Slave Servers Requirements
This page describe our recomendations to add a slave server to giss network.
It's based on our experience and the actual requirements of the icecast master/slave infrastructure to allow all the mountpoints in use at one time.
Recomendations to add an icecast slave server to relay all mountpoints
Bandwidth: minimum 20 mbps dedicated up/down
Monthly Transfer: 2TB / month
Server Software: as described in Servers Configuration
Server Hardware: 2,4 Ghz CPU / 512 RAM
And to add an icecast slave server to relay only some mountpoints
If you have X bandwidth and you want to join your server to giss, we recomend to tune icecast params like this:
X bandwith in kbps / 100 kbps (aprox for each connection) = max clients param in icecast conf max clients paramm in icecast conf / 4 (clients by source) )= max source param in icecast conf
If you have monthly transfer limits in your server you should know that one slave with about 25 sources online at the same time consumes each day about 30GB, so 1TB at month.
This way you can tune params in icecast like this:
X GB monthly transfer allowed / 40 = max source param in icecast max source param in icecast * 4 (clients by source) = max clients param in icecast conf
Well, it's not a science as you can see. The 4 clients for source is an arbitrary number and the 100 kbps for each connection is more than is usually is. So take this notes only as an aproximation. ;)