TRIM on an external SSD for the RPi

[salzrat (Michael)]

I have DATA SET MANAGEMENT errors due to TRIM:

DATA SET MANAGEMENT errors

I am running newest Homeassistant version on hassio in a Virtualbox container on a Macbook Air. The image is on an external Samsung SSD 840 EVO formatted using APFS. I often get these errors in the syslog: [Mon Jun 3 00:44:23 2024] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [Mon Jun 3 00:44:23 2024] ata1.00: failed command: DATA SET MANAGEMENT [Mon Jun 3 00:44:23 2024] ata1.00: cmd 06/01:01:00:00:00/00:00:00:00:00/a0 tag 7 dma 512 out …

While it cannot be disabled completely due to the read-only system filesystem, I have found that

systemctl stop fstrim.timer

should disable trim for the current session.