Re: [LUG] Linux Clusters!!!!

[Bill <work at billus.co.uk>]

On Thursday 03 May 2001 16:59, you wrote:
> Bill wrote:
> > On the side of Data Mirroring:
> >
> >          OpenAFS from IBM if the best scalable system, this is the bells
> > and whistles option
>
> Hi Bill,
>
> do you know of a good overview of what OpenAFS does?
I never used this IBM solution, as it was a larger, more complex 
then what I was after.

OpenAFS is I guess abit like NFS, but NFS is less secure than 
even SMB. OpenAFS has a more sophisticated authentication 
layer that can use kerberos.

The major difference from NFS is that NFS works at the file level,
where as OpenAFS is a working at mirroring the filesystem ( At the
block device level ).

OpenAFS is the right solution for a cluster, as it has all the mechanisms 
in place for file sharing and disconnection resync'n. When I was experimenting
with OpenAFS, I failed to get the authentication system working so left it alone
But it is a beautiful system.

>
> The docs make it clear it is fine as a replacement for NFS
> when serving simple small files, like user directories, but
> don't really mention if and how to do more complex thing (or
> if they do, they have moved that bit into the depth of the
> documentation).
>
> So far it looks like NFS, with caching, and ACL's....
>
> I've read the IBM documentation, but this is definitely from
> the luke warm, greasy, dead chicken school of IBM marketing.
>
> 	Simon
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