only way that I have found after several hours/days of digging to use the CCF hardware is through IBM's ICSF software. The instructions necessary for anyone else to use the CCF was not documented by IBM that I could find. In fact several IBM technote papers also state this explictly.
Lloyd ---------------------------------------------------------------------- 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
