What should I do if I'm experiencing Slow File Transfer issue over Ethernet/thunderbolt/USB?
Applicable Products:
- All NAS series
If you meet slow file transfer issue over the network, follow the steps below to improve the performance.
In QTS
Log in to QTS as an administrator
Open Control Panel
Go to Storage & Snapshots > Storage > Disk/VBOD> Performance Test
- Perform Sequential Read Test and replace the disk which has low disk speed (for example: less than 80 MB/s)
Open App center and Disable unused apps to release the resource.
Connect the NAS and Windows PC directly with an ethernet cable
Open Windows File explorer/macOS finder to access the NAS shared folder
Copy an ISO file from the NAS to PC and do at the same test to copy ISO file from PC to the NAS.
Slow speed on NAS, could be one of the following reason.
The cable doesn't meet the requirement. (For example, you will need a CAT6 cable for a 1000Mbps network), try replace the cable.
Slow on NAS, you can tweak the following settings to improve the performance.
Encryption will slow down the speed
- Use non-encrypt the shared folder and volume
- Disable SMB encryption if there is
- Disable SSD cache acceleration
Use SSD instead of the Hard disks
Use Static Volume instead of Storage pool/Volumes.
Use RAID 0 or RAID 6 to improve the RAID throughput.
Slow speed on the PC, could be one the following reason.
Write speed on the PC is slow, you can confirm the writing read using CrystalDisk.
Ethernet port doesn't provide enough speed, you can check the Link Speed in windows using the following command in power shell.
Get-NetAdapter | select interfaceDescription, name, status, linkSpeed
