Re: 24x7 information

["Al Barsa, Jr." <barsa2@xxxxxxx>]

At 10:52 AM 01/12/2000 -0500, you wrote:
> > With all due respect, I disagree.  LPAR provides a single point of
> > failure.  If the CPU fails, all partitions are down.  When you IPL the
> > primary partition, all partitions are down.  And what happens in the case
> > of a fire or prolonged power outage?
>
>Al--
>
>Isn't your recommendation a little too absolute?
>
>CPU fails--that's a problem. How often does it happen?
>IPL machine--again, that's a problem--but how often does it happen. And,
>isn't the concept of a primary partition supposed to go away?
>Fire--both redundant AS/400s burn up
>Power outage--both redundant AS/400s croak (unless you have the optional
>gerbil-powered attachment in one of them)
>
>Shouldn't Jim at least consider the potential cost savings that LPAR offers.
>While there are exposures with LPAR that redundant AS/400s don't provide,
>the cost savings (LPAR, for example, only requires _one_ licensed copy of
>OS/400 across multiple OS/400 LPAR partitions) may make living a little
>closer to the edge worthwhile.

Roger,

All of my 24x7 accounts (except for one government site) are in different 
buildings, and some are in different cities.  This is because they are 
really 24x7.

I agree that the risk of CPU failure, massive power outage and fire are 
low.  (Keep in mind that almost [much DASD is now excluded] any hardware 
failure requires the CPU to be powered off.  The alternative is to "live 
better electrically".)  However the risk of CPU upgrade, adding DASD, and 
new releases to the primary partition are great.

Al




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Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting, LLC.  
400 > 390

Phone:          914-251-1234
Fax:            914-251-9406
http://www.barsaconsulting.com
http://www.taatool.com

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