Re: 9406-720 Internal Battery Self Test

IBM has a program out there that I have used for years. It Does the job (
UPSMONITOR ). This discuss was about a 9406-720. That box went on the market
in 1999 I believe. Today's systems do not have internal batteries except on
the disk controller cards with write Cache.

It is my understanding that when the system timer runs out and no other
program is taking care of things... the box goes down *IMMED which is better
than pulling the plug, but not as nice as it could be. I use the rule of
thumb, if the lights are out for 5 minutes, they are going to be out for
awhile. Unless you have a generator, it is time to start shutting things
down.

I'll try and find the URL to IBM's 'sample program' and post it in case
anyone want to have a peek at it.

On Fri, Apr 1, 2011 at 12:59 PM, Jack Kingsley <iseriesflorida@xxxxxxxxx>wrote:

After reading this, is anyone basing the findings on this to fine tuning a
UPS delay program(if one is in use), would it matter or not.

On Fri, Apr 1, 2011 at 3:26 PM, Vern Hamberg <vhamberg@xxxxxxxxxxx> wrote:

And remember, if you got the Powerware through your IBM BP, it's a
5-year warranty - saved our butts at another place I worked.

Vern

On 4/1/2011 12:29 PM, DrFranken wrote:

If you are talking about the batteries INSIDE the 9406-720 itself,

those

will run for 7 seconds and then shutdown, even if the batteries are
spanking new. The remainder of the battery life is reserved to hold the
contents of the system's main memory up so that it can be copied to

disk

during the next (abormal) IPL.

As I recall the Eaton Powerware unit doesn't have a specific battery
test. Even if it did, these tests are a 'best guess' based on a number
of seconds on battery.

If you want a full length battery test follow this procedure:
Bring the system down to restricted condition (ENDSYS) and let it
sit there for a few minutes. This will get the disk caches mostly
cleared out.
Note the value of QUPSDLYTIM and then change it to 99999.
Now pull the power to the Eaton and count the time it takes to

run

out of battery. It's your call if you don't actually let it fail and
plug it back in at say 10% of battery but to know how long you really
have it's gotta die.
Once the Eaton unit powers off make sure the system does hang on
for 6 or 7 seconds to at least know the internal 720 batteries are not
totally dead.
Plug the UPS back in and let it charge for 30 minutes or more to
put some life back into the batteries.
IPL, and remember to change QYPSDLYTIM back to it's previous

setting.

- Larry "DrFranken" Bolhuis.

On 4/1/2011 10:57 AM, Martin Spencer wrote:

Hi All,

Is there a method to test the internal batteries on a 9406-720 without
taking it off the UPS and running it via the internal batteries, or,

do

we

need to power down the UPS while the 720 is running and wait for it to

crash

out?

We need to do some failure testing on some systems that are connected

to

UPS's but we are unsure of how healthy the UPS's are (they are Eton
Powerware 9325s, as specified by IBMs Econfig, and are 4 years old).

What we need to find out is should there be a power failure how long

can

the 720 continue to run once the UPS battery has depleted. Obviously

the

UPS

are set to send the signal to the AS/400 to begin a PWRDWN IMMED as

soon

as

there is a power disruption.

Your thoughts, as always, are appreciated.

Tin.

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