On Monday, 12/07/2009 at 01:17 EST, "Gentry, Stephen" <stephen.gen...@lafayettelife.com> wrote: > I?m trying to determine if a backup utility is using CPACF. The utility says > it is, but CPU utilization implies, to me, that it isn?t. > > The results I get when I issue a QUERY CRYPTO command: > q crypto > Crypto Adjunct Processor Instructions are not installed > Ready;
This says that the CPU Cryptographic Assist (Crypto+MSA) feature is not, in fact, active in the LPAR. > Are there any commands that I can issue that will for sure tell me if CPACF is > being recognized by VM? You already found it: Query Crypto > We have feature installed/turned on on our z9 based on a feature code. >From this I infer that you have not re-IPLed z/VM since you activated the feature code. > A backup that normally takes 30 minutes, took 13 hours in a test. CPU > utilization stayed about 90% for the duration of the backup. > > VM release is 5.4 and current on maintenance. Z9 is a 2096-S01. If you want to find out if a guest is using the CPACF instructions, ask the guest. It may be reporting its intent in startup messages. Alternatively, you can use brute force and trace the CIPHER MESSAGE, etc. instruction opcodes to see if the guest is issuing them. Alan Altmark z/VM Development IBM Endicott
