rt-ac88u + synology ds 415+ link bonding

[pete y testing]

hi guys

have the above setup and has enabled link bonding in the 88u and setup bonding in the 415+ but im not seeing any extra throughput

have 1 ethernet connected comp that can download at 117 MB/s

if i start a second download on a different ethernet connected comp of the same file the first slows to about 70 MB/s and the second 40MB/s

so its apparent the bonding isnt working

the 415+ is set for

IEEE 802.3ad dynamic link aggregation

see

https://www.synology.com/en-global/...p/DSM/AdminCenter/connection_network_linkaggr

or is there a different setting i should use

hdd are setup in jbod mode

pete

 

[L&LD]

JBOD does not increase disk performance and is one reason may not be seeing a difference.

You need a RAID0/5/10 with enough disks (3 or more) to see disk performance increase more than an 1GbE Ethernet connection can do.

Or, have the disk be all ssd's.

 

[pete y testing]

hi

atm they are just 4 x 1TB hdds 7200 spin but i didnt think the hdd's where the issue and the 1 gig limit was the ethernet and that turning on bonding should double that speed irrelevent of the hdd's , its just im not seeing any improvement , might throw the ssd's in it and see if it makes any difference but i suspect its not the frives but rather the bonding not actually working

pete

 

[pete y testing]

just tried

adaptive load balancing and balanced xor with the same results , just hits the same 117MB/s wall shared between the downloads , will try and reformat with raid and see how it goes with these drives first

 

[pete y testing]

further changing to synology hybrid raid see's the same 117 MB/s limit no matter if its 1 orr 2 downloading , so the bonding is not working

so checking the traffic monitor there is traffic on both bond 1 and bond 2 with 2 simultaneous reads coming from the 415+ ( from different comps ) but the are approx 1/2 of the 117MB/s max

suggesting that the bond is working but the supposed 2000mbps is not as its still limited to 1000mbps / 117 MB/s max

 

[sfx2000]

have the above setup and has enabled link bonding in the 88u and setup bonding in the 415+ but im not seeing any extra throughput

have 1 ethernet connected comp that can download at 117 MB/s

if i start a second download on a different ethernet connected comp of the same file the first slows to about 70 MB/s and the second 40MB/s

Wonder if you're saturating the SoC switch fabric - should be getting better rates than what you're seeing...

What happens if you move from the RT-AC88U to a managed switch that support link aggregation?

 

[sfx2000]

And what happens with iPerf2/3 and iozone?

http://www.iozone.org

And if you're doing SMB/CIFS copy (read/write), is SMB3 enabled on the NAS?

 

[pete y testing]

What happens if you move from the RT-AC88U to a managed switch that support link aggregation?

havnt got one so will have to go look for one to test

And what happens with iPerf2/3 and iozone?

will test this later in the week when im back home ( on the road for work atm ) , i generally only test with smb copy and paste

And if you're doing SMB/CIFS copy (read/write), is SMB3 enabled on the NAS?

will check this as well , is it normally on by default ?

pete

 

[sfx2000]

havnt got one so will have to go look for one to test


will test this later in the week when im back home ( on the road for work atm ) , i generally only test with smb copy and paste


will check this as well , is it normally on by default ?

pete

Some do, some don't - and typically it's an option to enable - backwards compat thing...