![]() ![]() That might not be true in all circumstances, but seemed right to me at the time. I felt that long-term, connected for weeks and months at a time sata would be more stable. Personal prejudice from working as a computer technician.I ultimately switched to doing everything sata based for several reasons. But it’s usually very high, more than 100. There is a limit to the number of usb devices you can connect per controller. All my current 17 farming drives are sata connected, including those first 2 that I shucked with the plots on them, and it all worked fine. But remember that inside of just about every external hard drive is an internal hard drive that will work just fine outside of it’s shell. I can see the appeal of external hard drives and I initially started out with 2 myself. There are limitations, of course, but that should give you some idea of what’s possible. ![]() a single four-lane mini-SAS connection to a 24-bay disk shelf, and a second mini-SAS connection from that shelf to a second shelf, etc. Most disk shelves have SAS expanders built into the backplane, so you can run e.g. SAS HBAs and expanders also give you the ability to have external ports for connecting disk shelves, which can themselves be chained together. That being said, with a cheap LSI SAS2008-based HBA and couple expanders like the Intel RES2SV240 or HP 727253 you can very easily scale out to dozens or even hundreds of drives-assuming you can figure out power, cooling, etc. SAS expanders also tend to be of a higher quality, but they can get a little pricey. (It can also add a lot of resiliency, but that’s not really a requirement for Chia farming.) SAS HBAs are usually of a higher quality and easier to find, and most will work fine with both SAS and SATA drives. There is definitely a learning curve with SAS, but it can add a lot of flexibility to your setup. For example you could get a card that goes into a x8 slot and adds eight SATA ports.Ĭan be confusing to understand SAS setups and you need additional components like SAS controller and Expansion cards You can add additional ports by installing additional controllers in your motherboard’s PCIe expansion slots, or you can use expanders which typically just need power. Most consumer motherboards have four or six SATA ports onboard, integrated into the chipset server motherboards frequently have 10 or more. SATA controllers or HBAs (host bus adapters) use PCIe lanes. Let me know what solution as worked best for you and what benefits does each storage solution have? SAS: Can find cheap drives since usually used in data center, a lot of bulk available but can be confusing to understand SAS setups and you need additional components like SAS controller and Expansion cards ($25/Tb) new ($10-$15/Tb) Used SATA: Feel like this is a better long term solution but Price per TB can still feel expensive at current Chia Prices.($20/Tb) new ($15/Tb) Usedĭoes SATA use PCIe Lanes? Would I have to get a CPU with a lot of PCie Lanes available such as Threadripper or an old Server? ($20/TB) New ($15-$20 Used)Īre there any limitations to this? max amount of External Drives supported? Here are my Opinions on each setup so far, feel free to correct me as I am still new at this:Įxternal HDD: easy setup, plug and plot but expensive price per TB. ![]() ![]() I am relatively new to this and only have 2 external 12 Tb HDD but want to slowly expand to something around 300tb+. Looking to expand my farm but not sure what is the best long term solution for best bang for buck and expandability. Just curious if anyone has crunched the numbers on this. ![]()
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