Newbie here. No network experience but already running 2 TOR instances: 1 TOR
service + 1 bridge.
I would like to "upgrade" to TOR relays but have a few questions relating to
hardware needs.
The [TOR-friendly] ISP I'm looking at have these 4 offers available:
[1]
1 core @ 3.1GHz
1 GB RAM
10 TB/mo @ 5 Gbps BW
[2]
1 core @ 3.1GHz
2 GB RAM10 TB/mo @ 5 Gbps BW
[3]
2 core @ 3.1GHz4 GB RAM20 TB/mo @ 5 Gbps BW
[4]
3 core @ 3.1GHz
12 GB RAM30 TB/mo @ 5 Gbps BW
From [relay
requirements](https://community.torproject.org/relay/relays-requirements/), my
understanding is that [1] is what is expected for a guard or middle relay and
[2] for an exit relay.
My preferred choice at the moment is [3] where I would like to have 3 relays
(one of each type; 3.5 GB RAM needed). Each relay would be limited to, say, 6.6
TB/mo BW. This would allow me to experiment and get used to the network and its
requirements.
My questions is about future increase. If I want to increase my offer to the
TOR network I could:
- Negotiate with my ISP to increase my BW to 30 TB/mo while still running on
[3] and increase each BW limit to 10 TB/mo;
- Move my 3 relays on [4] and increase each BW limit to 10 TB/mo;
- Move my 3 relays on [4], add 2 IP addresses and 6 relays (2 of each type;
10.5 GB RAM needed total), and limit each relay to 3.3 TB/mo.
I guess my fundamental question is what is the advantage of running multiple
relays of the same type, on the same server? I see some operators running
dozens of them, all in the same country, same ISP. Why not just a single relay
running with a large capacity? Also, is there a requirement for the number of
relays per core? (Maybe this is the answer to my question.) I know my bridge is
currently keeping one core of my 2-core server constantly under load.
Thank in advance.
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