Dave Russell

Disable the syno_hdd_db schedule for now. I'll think up some things for to test with and without the script so we can see what the difference is.

Can you download the following test script: https://github.com/007revad/Synology_HDD_db/blob/test/nvme_check.sh Then run nvme_check.sh and report back the output. Then enable the syno_hdd_db schedule, reboot, run nvme_check.sh and report back the output.

It looks like either the WD Black NVMe drive is faulty.

**EDIT** You can skip this comment and the next 6 comments and jump straight to https://github.com/007revad/Synology_HDD_db/issues/237#issuecomment-1982148975 --- I think I know what's going on. In DSM 7.2.1 Update 2 or...

It would be interesting to see what the following commands return: ``` /usr/syno/lib/systemd/scripts/nvme_power_state.sh --list -d nvme0 ``` ``` /usr/syno/lib/systemd/scripts/nvme_power_state.sh --list -d nvme1 ```

Synology does have a script to set the power limits but I've not tried it because I haven't needed to until now: ``` /usr/syno/lib/systemd/scripts/nvme_power_state.sh --help Description: support tool for set...

There are 5 power states that can be set and scheduled... but I assume those are set by DSM automatically from the power_limit. ``` /usr/syno/lib/systemd/scripts/nvme_power_state.sh --list -d nvme0 ========== list...

I can easily change the power limits for any Synology model that has a model.dtb file, like the DS723+... but we would only want to increase it just enough to...

You could also try disabling game mode on the WD Black NVMe drive. You'd need to do that while it's in a PC. https://9to5toys.com/2022/09/27/wd_black-sn850x-review/ I probably should have mentioned this...

I was thinking about this and remembered the WD Black NVMe drive only goes missing when you have syno_hdd_db scheduled to run at boot. So clearly something the script does...