The 40K user limit is due to the 40MB "practical limit" on the size of the
SAM hive (at 1K per user). This per-hive storage limit does not apply to
other hives, such the SOFTWARE hive where Imail stores Imail native user
info. Under NT4, there is a storage limit for all hives in the registry of
about 150 MB. Therefore, the ceiling for Imail users under NT4 would
relate indirectly to the size of all of the hives, but is not subject to
the NT domain boundary. Under Win2K with VLM support, the overall registry
size can be very, very large, meaning that Win2K Server would be the best
OS for big and/or growing Imail installations using Imail registry mode.
Sandy
At 09:05 AM 7/3/2001, you wrote:
>Sorry Len, that's 40K per DC under NT4 with at least one more BDC. And that
>number is probably a conservative number for Imail since they calculate that
>based on almost all the users having roaming profiles and machine/user
>policies that have to be served. M$ RULZ! :P
>
>Craig.
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED]]On Behalf Of Len Conrad
>Sent: Tuesday, July 03, 2001 3:37 AM
>To: [EMAIL PROTECTED]
>Subject: RE: [IMail Forum] choice of DB's
>
>
>
> >If you check the archives people just discussed this in a thread titled
> >access vs something or something like that. I won't bring it all up again
> >except to say:
> >
> >Many of us disagree with the statement below. I run internal db with
> >35,000+ users - others talk of 100,000. Hardly the limit of a few
>thousand.
>
>yep, it�s seems anamolous that Imail can successfully support so many
>registry records since the registry is know to be an under performer.
>
>I think MS said long ago that they don�t recommend more than about 14K
>users in the NT users database. But what do they know about systems design?
>
>Len
>
>
>http://MenAndMice.com/DNS-training
>http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K
>http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways
>
>
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