Asustor AS5304T slow transfer speed help

eidolon

eidolon

eidolon

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I have an Asustor NAS with 2 x 2.5Gbe network ports. In it are 4 fast hard drives setup in RAID10. On my desktop I have a dual Intel 2.5Gbe network card. Connecting the two is a Tenda TEM2010F 2.5Gbe switch.

On the Asustor I've set up SMB multichannel and link aggregation and on the Tenda I've selected the static link aggregation option for ports 7 and 8.
I've plugged my PC into ports 5 and 6, and the NAS into 7 and 8 (the static aggregations ones) yet I only get 250MB file transfer speeds, I would've thought that I got closer to 500MB

What am I doing wrong?

SMB multichannel enabled
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Both NICs showing 2.5Gbe
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TOpSR9U.png


Link Aggregation enabled

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But still only 200MB
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As I understand it (and I’m happy to be wrong), link aggregation doesn’t actually make a single file transfer faster, what it will do is allow multiple file transfers simultaneously across the aggregated link at effectively double the speed. So one file would go over at full speed for one link only, two files would also go over at full speed because it transfers one file at full speed in each channel.

So if that is correct, then your speeds would be correct and if you transfer two files you should still see 250MB/s on each channel.

If that is correct then your setup is working perfectly.

But as I say, I may be wrong.
 
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WJA96 said:
As I understand it (and I’m happy to be wrong), link aggregation doesn’t actually make a single file transfer faster, what it will do is allow multiple file transfers simultaneously across the aggregated link at effectively double the speed. So one file would go over at full speed for one link only, two files would also go over at full speed because it transfers one file at full speed in each channel.

So if that is correct, then your speeds would be correct and if you transfer two files you should still see 250MB/s on each channel.

If that is correct then your setup is working perfectly.

But as I say, I may be wrong.
Click to expand...
You are correct, however multichannel SMB will make use of aggregated links and OP should be getting 5 Gbps - if everything is set up correctly.

I've never tried it myself, but I've read it can be quite difficult to get working properly.
 
eidolon said:
In it are 4 fast hard drives setup in RAID10.
Click to expand...
That likely won't be fast enough, as depending on implementation you'll likely only be reading from 2 of them.

WJA96 said:
As I understand it (and I’m happy to be wrong), link aggregation doesn’t actually make a single file transfer faster, what it will do is allow multiple file transfers simultaneously across the aggregated link at effectively double the speed.
Click to expand...
Older link aggregation worked as you described, but SMB multichannel was designed to combine the separate "channels". Unfortunately it's a Microsoft technology, so only guaranteed to work between 2 Windows operating systems (and even then it can be git and miss), 3rd party implementations may have further issues
 
What speeds are you expecting off two hard drives? 200MB/s doesn't strike me as wrong. I also don't think round-robin link aggregation as opposed to LACP is going to work well for this.
 
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Caged said:
What speeds are you expecting off two hard drives? 200MB/s doesn't strike me as wrong. I also don't think round-robin link aggregation as opposed to LACP is going to work well for this.
Click to expand...

ChrisD. said:
Good spot.

Networking: Link Aggregation - ASUSTOR NAS

An overview of link aggregation and how to set it up on your NAS.
www.asustor.com www.asustor.com
Click to expand...

So I'm guessing it should be set to:
XOR: Transmits based on the default simple transmit hash policy. This mode provides load balancing and fault tolerance.
This mode supports Static Link Aggregation.
Click to expand...

As OP has configured Static Link Aggregation
 
I tried all of the different link aggregation options but performance was the same on them all so my suspicion is that link aggregation only really helps if multiple PCs access the NAS simultaneously.
Out of curiosity I’ve swapped to a different 2.5Gbe switch (QNAP QSW-1105) and turned off link aggregation but kept SMB multichannel on. Same results with this switch too.

In this video they get 430 Mb so not sure why mine is so slow.
 
Could something like SMB Signing or SMB Encryption be enabled which is slowing down the transfer? I could be totally off point here so I do apologise if I'm sprouting rubbish. I recally having somethin similar on my Synology NAS so turned it off. Not sure if it was a NAS setting and/or Windows OS setting.
 
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