Re: High-availability question

Stephen C. Tweedie (sct@redhat.com)
Mon, 26 Jul 1999 22:10:37 +0100 (BST)


Hi,

On Sat, 24 Jul 1999 00:03:49 +0200 (CEST), Rik van Riel
<riel@nl.linux.org> said:

>> Couldn't you use raid1 over exported/imported dev files for that?

> No. Then you'd have a single machine handle the filesystem
> and I don't want no single point of failure.

Not at all --- if you have two machines, each with an internal disk
being mirrored to the other, then you only need to mount the filesystem
on one of those machines at once for failover. The negotiation of who
has that right is a separate issue, of course (the same host should also
be the owner of the software raid array, and we also need to manage
rebuild of the raidset when the other machine resurfaces).

--Stephen

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