>In an idle moment a few months ago, I remembered using the above on a 360/50. >It looked like an 029 in intensive care, with a lot of cables emanating from >the box, all connected to various points in the processor.
>Mike Kerford-Byrnes Are you sure you aren't talking about the Systems Measurement Instrument (SMI)? That was the only IBM hardware monitor available during the S360 era as far as I know. It had a number of probes that you attached to various points in the s/360. The SMI had a plug panel board that you wired up to get the data from the probes into accumulators. Once the newer s/370 boxes got a service processor, the hardware instrumentation became part of the service processor, and the SMI became obsolete. The service processor based instrumentation remained as an IBM lab tool until fairly recently when it was made available to customers, and documented. G. Tom Russell “Stay calm. Be brave. Wait for the signs” — Jasper FriendlyBear “… and remember to leave good news alone.” — Gracie HeavyHand ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
