Date: Thu, 12 Mar 1998 08:16:47 -0800 (PST) From: Simon Shapiro <shimon@simon-shapiro.org> To: "Robert A. Bruce" <rab@cdrom.com>, freebsd-database@FreeBSD.ORG Subject: Re: Fault tolerance issues Message-ID: <XFMail.980312081647.shimon@simon-shapiro.org> In-Reply-To: <199803121428.GAA20032@pike.cdrom.com>
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On 12-Mar-98 Robert A. Bruce wrote:
> Andrew Stesin <stesin@gu.net> said...
>>
>>Hi,
>>
>>On Wed, 11 Mar 1998, Wilko Bulte wrote:
>>
>>> > Good idea. How about moving it to freebsd-database which is already
>>> > there.
>>> > Besides, only database winnies are interested in such stuff...
>>>
>>> Na. That is A. not 'meaningful naming' and B. I don't agree that only
>>> DB weenies are interested.
>>
>> Too many lists aren't a good thing either. Databases
>> require HA, so everyone interested in databases will be
>> a HA-list reader by definition; everyone who needs HA
>> needs it for something, and pretty much every "serious"
>> task today has something to do with databases? I agree that
>> HA and `databases' are very close topics.
>
>
> What is "HA"?
1. Short for Ha!, or Ha-ha-ha!, as in ``Do you really belive this can
work? ha ha ha!"
2. High Availability. AKA HAS, High Availability Server. A set of
features that allow a computer to continue and provide service with no
loss of data and only a brief interruption of service, in the fase of a
single failure.
HAS are typically said to be SPOF (Single Point Of Failure) free. They are
designed to have the ability to tolerate any single component falure.
If there is interest, we can start a discussion on what such a computer
looks like.
Simon
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