Re: System backup in a 24/7 environment.

["Ashok Dave" <ashdave@xxxxxxxxxxx>]

Hi Ken. I've spoken to you on numerous occassions when you call IBM 
supportline.
If you are truly a 24x7 shop and cannot go down AT ALL, an option to 
consider would be a mirroring system, eg. Lakeviews MIMIX or Vision 
Solutions OMS. This is an expensive solution and there may be other 
methods but this provides a mirrored copy of your data on a second 
system. Both systems are kept in sync. so when you need to IPL one or 
apply ptfs or releases, you switch over to the secondary machine. With 
the above two technologies, this switch over is almost real time and can 
be made very slick and seamless. 
The second advantage of adopting this type of solution is that again, if 
you are truly 24x7, you cannot afford a disaster. Using MIMIX or Vision 
allows the second system to be your "hot backup" in the event of a 
failure on your primary machine. The software will automatically switch 
you to the secondary system.

Regards, 
Ash.


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>From: "Graap, Ken" <keg@gasco.gasco.com>
>To: "'MidrangeL'" <midrange-l@midrange.com>
>Subject: System backup in a 24/7 environment.
>Date: Thu, 25 Jun 1998 08:04:46 -0700
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>
>Hello all....
>
>I've recently changed companies and one of my first tasks is to
>reevaluate
>the backup recovery process for our 9406 530-2153 system...
>
>Where I came from we had the luxury of being able to take the system
>down
>for most of the day on Sunday to do a FULL system backup and IPL.
>
>Things are a bit different here... This system serves as our primary
>Customer
>Information / Billing system and needs to be up as close to 24/7 as
>possible.
>
>I know there are probably lots of Systems Administrators out there that
>have already
>come up with backup recovery plans that work with a 24/7 availability
>need.
>
>I was wondering if anyone would mind sharing some ideas on this 
subject?
>
>In a 24/7 environment when do you apply delayed PTF's?
>When and how often do you run SAVSYS?
>Are you using Save While Active (or should it be called "save SOME 
while
>active!)?
>How do you do release upgrades?
>
>thanx in advance for any ideas....
>
>Kenneth
>
>--
>********************************
>        Kenneth E. Graap
>  AS/400 Systems Administrator
>    NW Natural - Information Services
>             System Services
>          503 226 4211 X5537
>           FAX  503 721 2521
>********************************
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