Topic: Data Center Mining Garage and Man Mining Cave ( PART 2 !!!!!!!!) - page 42. (Read 106682 times)

Thats reminds me of my first few rigs - that were on wifi - it was ok at first but had to move to wired when I moved to the warehouse because the layout of racks and also I had to now support ASIC miners for my team. WIFI is still ok for test or very useful for troubleshooting.

Hallelujah 

Especially the Powerline adapters are the worst, ever been on the same power group with your speakers and listened to music? You can here the data being downloaded 

Always go wired indeed!

FIRST RULE OF MINING if you want to MAKE Money.  You will thank me later.

1) SAY NO TO WIFI!  
2) SAY NO TO POWERLINE Adapters

Let's not have a hundred back and forth discussion on this.  I will explain why.  

WIFI is good for a few rigs, maybe for Test Stations.  The more devices you add, the more it will cause interference / issues.  Even my trusted Power Line Adapters started having issues over time and this COST ME LOTS of $$$.  All this because I didn't want to pay for the Ethernet runs.  I end up paying for the Ethernet run anyway plus the revenue loss.   Most Home router CPU are not designed to handle too many devices at once either.   If you're mining inside your HOME or garage, not only is your gear if open Air, going to JAM the signal pretty badly, it will also degrade the WIFI signal badly.  I got to a point where I can't even open my Garage door due to interference.  This is via the Garage door Clicker and outside panel.  My Chamberlain and Rachioo both are wireless stop working until I shut everything off.  All my friends who did WIFI and PowerLine eventually shell out for hard wire.  You simply can not beat hard wire.  Would you trust a cell phone or a land line when you have a very important call?  Same idea.  It would work most of the time, but the 1 time you need it to work it may fail on you.  

FOR TEMP solution - SURE but plan on having hard wire ONLY if you're going to be SERIOUS about mining.

Wifi isn't a pro solution, there is far too much problems with it (stability, security, jamming, radiation emission and so on), especially when you concentrate many wifi devices in a small space, recipe for disasters, believe in the wire or the optical fibers, it's been proven to be the best ! As we demonstrated you can get very cheap switch & cables. go for them ! Don't be cheap, and go for the easiest / cheaper solution you'll come to regret it when you're losing mining time.

So many issues could arise with doing this, me personally I would not but if you want to, a few things to think about.

--At least make sure it is all 5ghz.
--Get a wifi scanner app for your phone and scan for other freq's in the area, most people will leave basic home wireless routers on auto to choose the least used freq and auto change.  Find the least used and set it to that freq so it doesn't change.  Im in a heavily populated suburb and to quit having issues with neighbors, I set all 3 of my wireless AP's to 5ghz upper and set freq to an unused freq.
--Get a wireless router that will support DD-WRT and flash them all.  Make sure all are set to pure AP mode and keep wireless security to same SSID and passwords so if 1 goes down, another will pick up.
--Here is the biggest kicker, some people and devices have the ability to shut your wireless connections down by sending deAuthentication packets via wireless.  If you have a nosy neighbor or someone just bored, this can get very frustrating.
--Best thing would be to disable SSID broadcast and setup mac authentication.  Its a bit of work up front because you have to input all wireless device MACs into the AP but it helps and is much more secure, unless someone can spoof your mac

Unless you are using Spotswood insert, that requires the 15 bay EATX, save yourself some coin and go with the 8 bay version found here: https://www.amazon.com/Rosewill-Rackmount-Computer-Pre-Installed-RSV-L4500/dp/B0056OUTBK?th=1

Trust me I've built a few of these now. (haven't finished with clean up yet)

This makes sense actually. Even more KISS I would think.

Especially for my case where all the rigs are contained within the warehouse and racks not more than 5-10 10-20 feet from each other.

I have about a dozen EDIMAX USB adapters and works well with Windows and Linux.

Also got Tytanick to get his smOS to support WIFI.

still in the box - I will probably get started tomorrow.

Description: Rosewill 4U Server Chassis / Server Case / Rackmount Case, Metal Rack Mount Computer Case support with 15 bays 7 Fans Pre-Installed (RSV-L4500)

In US: you can get it from Amazon, Newegg the usual suspects.

https://www.newegg.com/Product/Product.aspx?Item=N82E16811147164
https://www.amazon.com/Rosewill-Rackmount-Computer-Pre-Installed-RSV-L4500/dp/B0091IZ1ZG

Is there a reason you guys aren't using wifi?

On aliexpress, usb wifi sticks are $2 each with shipping. I tried it on one rig and the ping only increased 100ms and is very stable. Simple, cheap and no cables. 2 wifi routers for redundancy and good to go.

Granted that may change if we get a coin which requires a lot of data to be sent.

Hi Citronick!

What case did you get buddy?
How difficult is the modifying process?

This info will be of great help, Cheers!

Procurve for 20 bucks -- omg - you da man!

Btw, thanks to you... my first Rosewill case just arrived.
Plenty to experiment here and hopefully tidy up by warehouse and get those temps down.

If possible, can you link us to the cases? Will try it out.

Cheers

Nice thread(s)! Very curious about the case myself. I could tell it's a Rosewill since I already have one with my server in it, but was curious about a way to remove the drive cages and stuff cards in there? Looks like you have it figured out so I look forward to your details that you're willing to share.

I'm a fan of awesome miner as well, but definitely don't use it to it's full potential like you probably do 

I always believe in the K.I.S.S Method.  Keep It SIMPLE SILLY!  Those Cisco and NetGear Prosafe switch are dirt cheap used.  1 of them is more than sufficient for most home mining.  Two is the most you may need unless you have a big shop.  That should allow wide coverage.  For less than $200.  If you need a 48 port switch and are using almost that, that means a day of down time cost about that already.  If you must use tiny switches like I did, keep it to 1 and connect everything thru the Monster 48.  When I was searching for switches I didn't know any better and decent 48 port switches cost over $450 so I went with 2 x cheapy 24 port.  Worst decision ever, all it took me is 1 down day and many  problematic half day to make me realized, time to do it right.  

Just glad that there are cheap used alternative so it really doesn't make any sense to go Cheap.  I now avoid any brand that have the word "Link" in it, they tend to cause Link issues.  No DLINK, TPLINK, Linksys for me.  I own all of those brands and nothing but headaches.  My last upgrade was removing my Expensive TPLINK router which have great reviews however is crappy in real life use with over 30 hosts connected.  I still have 2 DLink, 1 TPLink, 3 Netis, and 1 Linksys in my garage collecting dust.  Combined those cover me over $300.  Wasted money.  If you have less than 10 rigs, it's ok to use cheapy 24 ports as you're not really pushing it hard.  If you're doing over 10 rigs, do yourself a favor and get a Biz class or Cheap used enterprise class switch since they are less than $100.  Not worth gambling.  As I am writing this, I just won a 24 port HP Procurve Enterprise switch for $3 plus 17 shipping.  Hahaha.  Great for backup in my office.  I don't need anything beyond 10/100 for mining.



P.S If you have DSL and you're forced to use their Router / DSL Modem, that could cause some headache if it's underpowered once you have over 20 hosts.  

Don't think anyone ever said its the best idea to nest switches, but I also am pretty sure no one on here is using a UCS class switch/router to run mining gear.  Going 1 deep with unmanaged switches off of a business class layer 2 managed switch is fairly ok from a home perspective.  Granted if you can afford 10 x 150 dollar 24 port business class switches it would be better to handle broadcast storms.  Also why the suggestion was made to run something like nagios/zenoss with nmap to find the issue.  If someone has more than 15 years background in a enterprise class environment that has affordable suggestions to the home user, by all means pipe up.  I always tell people in my daily travels, don't ever say no to something unless you have an alternate suggestion to provide at the same time.  

The guy that told you it was ok to nest up to 4 switches I dont think has ever dealt with a large scale network before. There is a good chance if you have enough clients on each switch you are ARP flooding your own network. I would get a switch that allows you to port mirror and wireshark the traffic to better see whats going on if you continue to have strange issues like that.

for updates this is 

I can atest to poor switches i had around 5 asus 8 p
port gigabit switches , every few days my entire network would go down
could not connect to internet, lan was slow the works thought i was a virus or
i had a machine brodcasting . to fix it id have to shut off all my pcs and router firewall etc
but coukd never figure it out just by luck one of those asus died swiched it out with a netgear pro
on a whim network was good withoute having to shut everything down. took out all the asus swith sx
and bam stable network for months now. its best to buy high end network gear fo. anything more than 10 pcs

Looks very much like my first family dog Brandy.

White/tan poodle my mom got in 1972 I was 15 at the time.

I walked it every night around 11pm as it was a way to get out of my house. And hang out with my friends an extra ½ hour at night.

His name is also Alfie.  He is a Malti-Poo and He Poo all day long!!  Wife brought him home for the kids so we finally are living the American Dream.  A House, 2 kids and a Dog.  I would also add it's a Miner's American Dream as the mining Shed is finally a reality.   =)




He loves to Party like me!