HDD Sleep/Spindown/Standby

[SmallBarky]

One closed

[Not Accepted] Functioning standby (spindown) mode of SAS hard disks by corresponding GUI settings

Problem/Justification TrueNAS Scale 24.10 cannot put at least one HGST SAS HDD into the power condition “Standby” (spindown). It would be helpful / easier if this would also work with HGST SAS HDD’s using sdparm in the background of the GUI. Impact With infrequent use of a pool, … the advantage of a non-spinning disk may outweigh the disadvantage. User Story I use a SAS HBA “LSI (Avago) 9201-16i” with IT Mode Firmware 20.00.07.00 in a TrueNAS Scale 24.10 setup and can use sdparm to set the …

One still open

Add an option to force system managed spindown for disks

Problem/Justification (What is the problem you are trying to solve with this feature/improvement or why should it be considered?) When you use LSI HBA cards in IT mode, like many users who run TrueNAS do, by default, from my own testing with Toshiba MG09 series drives, when the system is properly shut down, the LSI controller do not seem to send a command to the disks to spindown, which causes them to perform “Emergency Unload”, that is, turn off as if you yanked the power cord out of the syst…