Fusion Server Setup for Maximum CU

[Bill]

Hey everyone,

I decided to math the fusion servers to find a nice balance. I believe I have found one that seems pretty optimal to me. Here's the breakdown.

Disclaimer: I am using the biggest Hosting Facility (245,000/month).

Large Rack x7 (I call this the fusion rack)
1 x Fusion server @ 100%
1 x Database Xserver @ 100%
Rest of slots = coolers

Large Rack x1 (I call this the cache rack)
3x Cache XServer @150%
3x 4U Blade Server @ 140%
Rest of slots = coolers

Fusion Heat Transformer x1

This will yield the following results:
Webserver, Cache and Database all generated @ 1.260m which gives a combined Produced CU of 17.64m.

As you can see, for every 7 fusion racks you will need 1 cache rack.

Temperature will get rather high yes. That's why you need the Fusion Heat Transformer.

I have been able to do a ratio of 14 : 2 : 1
14 Fusion racks : 2 Cache Racks : 1 Fusion Heat Transformer to keep the heat to a minimum.

I really hope this made sense to everyone. If you have questions, or find different results, please post!

[Bill]

I've seen a few people posting about DDoS attacks, and with this setup, I barely even give DDoS attacks a second thought. Posting this to bump it.

[jcheung]

i want to ask, why use blade servers? two blade servers consume more power than a single xserver, and assuming this follows the rule of heat=power consumed.... generates more heat

should be able to run a ratio of 7 fusion/7 database xserver/5 cache xserver if my glance at the numbers are right?

a single rack could take 6 xservers to match the rack temp to a single fusion in power draw, though the xservers probably have more wiggle room before overheating...

to break down comp like yours
14x rack w/ fusion server
2x rack w/ 6 database xserver
2x rack w/ 5 cache xserver, 1 database xserver
1x fusion heat xformer

disclaimer: this is pure theorycrafting, actual results tbd when i unlock it

[Bill]

I'll check this out next time I play.

Thank you for chiming in with another setup! Much appreciated!

Are you doing any overclocking on your setup?

[jcheung]

okay, actually got around to building this, minus the fusion heat xformer. dummy here forgot that large racks can only fit 5 xservers each, whoops.
i mostly underclock and use a controller to clock up during dos and whatnot, but that still requires oc tuning. as such...
at ambient 4c *under load*, a rack with a fusion server and 6x small cooler can be OC'd up to 131% without throttling. can further tune based on ambient temps, but...

7x rack w/ fusion, 6x small cooler
1x rack w/ 5x cache xserver
1x rack w/ 5x database xserver
1x rack w/2x database xserver - combine additional 2x racks to this one

note that this also exploits the fact that currently, heat removed by small coolers is entirely removed and not thrown into ambient.
as such, if you need to lower your ambient, you can also slot in 2 small coolers into the xserver racks
and if your ambient is lower than 4c under load, you may be able to slot in a 7th cooler into your fusion server to clock higher.

[jcheung]

i've also come to the conclusion that fusion heat xformers are *not* worth the extra cost until you are space starved. hi-tech air conditioners are much cheaper, much more energy efficient, and requires less power use for the same cooling.

use only when you run out of room

[Bill]

What CU does your setup generate? I'm just wondering based on the CU/rack ratio.

My setup is 17.64m cu / 8 racks. I haven't had a chance to jump in and test yours, but I will absolutely check it out.

The underclocking and using the controller for DDoS is clever as well, never thought of that, going to try that approach. Usually by the time I get to these server setups, money isn't a concern so I just let em ride haha. Next step is to try and be more efficient.

[jcheung]

well, i could certainly condense the number of racks some if i play with overclocking.
when i get around on my new save to that level of tech again i'll spit out some hard numbers-that said, if you've run out of room in the big server farm, i'm impressed, in a bad sort of way.

2 of my 7:1:1:1 setups with a few hi-tech ACs should be equal to your 14:2:1s since i didn't see a mention of overclocks, so 2 more racks and some more floor space consumed for AC.
i could also certainly move some of my 8Us into the racks holding the fusions as well, but i was going for simple. i haven't optimized everything to be perfect yet ;)
i'll optimize for nil external cooling and fewest racks possible with and without OC tweaks... uh... probably tomorrow at the earliest

[Bill]

Sounds good, I'm looking forward to hearing your results. It may completely change my setup. Have a good one!

[jcheung]

alright. so base clock, no overclock. largest server area.
7 racks total, no external cooling
7 fusion, 7 U8 database, 5 U8 cache

setup:
2x rack with 1 fusion, 1 U8 database, 6 small cooler
5x rack with 1 fusion, 1 U8 database, 1x U8 cache, 7 small cooler

output 17,640,000 cu
2,520,000 cu per rack

[jcheung]

mild overclock, largest server area
7 racks total, no external cooling
7 fusion, 8 U8 db, 6 U8 cache

setup:
1x rack w/ 1 fusion, 2 U8 db, 8 small cooler
6x rack w/ 1 fusion, 1 U8 db, 1 U8 cache, 8 small cooler

overclocking:
all fusions to 119% (highest you can go with ambient 10)
single database to 133, add one small cooler to rack
single cache to 95

output 20,991,600 cu
2,998,800 per rack

*note*
may be able to distribute the database load across all the databases to save yourself from adding one small cooler, but i felt that wasn't worth the hassle. if you want to distribute equally though, 7 DBs roll up to 104 and 1 up to 105.
did not test what this may or may not do to the dual database rack, in that case you can instead set 5 databases to 105 and 2 to 104, leaving one of the ones in the dual rack at 100

[jcheung]

absolute max per rack
mild overclock, largest server area
7 racks total, no external cooling
7 fusion, 8 U8 db, 7 small web, 6 U8 cache

setup:
1x rack w/ 1 fusion, 2 U8 db, 1 small web server, 9 small cooler
6x rack w/ 1 fusion, 1 U8 db, 1 U8 cache, 1 small web server, 9 small cooler

overclocking:
all fusions to 119%
single database to 123, in same rack underclock cache to 90
single database to 122, in same rack underclock cache to 90
2x cache to 112
all small web cache to 200%

output 21,040,600 cu
3,005,800 per rack

**note**
small web servers are extremely inefficient compared to U8s, i used these only to maximize output per rack-i do not advise this as you'll be paying slightly more for power.

[Bill]

Nicely done! Looks like I'll be revamping my current setup. Thanks for this!

[jcheung]

overclock, largest server area
7 racks total, external cooling with 5 hi-tech ac (only needs to be placed once, ever)
7 fusion, 8 U8 db, 6 U8 cache

setup:
1x rack w/ 1 fusion, 2 U8 db, 10 small cooler
6x rack w/ 1 fusion, 1 U8 db, 1 U8 cache, 10 small cooler

overclocking:
all fusions to 129
4x database to 112
4x database to 113
2x cache to 7
3x cache to 8
assign the higher cache clocks to the lower database clocks if possible

output 22,743,000 cu
3,249,000 per rack

[jcheung]

after the 4th hi-tech ac it starts giving diminishing returns on the AC cooling :/ i could keep tuning downwards if you want though

disclaimer: i ran these numbers and confirmed with only about 15 racks, there may be a point or two of heating when lots are placed. this may require some floor space to be used for cooling, but minimal.