Tutorial[ Seagate Disks ]: Install Seagate OpenSeaChest Utilities

[tuxd3v]

The APM mode 127, sends the disk in standby, relatively fast..
I don't know if you remember that I asked you about if you had something else Running from the IronWolf disk?

The hard disk is used only for data> music, movies, data.
OS runs on the eMMC 64 GB.

For the test, I have the hard drive set to 128, SMART completely disabled. > No effect / same problem.
Hard disk changes to standby mode after 2 minutes.
OMV Forum report

Hello,
You can put it do  254 but then the disk will be always spinning , waiting energy even when you are not using him..
Stand By Means stop rotating, and only the controller has some circuits waken, to start the disk when needed..

If you do  hdparm -B 254 the disk go to sleep in the same way?
If then...
The reason for the Setup via a usb-sata converter with OpenSeaChest is Valid..