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Hello:
Our organization is planning to purchase 10 rack mount systems which will
primarily be used to server web pages and applications. Our goal is to
find a clustering technology that will deliver in order of priority
1) high availability/failover 2) load balancing 3) effective CPU
utilization.
I've been browsing the web looking for Open Source Linux-based clustering
solutions. There seem to be several projects from which to choose from,
and I am wondering which one is best for my needs. Among them:
- - - Beowolf: appears to be ideal for high performance but not for high
availability
- - - MOSIX: appears to also be ideal for high CPU performance but no
benefit for I/O bound applications; high availability doesn't appear to
be supported(?)
- - - High Availability Linux Project: load balancing and high availability
- - - Virtual Server Project: load balancing and high availability
- - - Piranha: load balancing and high availability
- - - mod_backhand: for Apache web load balancing; appears to be too
application specific for our goals.
There are probably others (note that I deliberately excluded any software
that isn't free either as in beer or as in speech).
Also, if i were to deploy a Mosix-based cluster, what kinds of hardware is
required? Ie. serial cables for heartbeat monitoring, etc.? Is there one
box which is used for the load balancing among clustered systems as is
done with Virtual Server Project? Is it possible for all clustered
systems to connect to an external RAID unit, or will they need to
communicate for data through one I/O server connected to the RAID unit
(I'm trying to eliminate points of failure).
Any information would be greatly appreciated.
- --------------< LINUX: The choice of a GNU generation. >--------------
Steve Frampton <[EMAIL PROTECTED]> Japan Communications, Inc.
Software Developer/Systems Administrator http://www.j-com.co.jp/
GNU Privacy Guard ID: D055EBC5 (see http://www.gnupg.org for details)
GNU-PG Fingerprint: EEFB F03D 29B6 07E8 AF73 EF6A 9A72 F1F5 D055 EBC5
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