From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <290123fc5bcb125f2b317222cfa4e020@9fs.org>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti arenas
From: nigel@9fs.org
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Date: Wed, 30 Apr 2003 10:22:28 +0100
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OK. I can see that the max-oversize is 1Mb, and not 2 * 'arenasize',
but that 1Mb is a constant embedded in the code.

Externally, I can't tell how to choose my arena size.

Surely that's untidy?

Unless, of course, there's a reason to have 1Mb free at the end.

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To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti arenas
From: Richard Miller <miller@hamnavoe.demon.co.uk>
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Date: Wed, 30 Apr 2003 10:03:21 +0100

> If they don't fit exactly into the arenas file, according to the
> storage stats, the last arena is bigger than the requested
> arena size.
>
> Please tell me that only the first 'arenasize' bytes are used,
> otherwise I have to set arena size to just less than half
> the size of my backup media...

I think the last arena can only exceed arenasize by up to MinArenaSize
bytes, which is 1 megabyte.  So you only have to set arenasize to
1MB less than the size of your backup media.

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