Am 17.11.2011 20:58, schrieb Patrick Ben Koetter:
>30.000 msg overall, including spam, or filtered messages?
Yes, overall. Got this values from mailgraph...
2 servers for in- and 2 for outbound mail is FAR too much!
Yeah, I thought of differentiate an in- and outbound server for
troubleshooting purpose.
My outbound traffic is really low, so I thought here of a virtual
machine for the outbound machine, if a central amavisd makes sense.
Look at this breakdown:
30.000÷30 = 1.000 msg/day
1.000÷24 = 41,666666667 msg/hour
42÷60 = 0,7 msg/minute
0,7÷60 = 0,011666667 msg/sec
Ordinary hardware (!) with cheap HDs can do about 20 msg/sec without
any
problem. If you go and buy a good RAID controller incl. a BBU and add
reasonably fast harddiscs you can easily take this up to 60 msg/sec.
Better
hardware gives you 100 msg/sec and more.
Ordinary hardware:
20×60 = 1.200 msg/min
1.200×60 = 72.000 msg/hour
72.000×24 = 1.728.000 msg/day
1.728.000×30 = 51.840.000 msg/month
That's 1.728 times much more performance than you need right now.
Wow, much thanks for your calculation that's really gave me a reality
check!
Honestly, I'm very happy getting here such qualitative answers, even
for a little like me.
I doubt that 0,011666667 msg/sec impose a problem for a shared
database.
That sounds good.
Well, now I'm going to plan with decentralized amavisd-new setup on 2
machines for in- and outbound.
Thank you!
Best regards,
Tobias
