RS2211RP+ Link aggragate only 106mb/s

[matarvai]

We have RS2211RP+ with RX1211rp unit with 22 2TB 7200rpm WD Black harddrives in RAID5. One volume.
We had only one LAN connected before, and we get file transfer speeds to 87mb/s. Now we bought HP 2920al 48G switch, did trunk port for Synology and activated link aggregate on Synology. Still we don't get even close to the speeds that is posted on Synology web page. We have got 106mb/s when copy data from server with Samsung SSD830 256GB
Windows file upload performance in Synology page is 198,10 how come we don't get even close to it?

[x-cimo]

Link aggregation only help with more than 1 clients, (eg more than one computer).

Are you using a single computer to test, or 2 computers at the same time?

[chumeniuk]

On my DS1511+ with link aggregation turned on and switch configured for link aggregation, I only get 106mb/sec out of mine also. My biggest concern is that DSM only shows 1000mbs even with everything turned on for link aggregation.

[frankM]

There seems to be misconception about what link aggregation really is. Please refer to wikipedia and read on LACP for a detailed explanation.

In short, aggregating two 1GB ports won't give you the equivalent of a single 2GB/s port, effectively making a single connection twice as fast. It rather splits the load of two (or more) separate requests to the available ports, thus making only sense if you accessing files from more than a single machine.

Example given:
With linked ports on a DS you can access files from two machines with 1GB/s EACH. A single machine will still only be able to access files with 1GB/s, even if you link the ports on the machine as well.

For a single connection, 1GB/s is as fast as it gets. In my home network, I setup my 1512 with LACP enabled on a HP 1810 managed switch and can access files from a variety of machines and TVs simultaneously without being limited by a single 1GB/s connection that has to serve all clients. Instead, the DS uses both ports to serve the clients. That's what LACP is for and nothing else.