I messed about with this back in the day; it worked well.
http://gsf-soft.com/Documents/ISX390.html
Subject: Re: Use of zCX
From: "PINION, RICHARD W."
Date: Thu, 21 Apr 2022 18:52:08 +
Does anybody hear remember a software product from a Russian company that
allowed one to run Linux as
an
If I recall correctly HSM tape support was ~1983, as per:
https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/1/897/ENUS283-141/index.html_locale=en
"Hierarchical Storage Manager (5740-XRB) support to utilize the tape OPEN/EOV
exits for volume selection and volume verification"
Basically DFSMShsm is an EDM (External Data Manager) and manages its own tapes
and needs to communicate with the TMS (Tape Management Subsystem), in this case
DFSMSrmm that the tape has changed status, in this case from private to
scratch. There's a nice summary @
For the zEC12, each FCP channel (CHPID) can support up to 480 subchannels,
where each subchannel represents a communication path between software and the
FCP channel. Each FCP channel can support up to 480 QDIO queue pairs. This
allows each FCP channel to be shared among 480 operating system
If you add an LPAR, you typically increase the number of devices by 100%, and
if you add 2 LPAR’s, then by 200% and so on. So, if you have 64 devices
defined on your FCP channel, 1 LPAR is 64 devices, 20 LPAR’s is 1280 devices.
In this instance, your limit is 480 devices, as per the CBDA291I
I worked with a local of customer who faced the same challenge. We
investigated the market and it really came down to 2 options, previously
mentioned. ESCON-FICON converters, or replace the Visara nnL (11L-20L-22L-25L)
SCON that doesn’t support FICON, with the CCA-3074, with native FICON
