Re: [SAGE] number of eggs in a basket

[John Sechrest <sechrest@jas.peak.org>]

As I have done work, I have moved more and more to 
seperate machines/instances -> one per service.

I am starting to use UML virtual instances to take this to 
a further extreme. 

It does increase complexity.

However, if you use some form of configuration management
language like cfengine, bcfg, lcfg, ..... 
then it makes little difference if you have 10 or 100 machines.



Jan Schaumann <jschauma@netmeister.org> writes:

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 % Hi,
 % 
 % I'd like to get some opinions regarding best practices for mission
 % critical systems with multiple services. 
 % 
 % I have a system that basically is a single point of failure:  if it's
 % down, nothing goes.  The services on that machine are WWW, NIS, NFS and
 % mail.  Mail is delivered to ~/.mail so mail can be read via NFS and need
 % not be fetched.
 % 
 % I do not like having all my eggs in this one basket, but on the other
 % hand distributing the services to several machines seems to complicate
 % things and increase the likeliness of one of the services failing.
 % 
 % So... what are your comments/experiences?  How many eggs do you keep in
 % your basket(s)?
 % 
 % - -Jan
 % 
 % - -- 
 % You can blame it all on the Internet.
 % 	Larry Wall
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-----
John Sechrest          .         Helping people use
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                                 .       Internet: sechrest@peak.org
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                                              . http://www.peak.org/~sechrest