New mining farm (100 miners to start)

[Matce]

Hey guys,

I secured a location today to set up a new farm - starting out with 100x S9 miners.

Electrical / cooling is pretty much figured out.
Setting up 2x 50 miners shelves - each has a 4ft (15000CFM) exhaust fan that airs the hot air out and each miner has a separate breaker outlet.

Only thing I'm wondering is how to best connect ethernet?

Thinking of a Asus RT-AC66U B1 that has built in VPN so I can control remotely, but how am I getting all miners connected?
TL-SG116 16-port switches are very cheap, but running 7 of them ? Setting them up as a tree?

Basically 3 switches straight to the router ... that gives me 3x16 miners (48)
On the 4th port another switch and connect (up to 16) switches there? Onto those switches the rest of the miners?

thanks

[1713249663]

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[1713249663]

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[1713249663]

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[1713249663]

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[1713249663]

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[philipma1957]

Hey guys,

I secured a location today to set up a new farm - starting out with 100x S9 miners.

Electrical / cooling is pretty much figured out.
Setting up 2x 50 miners shelves - each has a 4ft (15000CFM) exhaust fan that airs the hot air out and each miner has a separate breaker outlet.

Only thing I'm wondering is how to best connect ethernet?

Thinking of a Asus RT-AC66U B1 that has built in VPN so I can control remotely, but how am I getting all miners connected?
TL-SG116 16-port switches are very cheap, but running 7 of them ? Setting them up as a tree?

Basically 3 switches straight to the router ... that gives me 3x16 miners (48)
On the 4th port another switch and connect (up to 16) switches there? Onto those switches the rest of the miners?

thanks

get 48 port used switches.  let me find you a link

I DID NOT USE THIS GUY
https://www.ebay.com/itm/274885548805?


BECAUSE:

I grabbed 4 from the guy below. His shop is under 2 miles from my farm

https://www.ebay.com/itm/292503559584?

He is in New Jersey




USE  a pc like this

https://www.ebay.com/itm/313624762269?


connect with a remote desk top app like this


https://anydesk.com/en

[Matce]

oh damn, thats a deal
Thanks!

Now I just gotta find 2 decent exhaust fans and I should be set

[philipma1957]

oh damn, thats a deal
Thanks!

Now I just gotta find 2 decent exhaust fans and I should be set

note how to access with a pc on site and anydesk

oh any cheap monitor keyboard mouse for the pc is good.  When you work on site and not remote.


I love our remote setup we can go months with out going on site.

[Matce]

yeah, I'm using an Asus router with integrated VPN, so we should be able to connect pretty easily, but we have a full office setup at the warehouse anyways and staff

[danieleither]

Piece of advice... Don't scrimp on the fans, I learned this the hard way. Cheap extraction fans aren't designed to run 24/7 with hot airflow and they will burn out quickly, even when over-specced.

If your budget will allow, go for 3-phase fans, specced well above the airflow requirement and with a transformer-based controller.

[Matce]

Piece of advice... Don't scrimp on the fans, I learned this the hard way. Cheap extraction fans aren't designed to run 24/7 with hot airflow and they will burn out quickly, even when over-specced.

If your budget will allow, go for 3-phase fans, specced well above the airflow requirement and with a transformer-based controller.

I'm currently looking at 2x 36" 1/2HP fans from Hessaire. Has decent reviews and at 350/unit its not terrible either.
They're spec'd to 11000CFM each, so should be good?

[philipma1957]

Piece of advice... Don't scrimp on the fans, I learned this the hard way. Cheap extraction fans aren't designed to run 24/7 with hot airflow and they will burn out quickly, even when over-specced.

If your budget will allow, go for 3-phase fans, specced well above the airflow requirement and with a transformer-based controller.

I'm currently looking at 2x 36" 1/2HP fans from Hessaire. Has decent reviews and at 350/unit its not terrible either.
They're spec'd to 11000CFM each, so should be good?

are they both for out flow?

100 s9 units are about 100 x 220 = 22000 cfm  on the little unit fans.

So 11000 cfm in and 11000 cfm out is not enough.

22000 cfm out works.

passive intake is okay if big enough and filtered.

we use metal reusable filters like these:

https://www.mcmaster.com/air-filters/heavy-duty-reusable-metal-panel-filters-11/

or these

https://www.mcmaster.com/air-filters/made-to-order-heavy-duty-reusable-metal-panel-filters/

these save a fortune in replacement costs.

you still may need to clean your s9's  every 3 to 6 months.

We have a very dirty environment out side of the mining room. So we clean the metal filters monthly and we clean the gear every 100 days.

[Matce]

Piece of advice... Don't scrimp on the fans, I learned this the hard way. Cheap extraction fans aren't designed to run 24/7 with hot airflow and they will burn out quickly, even when over-specced.

If your budget will allow, go for 3-phase fans, specced well above the airflow requirement and with a transformer-based controller.

I'm currently looking at 2x 36" 1/2HP fans from Hessaire. Has decent reviews and at 350/unit its not terrible either.
They're spec'd to 11000CFM each, so should be good?

are they both for out flow?

100 s9 units are about 100 x 220 = 22000 cfm  on the little unit fans.

So 11000 cfm in and 11000 cfm out is not enough.

22000 cfm out works.

passive intake is okay if big enough and filtered.

we use metal reusable filters like these:

https://www.mcmaster.com/air-filters/heavy-duty-reusable-metal-panel-filters-11/

or these

https://www.mcmaster.com/air-filters/made-to-order-heavy-duty-reusable-metal-panel-filters/

these save a fortune in replacement costs.

you still may need to clean your s9's  every 3 to 6 months.

We have a very dirty environment out side of the mining room. So we clean the metal filters monthly and we clean the gear every 100 days.

appreciate the info on the filters!

Yes, 22000CFM outflow - 2 racks each 50 miners and the fan positioned about 3ft behind them - that should draw the air out.
If needed, we can put a portable fan in front of the miners, but temperatures aren't bad.

[mikeywith]

Basically 3 switches straight to the router ... that gives me 3x16 miners (48)
On the 4th port another switch and connect (up to 16) switches there? Onto those switches the rest of the miners?

You can connect one switch to another using a LAN cable, you lose a few ports when doing so and the network gets a little messy so try to stick to using large switches, if you can't or/and if they are too expensive, that trick works just fine, also you don't need any sort of VPN and you shouldn't be doing that if you don't have to, get yourself a cheap laptop/pc and use remote desktop/ TeamViewer/ Anydesk to access your miners.

[Matce]

Basically 3 switches straight to the router ... that gives me 3x16 miners (48)
On the 4th port another switch and connect (up to 16) switches there? Onto those switches the rest of the miners?

You can connect one switch to another using a LAN cable, you lose a few ports when doing so and the network gets a little messy so try to stick to using large switches, if you can't or/and if they are too expensive, that trick works just fine, also you don't need any sort of VPN and you shouldn't be doing that if you don't have to, get yourself a cheap laptop/pc and use remote desktop/ TeamViewer/ Anydesk to access your miners.

Hey, I got 3 of the big cisco switches posted above, thats 150 ports, so should be good
Question... You said I shouldn't connect thru a VPN... why is that? Whats the particular issue with that? Using it on my hosted miners and works pretty solid!
thanks!