On Fri, Nov 12, 2021 at 4:55 PM Rich Freeman <ri...@gentoo.org> wrote: > > On Fri, Nov 12, 2021 at 5:57 PM Mark Knecht <markkne...@gmail.com> wrote: > > > > which I don't think is available yet but will run in the $250 > > range without the drives. It appears that the motherboard > > they designed takes the PCIe to a card with a PCIe-to-SATA > > controller which is how you get better performance. > > With the USB3 solution your $40 SBC can directly access a hard drive. > Now we're talking about adding $250 of hardware to get to SATA. > > Honestly, if you're going to start spending that much I'd really > question why we're not just using a PC. > > I would love to see more reasonably-priced ARM options with decent IO > and RAM. If you want ARM and 32GB of RAM good luck finding something > for under $1k. For anything that runs 24x7 the power savings are > quite significant with ARM, but you definitely give up performance and > IO and of course general flexibility, If you're going to start > spending hundreds of dollars on ARM unless it is as some kind of > prototyping setup I'd really question why you wouldn't just use > inexpensive PC hardware. Get something with integrated graphics and > you have lots of PCIe lanes available for IO. You can get used HBAs > fairly inexpensively as well, though I do question the reliability of > some of that stuff (used). > > One other thing, I've used LSI HBAs with Rockpro64 SBCs (which have > PCIe), and the HBAs use a ton of power. The RK3399 might use very > little power (esp idle), but that LSI HBA is practically a space > heater even when idle. Maybe their newer stuff is more efficient, but > you're not going to get those for $30 on eBay. > > -- > Rich >
No disagreements at all. I was only providing 1) something for the OP to look at, and 2) info on your point/question/observation about RP4 having or not having PCIe. As for YouTube 'influencers' I take them with a grain of salt. This guy was given preproduction product which almost certainly was free and given so as to produce positive press. Mark
