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.

Quickly Reset the Hard Disk in your ThecusOS Device as New

After testing NAS running ThecusOS 6, I want to clean my hard disk. Thecus provides a neat tool to do this job. It’s easier than resetting hard disk in QNAP.

Thecus N2520 with Mac OSX File Transfer Performance Report

Thecus Windows Storage Server 2012 R2 is slow with OSX but how about ThecusOS 6? It’s based on Linux and perform well in my previous tests. Maybe it is a better alternative solution if you preferred Thecus. Let’s see how it compete with others.

Using NFS to Share Files on Thecus Between OS X and Linux

I choose to use Network File System aka NFS to share files between OS X and Linux because it’s much faster than Samba. But there is one more thing I need to handle: file and folder permissions.

Thecus W5000 and QNAP TS-119PII with Mac OSX Wireless File Transfer Performance Report

Recently, I bought a Asus RT-AC51U for Android USB tethering and 5GHz features. I also bough some new wireless USB device. Two D-Link DWA-171 A1 are for Mac mini and NAS. One D-Link DWA-131 E1 is for Lenovo C440.

Because DWA-171 A1 is compatible with OSX, Windows Server 2012 R2, and QTS but DWA-131 E1 isn’t for QTS, I decide to test wireless transfer between Mac mini and two NAS.

Thecus W5000 with Mac OSX File Transfer Performance Report

After Thecus Windows Storage Server 2012 R2, I am expecting to see how it competes with others in real-world. Recently, I have a chance to test W5000 with Windows Storage Server 2012 R2 Essentials.

Prepare Your NAS File Transfer Performance Test with Mac OSX Client

There are already many NAS performance test available. Because I need real-world file transfer rate for my Mac mini (Late 2012), I decide to create my own sample data and procedure to meet my needs. Here is how it works:

Thecus Windows Storage Server 2012 R2

Thecus just create a new product line, Thecus WSS, to support Windows Storage Server. Here are some information I just collect.

2015/3/29 Update after testing a Thecus W5000.

Thecus N7710-G as a ZurmoCRM Application Server Performance Report

In Thecus N2800 as a ZurmoCRM Application Server Performance Report, I have mentioned if you need faster load time, get a Thecus device with a more powerful processor. Here is comes.

Thecus N7710-G File Transfer Performance Report

Thecus N7710-G is using ThecusOS 5.0 x64 and support ECC memory which is designed to prevent internal data corruption. The build-in 10-Gigabit Ethernet is also very impressive. It’s a pity that my Lenovo ThinkCentre Edge 72z is not expandable or I may see its full potential.

Below is the unix name and version info on Thecus N7710-G:

N7710-G:~# uname -a
Linux N7710-G 3.4.73 #1 SMP Tue Jan 7 12:29:11 CST 2014 x86_64 GNU/Linux
N7710-G:~# uname -m
x86_64

Anyway, let’s see if it how fast it could be on file transferring!