I have the following setup:
- A Synology DiskStation DS418 on which I used Seagate Skyhawk hard disks and then Kingston UV500 SSDs.
- An ASUS ROG Rapture GT-AX11000 wireless router with support for Link Aggregation, and a 2.5 Gbps Ethernet port.
- A desktop PC with an ASUS XG-C100C network card, connected to the router, on the 2.5 Gbps Ethernet port. The network card is capable of 10 Gbps Ethernet connections, and it works well on 2.5 Gbps too.
I enabled Link Aggregation on the NAS and transferred data between the NAS and the desktop PC, and then compared transfer speeds, with the Link Aggregation enabled and with it disabled. I ended up with the following results:
When using the Kingston SSDs:
when using the Seagate HDDs:
I did not expect my transfer speeds to double, but the speed gain seems too small - 1% or less. It's just too little.
Can you share with me why Link Aggregation does not help in improving the transfer speed in a significant manner?