Large Scale Burst Mining Operation
I am wondering if the quality of the HDD and CPU is essential to the overall efficacy? If I were to acquire SSDs and additional GPUs per machine, would I therefore produce more Burst? I don't see why I would, but this is why I am asking. Obviously, that would make the project impossible due to excessive cost, but I really need to know.
Also, how many HDDs/SSDs could I hook up to one "mining kit" which would include, I presume, a viable processor and certain amount of RAM.
I really need these questions answered... Thanks!
CPU, GPU and RAM is not the most important in Burst mining. You only need them when plotting or/and optimizing.
Your HDD size is what matter.
@Colby3316 Capacity trumps everything. Get as much capacity as possible then figure out how to mine it in an acceptable to you time.
@haitch so an SSD will provide no extra support? What are the things I need for an HDD?
*miniumum amount of ram and CPU per HDD
I imagine I could hook up 10+ 5 TB HDDs to 1 CPU.
Wish there was a calculator for how long plotting would take, haha! Don't want to plot for a year if I have 200000 TB ;-)
I really have faith in this coin and am planning to give it a little burst, just need sufficient information... ;-)
@bandarfjb what do you mean by optimizing?
@bandarfjb what do you mean by optimizing?
optimizing the plots so that your computer reads the plots more efficiently. therefore, less time needed.
@Colby3316 I have been doing similar research. so far I was able to find a hardware that can take upto 60 drives or 45. if you have 10TB hard drive then you can get 600TB in a single unit.
backuppods with 60 drives. https://backuppods.com/collections/backblaze-storage-pod-6-0/products/backblaze-storage-pod-6-0-kit-60-drive-480tb-storage-server
if you use 60 drives of 8TB then you get 480TB or 10TB in which you get 600TB.
this is a more expensive powerful hardware. I think this one is not very cost effective. It would take you forever to reach break-even point with current price.
I have contacted the company and it will cost you around 5,500 for the 8TB with 60 drives and two unites of the hardware itself.
I think you can use a regular motherboard with a really good GPU. I think you can have upto 500TB with adding extra PCIe and USB3 hubs. I am still researching on this. We can help each other and find the most cost effective solution.
we need to know below points.
- Cheapest motherboard that can support multiple PCIe
- Good CPU that can support 500TB
- A good GPU like AMD 480 "thanks for @luxe for this information"
- HDD, 7200RPM or 5400RPM?
- I think to speed up the plotting you need 64GB of RAM.
@Colby3316 Concerning HDD vs. SSD :
Best storage media (HDD vs SSD)
If you want to mine Burst, your first priority should be disk space. Speed is your second priority. Therefore you would want to get as much disk space as possible while not sacrificing on speed. This is what makes HDD your best option, it offers the best ratio between price and capacity, while still running at a reasonable speed. SSD is the second best option, but HDD beats it by a lot. By getting SSD, you are limiting the disk space you can get pr. dollar and a SSD has a relatively low disk capacity. (as of writing, SSD = ~2TB and HDD = ~8TB). After SSD you have all your performance options, like M.2 and RAM disk. The story is essentially the same as SSD, they are too expensive to mine with. (RAM disk even worse, but I won't go into depth with that.)
TL:DR: Get as much disk space as possible for your money, if you can find a SSD at the same price of a HDD, go for it.
SSHD, is a no go. The SSHD's main advantage is its smart cache, but as @luxe said, the "Cache will not help on mining. A Plotfile contains 4096 scoops, only one scoop is read for mining per block. But it is always another scoop. So data in cache can not be used for next block.", they cost more and adds another point of failure, reducing its lifetime.
@Gadrah_ @Colby3316 right now I am running two different machines for testing. first one with 500GB HHD, second one with 500GB SSD. I am making same amount of coins so far. in some cases I make more with the HHD.
@botan Good to know, but you would have to let it run for weeks/months to really see which submits the best deadlines on average.
A quite big problem building a own large scale storage solution is the power for internal drives ... because it makes no big difference if you buy a 500W or 1500W Power Supply ... the SATA power support seams almost the same. It is just about 1 or 4 GFX-Cards.
I just contacted https://backuppods.com after i took a closer look at:
And saw that they have a great solution to attach as much drives as possible to a PC-Power Supply using not only the sata but also the VGA slots of the Power Supply. Makes it possible to provide power for 30 drives (or maybe more).
I asked them if it would be possible to just buy this cables ... as i do not want to make them myself.
What would be possible due its a open source system, all plans and stuff are available.
As soon as i get an answer, i will provider their current prices here.
EDIT: Always 2 x 4-PIN-MOLEX are used for a backplate with 5 drives, so maybe i can add a 3xSATA adapter to every of the 12 x 4-PIN-MOLEX ... that would be 36 Drives ...
MOLEX ... that would be 36
Thanks a lot for this detailed answer. Do you think it would be better to buy all the parts individually to create a similar setup? or should I just get this solution?
@luxe I just found the same power supplies used for this unit. I can see they are available on amazon, its the same model but two different prices. I don't see any difference. Can you tell if there are any differences?
I think I need to check if I can add a GPU to that motherboard.
also I found a very good HHD with a reasonable price.
Seagate Archive HDD 8TB SATA 6GBps 128MB Cache SATA Hard Drive (ST8000AS0002): price $236.88 https://www.amazon.com/dp/B00XS423SC?m=A1BKCYQGK0QCS0&ref_=v_sp_widget_detail_page
@botan I would learn/take from their setup what seams good. But improve the whole mainboard/cpu combination i guess ... DDR3 is also outdated. If you manage it to replace with e.g. http://www.asus.com/Motherboards/X99E_WSUSB_31/ you will have a awesome combination i guess.
Remember, their focus was on creating a storage solution, mining has some additional requirements.
Also no GPU is possible in that setup, all PCIe used for controllers. And GPU is highly recomned with so much drives/capacity.
@botan The Seagate Archive 8TB drive is like made for Burst mining, SMR is perfect in this case. As you only write once. Also the other technical specifications fit with the needs of burst mining.
Hmm i got reply from https://backuppods.com:
I saw that i maybe possible to order only parts of
Storage Pod 6.0
I would like to use one EVGA 750w power supply only for harddrives.
Would it be possible to order just the following cables?
Cable Harness – PSU1
24-pin – Backblaze to Pigtail
24-pin – EVGA NEX750G Connector
I can sell you drive guides, backplanes and SATA cards for parts.
So, they does not seam to be interested ...
Next i will try is to contact the manufactor of the cables directly :-)
But i fear they also have no interest in selling just one :-(
There's a cable that can series connections of power supply from one HDD to another up to 5 I think. So, every SATA power from the PSU can be used for 5 HDDs. Now, I just have to remember where is that. But, it's there. I saw it in facebook someone selling in a group im in. But, it's a local seller. :)
@jervis Guess that's not the same, i want to use your solution + using the VGA power supplies. My experience is, that attaching more than ~12 to 15 drives the 'normal' way does not work stable.
I wish I could afford to do this.
I have heard of people running a good voltage regulator off of the 12V line, the problem is that the 5v line rarely has enough current for that many drives.
Would you be running linux?
Windows has a maximum 26 drive letter limit, virtual machines maybe?
Or RAID? that could be really fast and combine multiple drives to one letter.
a bunch of small cheap proxy miners?
I am a fan of blagos software with the proxy
Just some food for thought! sounds like a fun project
@Colby3316 OH! In addition, does mining with the GPU + HDD produce more Burst than mining with only the CPU + HDD?
I know it makes it faster, but I still don't understand the role of the CPU/GPU entirely outside of the inital plotting.