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> Patrick Lauer wrote: |
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> |
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>>> Talking about storage, I'll use SCSI drives and a RAID1 hardware |
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>>> controller. |
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> |
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>> Nonsense ;-) |
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>> Linux software raid is as fast and easier to manage. Also SCSI is |
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>> expensive - for the price of two scsi disks and a controller I can get |
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>> a 6-disk software RAID5 that will most likely outperform it and has |
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>> about 10x the space. |
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>> For most uses el cheapo SATA will be better (but SCSI / SAS / |
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>> FibreChannel has its place) |
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> |
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> An onboard RAID card has the advantage of local cache (assuming yours |
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> comes with some) which really really helps make all those 10-15k writes |
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> when shuffling mail around your through your MTA's internal queues. |
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> Using qmail about three years ago I was able to move about 2 million |
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> unique emails a day on a single machine. Without the RAID card it |
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> dropped down to just under 1 million. That's an extreme case since we |
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> weren't doing much processing on the email so the top speed was limited |
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> only by I/O. |
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> I agree that 4-6 drives of SATA is a better way to go over SCSI |
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> especially with users under 1000. RAID 5/6 (software or hardware as your |
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> budget decides) and worry less about your data. Also find our what they |
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> were paying for mail so you can use 12-18 months as your budget. |
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> |
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is everyone comfortable with SATA in this role? |
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> The big problems is nailing the requirements for this down. |
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> virus and spam checking? |
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> what attachments can you deny? |
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> calender? |
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> global address book? |
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> imap? pop? smtp-auth? |
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> web mail? |
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> How big is the average mail box? |
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> Can you set soft quotas? |
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> and so on. |
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> |
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Virus and Spamchecking will be my biggest concern. I'm happy with CLAMAV |
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at home, since it updates itself, but i haven't played with spamassasin |
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enough yet. Anyone have a place to point me to read up on a server setup? |
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They don't know about calendaring, global address book, imap/pop, etc. |
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Most mail is downloaded and deleted after a few days. The webmail users |
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mail is only kept for a couple of weeks. (default server setting) |
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now, I'd like to offer some of those things to them. Is there a |
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calendaring solution out there? |
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> Specing hardware is likely to be the easiest part once you know what you |
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> are actually going to build. :-) |
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> |
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> Assuming you do everything in house I'd lean toward Openldap as the |
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> backend for mail which should work nicely with Samba as an NT4 pdc so |
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> you could have global logins for everyone with some planning. |
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> |
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This would be the long term desire. Samba/Global logins without M$..... |
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> kashani |
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> -- |
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> gentoo-server@g.o mailing list |
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> |
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> |
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-- |
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