rankaiyx

Thank you, but this method has also been tried. The hard drive SZCT is at least 60 minutes(36000), and I used sg_raw to force a timeout, but it didn't work. Of course, stanbyz has been set to 1 to enable it.

There's no echo, and the hard drive doesn't spindown.

LSI 3081 IT I have tried a lot of methods, including the previous smartctl 7.2, but it didn't work all the time, so I decided to give up. I plan to use them as cold backup disks.

No, my NAS os is Arch Linux.

It didn't work. And I also tried "sg_raw /dev/sdd 1b 00 00 00 30 00", didn't work too. https://www.seagate.com/files/docs/pdf/en-GB/whitepaper/tp608-powerchoice-tech-provides-gb.pdf https://man.archlinux.org/man/extra/sg3_utils/sg_raw.8.en "sg_start -S " and "sg_start -s" are valid.

My "Seagate Constellation ES ST32000444SS" needs NOTIFY (ENABLE SPINUP) to spinup , too. I found that I can use "sdparm_64.exe --command=stop PDx" to spindown it, and it can be automatically spinup by Win server 2019 when there is a disk request. This scheme is feasible. I want to know if its mechanism can be transplanted to UnRAID?