On Thu, Jul 27, 2000 at 02:10:59PM -0000, michael@??? wrote:
> > Have a look at nhash. It does something very similar and works well with
> > up to 3 million users. Basicly, it splits usernames into a div/mod
> > hash directory structure. In your example you'll get something like:
>
> Think about how to extend the system, though. If you distribute mailboxes
> using a hash, then you can not move a bunch of them manually to a new
> directory, because you have an additional hard driver or mail drop.
Two issues there. Make sure you have a big enough hash so that it will
never need to grow. So, it works out as 1000 * mod * div where
/mail/mod/div/user is your spool struct.
As for disk space, you can add disks to RAID volumes realy easly
nowadays. And if you use a proper data storage, it's trivial (vol
diskadd -- for all netapp users ;)
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Dr Yann Golanski Internet Systems Developer
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