Having trouble with APM. 4 of 5 disks do work now and go to standby. Different disks behave different with hdparm...
Last disk which doesn't go to standby with hdparm -B set to 254 and 255. When using -B 127 it does go to standby, but much faster as set (all in GUI) .
So would like to experiment with -B (253) and -S.
But settings for -B in GUI are limited and can't just edit /etc/hdparm.conf, because changes will get lost.
I recently discovered "omv-salt deploy run fstab" when needed to change something there. Can I use omv-salt to make changes to /etc/hdparm.conf permanent? Or any other way to do this?
@votdev I know you're very busy developing, hope you can help though!
Some info here
Have 2 of these Samsung disks, and setting APM to 255 was solution for that. For the other to WD drives I use 254 (which says APM is not supported with hdparm -B /dev/WD drive, so they will probably work with 255 as well i guess).
But the one not willing to go to standby with APM set @ 255 and 254 is a SAMSUNG HD753LJ...
For SAMSUNG HD753LJ: when set to -B 255 in GUI and after use command: "hdparm -B /dev/sdf" disk does go to standby in exact time set in GUI...
There is a different behavior between boot/reboot and put system in and out of stand-by regarding disks going to stand-by.
With boot/reboot all WD disks go to stand-by. When system has been in stand-by and woken up, WD disks don't go to stand-by.