RE: Cache battery questions

We had the batteries in both of our 520's replaced on Monday. The system had to be powered down. Don't know why, but that's what the CE said his instructions said.

At least the 520's batteries are a lot easier to get at than the 720 we used to run. Those sat inside a cage in the back so the whole box had to basically be dismantled. The 520 is just a pull out on the front of the system so the only panel that has to be jettisoned is the front panel (and the door).

The whole operation, including power down and power up, took less than 30 minutes per box.

Jerry C. Adams
IBM System i Programmer/Analyst
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B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John McKee
Sent: Wednesday, April 15, 2009 2:14 PM
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Cache battery questions

I was just curious as to the size of the thing.

Word went out last week that the system at work would be down for cache
battery
replacement. I remember reading where users had replaced it and also where CE
had to muscle it as it had enlarged. Which just clouds things more - as why
would a 520 need to be shut down if it can be replaced concurrent?
Data safety
maybe - like just in case something nasty happens?

John McKee

Quoting Chuck Lewis <chuck.lewis@xxxxxxxxxxxxxxxxx>:

Should have posted this yesterday John and I could have taken a picture
of the two we replaced last night :-)

And yes it would be user replaceable but you need to follow directions
carefully. Ours were DEAD but the last time they were not and cache had
to be flushed. There is stuff to do that in Service Tools but MAN was it
cryptic (we are on V5R2 I hear it's a lot better on latter releases and
also they can be done concurrent..

So I've not been much help...

Chuck

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John McKee
Sent: Wednesday, April 15, 2009 2:35 PM
To: Midrange Systems Technical Discussion
Subject: Cache battery questions

Just curious:

1) Is there a picture of the cache battery somewhere?
2) Is the cache battery potentially user replaceable?

John McKee
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