W dniu 12.03.2025 o 16:49, Jeremy Nicoll pisze:
On Tue, 11 Mar 2025, at 19:53, Radoslaw Skorupka wrote:
W dniu 07.03.2025 o 18:49, Jeremy Nicoll pisze:
If this "tech LPAR" is specifcially limited to emergency use that might be
ok, but where I worked the sysprog LPARs had no access to any of the
disks used by live systems - so I can't see how one could use such an
LPAR to fix anything.
It is up to you how the tech LPAR is set up. Including I/O definition.
NO, it wasn't up to us. I worked for a bank. No auditor would allow
a systems programming test system to have ANY access to live system
disks.
We did (obviously) have access to the sysprog lpars' volumes from
elsewhere, so we could maintain the systems on them.
Yes, it was up to you. I've been working for banks since 1995 and it was
up to me to explain the auditor the need for emergency system. Note:
emergency, not "test". I wrote "tech", but it is not "test". And yes -
no testing activities were allowed there. No testers.
And - again - no access to bank data. Just system disks. How can it
affect production? Same way as big red switch on the CPC cabinet or HMC
"Deactivate" icon, etc. And - you have to trust me or not - it was
satisfactory explanation.
Last, but not least: what about offline system? You could not have
online system with access to prod's PARMLIB (etc.). However the access
from offline system was OK, yes? So, your sysprog could IPL the system
and do the things...
It doesn't seem reasonable.
--
Radoslaw Skorupka
Lodz, Poland
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