How to Solve Thecus D0204 and JMS539 Auto-Disconnect Issue

Thecus D0204 is a Direct-attached storage (DAS) supports two 2.5″ hard drive in RAID 0, 1, JBOD, and two individuals. According to “USB 3.0加持,Thecus D0204小DAS跑得快” on T客邦, it use JMB390 for RAID and JMS539 for SATAII to USB 3.0 bridge.

My problems is it will automatically disconnect and reconnect immediately with OSX. But I was wrong, there are already many posts about the same issue. It’s due to the bugs in JMS539 according to “[心得] Mukii3.5吋硬碟外接盒起死回生紀錄” on 批踢踢實業坊. Continue reading

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