Re: 24x7 information

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

At 06:04 PM 01/12/2000 -0800, you wrote:

Apart from (unlikely) physical disasters, LPAR would provide what you want.

However, LPAR would not prevent the outage from installing new releases or 
PTFs on the primary partition.  (When the primary partition is down, the 
entire system is down.)  Also most hardware upgrades require the entire 
system to be down.

Al


>Al,
>
>If I understand the original request correctly, the objective is to
>provide backup capability without bring down production.  Not even the
>sync time needed for save while active.
>
>Would LPAR allow data mirroring to occur with one partition live for
>production and the second partition devoted to mirroring and backup
>work?
>
>Granted, natural disasters (fire, flood, etc.) would kill the box, but
>with a good backup, a hot site could keep them afloat.  I'm just
>thinking that if you have two machines, in the same room, connected by
>fiber, if one burns so does the other.
>
>Now I would grant that LPAR gains nothing for the down time required for
>upgrades.  IMHO, that is more likely to occur than disaster recovery and
>is usually scheduled for normal production downtime.  The request did
>say 24/7, but it didn't say 24/7/365.
>
>Just a thought.
>
>"Al Barsa, Jr." wrote:
> >
> > At 09:24 AM 01/12/2000 -0600, you wrote:
> > >Nedenfor er resultatet af din e-mail formular.
> > >Indsendt af hkrebs@hkrebs.dk
> > >
> > >message: Sorry - no practical experience, But you should at least consider
> > >LPAR instad of two separate boxes.
> >
> > 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
> >



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

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