Rif: Re: [Linux-HA] explanations

Carson Gaspar carson at taltos.org
Wed Jul 20 01:44:22 MDT 2005



--On Tuesday, July 19, 2005 9:45 PM +0200 Lars Marowsky-Bree <lmb at suse.de> 
wrote:

> On 2005-07-19T14:51:34, Carson Gaspar <carson at taltos.org> wrote:
>
>> I am _fairly_ certain that quorum is (or can be - I haven't looked at
>> quorum in 2.x) sufficient, assuming that all the code actually works as
>> designed.
>
> Then you're fairly certainly wrong...
>
>> STONITH (or storage fencing) protects against kernel / heartbeat
>> / storage bugs in addition to split-brain. If I'm wrong, I'd love to see
>> an  example of a failure scenario.
>
> Split-brain scenarios cannot be completely solved by quorum.

As I said, I'd _love_ to be proven wrong. But proof by vigorous assertion 
won't do it.

-- 
Carson




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