assistantodin wrote: ↑
Wed Feb 05, 2020 11:59 am
Ah well, back to refreshing the page for the radxa hat i guess! Thanks for the advice all
Judging by a quick google that HAT won't offer any performance advantage over the equivalent number of USB to SATA dongles. Plus the claim that "Utilize two independent USB3 buses on Raspberry Pi 4" is misleading given that the 4B's USB3 ports connect back to the SoC via a single PCIE lane.
There are other issues I can see what that HAT too, especially if opting for 3.5" drives. (Power four HDD off a single FDD power connector?)
Sorry. Don't want to seem too negative, just my interpretation of their claims.
For what it's worth I built my 4B based NAS using an old mini-ITX cube case, a couple of 3.5" drives, a couple of sub £10 USB 3 to SATA dongles, and a couple of SATA extension cables. Everything runs off the ATX PSU and the extension cables were only needed because the dongles were of the combined power and data connecter type so I couldn't plug in both the dongle and the ATX power connection at the same time.
No RAID or JBOD but those can be done in software if I need them later.
Attempts to contact me outside of these forums will be ignored unless signed in triplicate, sent in, sent back, queried, lost, found, subjected to public enquiry, lost again, and finally buried in soft peat for three months and recycled as firelighters