[AccessD] OT: But only Partly

Hi Helmut

You are right. It was just a picture but maybe not the best ... except if you fly a helicopter or a fighter jet.
The alternative I had in mind, was a four-engine jetplane. These will normally fly with two engines only, in some cases even one engine.

/gustav

>>> hkotsch at arcor.de 22-03-2007 12:38 >>>
Gustav,

with a monoengine airplane you still have a very good the chance of a safe
landing even when the engine breaks. You might not end up at the runway you
intended to go to but you are alive.

Helmut

-----Ursprungliche Nachricht-----
Von: accessd-bounces at databaseadvisors.com 
[mailto:accessd-bounces at databaseadvisors.com]Im Auftrag von Gustav Brock
Gesendet: Donnerstag, 22. Marz 2007 11:22
An: accessd at databaseadvisors.com 
Betreff: Re: [AccessD] OT: But only Partly


Hi Jim et al

Yes, this is to possibly eliminate any "single point of failure". Thus, you
should always have at least two independent backup systems.

If you - for practical or budget reasons - have to trust a single point,
this must be proved to be very reliable. Think of a mono-engine airplane.

/gustav


>>> accessd at shaw.ca 22-03-2007 03:01 >>>
According the Instructor and 15 years DBA who is teaching the course I am
currently taking...One backup system is not enough. Many big installations
have as many as 4 backup and recovery processes implemented.

Jim