Re: Replacing the cache memory battery on the AS/400 - a warning

[Philipp Rusch <Philipp.Rusch@xxxxxxxxxxxx>]

(...)
And the system slows down incredibly, believe me, you shure
will notice that something is wrong.
During a normal PWRDWNSYS there is an SRC D600 5501
which says that the cache data has been flushed to disk so that
it's now safe to turn off the power.
If the system is stuck before, it hasn't been succesful to do so ...

Regards from Germany, Philipp Rusch

Kirk Goins schrieb:

> The system does it automagically...
>
> __________________________________________________
> Kirk Goins
> IBM Certified iSeries Technical Solutions Expert
> Pacific Information Systems - An IBM Premier Business Partner
> 503-674-2985           kirkg@pacinfosys.com
>
> -----Original Message-----
> From: York, Albert [mailto:albert.york@nissan-usa.com]
> Sent: Thursday, July 25, 2002 8:18 AM
> To: 'midrange-l@midrange.com'
> Subject: RE: Replacing the cache memory battery on the AS/400 - a
> warning
>
> Is there a way to turn off write caching? When we have battery problems that
> would be the first thing I would do.
>
> That's an easy one - Airplane. I watched it with my kids just the other day.
> They got a big kick out of the "drinking problem".
>
> Albert
>
>         -----Original Message-----
>         From:   Walden H. Leverich [SMTP:WaldenL@TechSoftInc.com]
>         Sent:   Thursday, July 25, 2002 8:07 AM
>         To:     'midrange-l@midrange.com'
>         Subject:        RE: Replacing the cache memory battery on the AS/400
> - a warning
>
>         >From: Steve Richter [mailto:srichter@autocoder.com]
>         >And maybe the refered to cache memory is the memory in the disk
> controllers
>         ?
>
>         I would assume so. The battery protects the write cache on the drive
>         controllers on an iSeries just like it does on a PC. If main power
> goes down
>         the drive controller hangs onto its write cache until power is
> restored and
>         the controller can push that data onto the drive. Anyone who has
> write
>         caching turned on w/o battery backup cache is asking for problems.
> The
>         operating system thinks the data has been written to disk, but in
> reality it
>         hasn't.
>
>         >Shirley the battery does...
>
>         "And stop calling me Shirley!" -- name the movie
>
>         -Walden
>
>         ------------
>         Walden H Leverich III
>         President
>         Tech Software
>         (516) 627-3800 x11
>         (208) 692-3308 eFax
>         WaldenL@TechSoftInc.com
>         http://www.TechSoftInc.com
>
>         Quiquid latine dictum sit altum viditur.
>         (Whatever is said in Latin seems profound.)
>
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