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List: info-cyrus
Subject: Re: Distributed File Systems
From: "David Chait" <davidc () bonair ! stanford ! edu>
Date: 2002-10-21 18:13:27
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Lawrence,
If Cyrus does not opperate properly within an AFS environment, what does
CMU use as a storage solution? I can only assume it's not directly attached
storage considering the sheer mass of data involved.
----- Original Message -----
From: "Lawrence Greenfield" <leg+@andrew.cmu.edu>
To: "Josh Huber" <huber+keyword+cyrus.b8df14@alum.wpi.edu>
Cc: <info-cyrus@lists.andrew.cmu.edu>
Sent: Monday, October 21, 2002 10:18 AM
Subject: Re: Distributed File Systems
> Date: Mon, 21 Oct 2002 11:28:41 -0400
> From: Josh Huber <huber+keyword+cyrus.b8df14@alum.wpi.edu>
>
> "David Chait" <davidc@bonair.stanford.edu> writes:
>
> > Both CODA and AFS were developed at CMU, and I would be very
> > interrested in hearing their thoughts as well.
>
> Indeed, does someone have an answer for this question? Everyone seems
> to be avoiding it :)
>
> Can Cyrus handle storing mailboxes to an AFS drive?
>
> No. CMU's previous e-mail system, AMS, leveraged AFS extensively for
> storage (and transit) purposes. For various reasons it didn't scale
> particularly well and led to CMU's interest in IMAP.
>
> Cyrus was designed to use a local filesystem with Unix semantics and a
> working mmap()/write() combination. AFS doesn't provide these
> semantics so won't work correctly.
>
> Larry
>
>
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