Jerry:

The CE needs to take the system to a restricted state, and will most likely
power down the system, that's the reason for needing the console. That's
to be sure the cache is cleared before the batteries are changed. Besides
that I'll bet that card controls all the DASD (or at least the load source)
so, when the card is pulled to change the battery, the system will go down
hard anyway if it's not brought down nicely.

Yes, a console is a requirement.

DEGRADED most likely means the cache is turned off due to the days count on
the batteries. System runs but very slowly.
--
Jim Oberholtzer
Agile Technology Architects


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jerry
Adams
Sent: Thursday, August 24, 2017 4:15 PM
To: 'Midrange Systems Technical Discussion'
Subject: Cache Battery

I am not going into all of the details, but we have a Model 520 ()Power 5)
sitting in a remote site. I check it weekly for errors and accessibility
(STRSST, and such).



There's a message that the cache battery needs to be changed. Actually that
came up weeks ago, and they still have not changed it. But today the
WRKDSKSTS panel (F11) showed all disks as "Degraded". I don't know what
that means; the system is RAID5.



Anyway, they don't have a console there so they are telling me (supposedly
from the IBM tech) that they have to set up a LAN console before they can
change the battery.



Is that true? I mean, it's been years and I've been semi-retired for nearly
4 years, but my recollection is that the system has to be powered off, and
powered back on. Do they really need a system console for this?



Jerry C. Adams

Rehab is for quitters.

IBM i Programmer/Analyst

--

NMM&D

615-832-2730



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