• Subject: Re: High Availability
  • From: "Al Barsa, Jr." <barsa2@xxxxxxx>
  • Date: Tue, 30 Jan 2001 11:01:24 -0500

At 06:15 PM 1/29/01 -0500, you wrote:

My preference is a natural gas generator.  They tend to start up reliably, and are low maintenance.

This brings up the question of what do you do if your disaster is SO bad that natural gas distribution is disrupted.  Well my take on that is that your area of the country will be in SO much trouble, that you being out of business will make little difference.


----- Original Message -----
From: tomh@simas.com
To: MIDRANGE-L@midrange.com
Sent: Monday, January 29, 2001 5:46 PM
Subject: Re: High Availability

You might considering Clustering to increase system availability: http://www.as400.ibm.com/ha/ha_clusttech.htm

What happens if you have a transformer blow out outside of your building, and it takes a day or so to get it working again?  I ask because this has happened at least once in 3 of the last 4 years here (the first ice fall here and the foot heaters go on).

DanDaFourOOMan <danda400man@yahoo.com>
Sent by: owner-midrange-l@midrange.com

01/29/01 04:05 PM
Please respond to MIDRANGE-L
        To:        "MIDRANGE-L@midrange.com" <MIDRANGE-L@midrange.com>
        Subject:        High Availability

I am needing to consider high availability options for our new
AS/400s, which I am responsible for configuring.  A recent
thread discussed RAID vs. mirroring.  Another thread mentioned a
product named Mimix, which I've seen advertised.
The new AS/400s are replacing old ones and we have one in each
of our five plants spread across the U.S., one in Mexico, and
one in England.  Needless to say, I need to be able to manage
these systems and diagnose and solve problems from our corporate
office.  Management appears to be opening the wallet to ensure
HA.  Some critical considerations: Unplanned outages of 8 or
more hours would hurt us.  Greater than 24 hours and I'll be
passing out resumes.
Where can I go to read up on the issues I need to consider for
Any advice on which way to go on RAID vs. mirroring?
Any other advice?

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

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