My USB speed is very slow, or sometimes gets randomly interrupted?
Posted: 16 May 2020, 17:52
Troubleshooting
Applicable models:
D2-300
D2-310
D4-300
D5-300C
D5-300
If your TerraMaster USB DAS storage device has been correctly installed, but the speed of copying files is very slow (for example, only 5~20MB/s, or even slower), or sometimes even randomly interrupted.
Based on the cases we have served and observed in the past 10 years, we have summarized the following common causes and solutions:
Troubleshooting for random interruption during data transmission:
1. TDAS with RAID function may have incompatibility problems with old hard drives with data or random interruptions due to other factors.
①It is recommended that you try to replace the hard disk with a new one.
②Back up the data of the old hard disk, and then install the old hard disk on the TDAS. And try to create a new RAID array and format the hard drive.
Notice! This operation will clear the hard disk data, please back up the data before performing the operation.
2. There are many brands and models of Windows PC computers. The speed and quality of the USB interfaces or lines of different brands and models of computers may be inconsistent. When the USB interface of the computer is connected to an external hard disk box, there may be random interruptions during copying. It is recommended to eliminate the problem according to the following steps :
①The signal of the USB interface of some Windows computers is weak, it is recommended to try another USB interface; or try another computer.
②The public USB driver is pre-installed on the computer, which is not compatible with the computer motherboard. It is recommended that you go to the computer to download and install the correct USB driver.
3. It may be caused by the use of an incompatible USB splitter or USB HUB docking station. It is recommended that you use the original cable to connect to the USB interface of the computer.
Troubleshooting for slow data transmission:
1. It may be that the copied files are all small files! If the files are all single small files (such as 10KB or 100KB files), the copy speed will be greatly reduced, which is a normal phenomenon. Please replace a single file larger than 10 GB and test the speed again.
2. It may be the failure of the hard disk installed in the DAS product or the hard disk of the computer itself. Please use the hard disk health detection tool to test and eliminate it, for example: HD Tune.
3. The USB cable used is not the original one, please make sure to use the original USB cable.
4. The USB interface of the computer is faulty, please confirm that you are using a USB 3.0 / USB 3.1 high-speed interface instead of a USB 2.0 interface, and try another USB interface of the computer.
5. Interference from other switching devices, connecting TDAS through a USB HUB splitter or a docking station may cause slow speed. Please try connecting directly to the USB port of the computer.
6. Update the driver of the USB port on your computer.
7. For models that support RAID or implement RAID through third-party software, it is likely that the hard drives are synchronizing, which will take up most of their performance. Please wait for the RAID synchronization to complete before testing the speed again.
Applicable models:
D2-300
D2-310
D4-300
D5-300C
D5-300
If your TerraMaster USB DAS storage device has been correctly installed, but the speed of copying files is very slow (for example, only 5~20MB/s, or even slower), or sometimes even randomly interrupted.
Based on the cases we have served and observed in the past 10 years, we have summarized the following common causes and solutions:
Troubleshooting for random interruption during data transmission:
1. TDAS with RAID function may have incompatibility problems with old hard drives with data or random interruptions due to other factors.
①It is recommended that you try to replace the hard disk with a new one.
②Back up the data of the old hard disk, and then install the old hard disk on the TDAS. And try to create a new RAID array and format the hard drive.
Notice! This operation will clear the hard disk data, please back up the data before performing the operation.
2. There are many brands and models of Windows PC computers. The speed and quality of the USB interfaces or lines of different brands and models of computers may be inconsistent. When the USB interface of the computer is connected to an external hard disk box, there may be random interruptions during copying. It is recommended to eliminate the problem according to the following steps :
①The signal of the USB interface of some Windows computers is weak, it is recommended to try another USB interface; or try another computer.
②The public USB driver is pre-installed on the computer, which is not compatible with the computer motherboard. It is recommended that you go to the computer to download and install the correct USB driver.
3. It may be caused by the use of an incompatible USB splitter or USB HUB docking station. It is recommended that you use the original cable to connect to the USB interface of the computer.
Troubleshooting for slow data transmission:
1. It may be that the copied files are all small files! If the files are all single small files (such as 10KB or 100KB files), the copy speed will be greatly reduced, which is a normal phenomenon. Please replace a single file larger than 10 GB and test the speed again.
2. It may be the failure of the hard disk installed in the DAS product or the hard disk of the computer itself. Please use the hard disk health detection tool to test and eliminate it, for example: HD Tune.
3. The USB cable used is not the original one, please make sure to use the original USB cable.
4. The USB interface of the computer is faulty, please confirm that you are using a USB 3.0 / USB 3.1 high-speed interface instead of a USB 2.0 interface, and try another USB interface of the computer.
5. Interference from other switching devices, connecting TDAS through a USB HUB splitter or a docking station may cause slow speed. Please try connecting directly to the USB port of the computer.
6. Update the driver of the USB port on your computer.
7. For models that support RAID or implement RAID through third-party software, it is likely that the hard drives are synchronizing, which will take up most of their performance. Please wait for the RAID synchronization to complete before testing the speed again.