RE: QUPSDLYTIM and powering off delay

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"Continuously Powered Mainstore (CPM) is a controlled shutdown mechanism
that is available on most AS/400 systems.", says the infocenter
document.

"most" being the operative word, so I searched again and found:

"On the PowerPC Technology 9406 Models of the AS/400, Continuously
Powered Memory (CPM) ensures that the battery can keep the contents of
memory for an extended period of time if main power is lost."  This
would imply that CPM is not built in to 9404 models, which happens to be
the system in question.

So it looks like I need to write a UPS monitoring program.  Confirm?

So what happens when the system does not have CPM and there is no UPS
monitoring program?  Is it a "hard" shutdown?

Dan Bale
IT - AS/400
Handleman Company
248-362-4400  Ext. 4952
D.Bale@Handleman.com

> -----Original Message-----
> From: Simon Coulter [SMTP:shc@flybynight.com.au]
> Sent: Tuesday, October 16, 2001 10:11 AM
> To:   midrange-l@midrange.com
> Subject:      Re: QUPSDLYTIM and powering off delay
>
> M
> Hello Dan,
>
> You wrote:
> >If the system initiates power off because the UPS supplied-power has
> >been on longer than that specified in the QUPSDLYTIM system value,
> what
> >kind of power down is it?  I.e.
> >PWRDWNSYS *IMMED
> >PWRDWNSYS *CNTRLD DELAY(3600) <== this is the system default
> >PWRDWNSYS *CNTRLD DELAY(????)
>
> D) None of the above.
>
> It simply saves main storage or using CPM keeps main storage state and
> kills
> the box.  If it successfully saved main storage then LIC will consider
> the
> next IPL normal however OS/400 never considers the IPL normal.  To
> perform a
> clean shutdown you must install or write a UPS monitoring program.
>
> >Is this documented anywhere?  I have not been able to find answers to
> >this specific question.
>
> It used to be documented in the Backup and Recovery Guide but they
> moved it
> to the Information Centre.
>
> Regards,
> Simon Coulter.