Fixing stupid JMS578 HDD Enclosure issues

The stupid state of JMicron drive interface IC’s If you have ever tried to use a USB3.0 hard drive enclosure based on a JMicron chipset with TrueNAS (formerly FreeNAS); you may have come across multipath errors or serial numbers that make no sense. Or simply SMART and TRIM not functioning. Additionally, you may have run into the stupid way these units power down the drives after 10 minutes of inactivity forcefully....

January 10, 2021 · 5 min · Ben V. Brown