On Sun, 12 Oct 2025, Dan Ritter wrote: > [email protected] wrote: >> i want to try a sata port multiplier >> lspci says i have ASMedia Technology Inc. ASM1061 SATA IDE Controller (rev >> 02) >> i've seen some post that suggest there may be compatibility issues >> so i'm asking if anyone is using one of these things >> any suggestions >> >> i know this is stupid >> and a bad idea >> and a waste of time and money >> but >> i have lots of time and a burning curiosity > > It's not necessarily a bad idea; if you have, for example, a > large pile of disks where full SATA speed access is overkill, a > port multiplier can be a reasonable access method. > > SATA3 is 600MB/s, and a typical rotating disk maxes out at > 150MB/s or 250MB/s (on the newest). So 2:1 is reasonable, and > 4:1 can be reasonable, depending. > > The particular problem that you will likely have, though, is > that the ASM1061 is not very good, and there are lots of reports > of problems plugging them into port multipliers. > > If you can swap it out to another PCIe based disk controller, > you'll be in luck... but if you can do that, you might want an > LSI 300X PCIe controller, which can do SAS and SATA and > frequently comes in 8 and 16 port variants, thus no longer > requiring a port multiplier in many scenarios.
swapping the controller is out this is a single board computer with builtin sata
