Hi John
Not Max but I'm in working hours (and working on a Sunday arvo, don't ask
why <g>)
>When you mention incoming mail files does this apply to iMS SE ? As iMS SE
>is primarily for out going emails is there a way to split up the incoming
>mail files? and what incoming mail files are you referring to? You would
>only have incoming mail files if you were using SMTP / POP and the MX
>records were pointing to the iMS box right ?
If you are only worrying about sending mail then you can ignore this as the
only incoming mails you will have are bounce messages and they are going to
go to the one domain, the one you are sending from, so splitting the
domains is not going to help.
> >One performance suggestion I have is to perhaps split up the outgoing
> queue directory into sub-directories so there is never one
> >folder with 10K files in it (or even 1K). I think the file system
> performance drags when this happens (especially on slower
> >machines). ....
>
>Do you mean split up the outgoing queue directories to sub directories on
>another server or on the same box? Can you please explain how to do this
>please...
There is are a couple of things that affect the performance when you have
huge numbers of files in a single directory. The first is how the operating
system itself handles things and the second is the POST server and the
number of files it has to read from the directory and how it handles that.
NT has no theoretical limit on how many files it can have in a directory
(practically at least) but if I remember correctly it (NTFS) changes mode
when it gets above 4K files in a directory which affects the performance
slightly.
What we do to make the POST servers run smoothly is dribble the mails into
the servers so the directories never get above 4K. We run a scheduled task
every 15 mins that looks at how many are left in the directory and then
tops it up. We also run a big number for the MX cache (10,000) so that the
lookups are minimal.
--
Yours,
Kym
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