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Forum Discussion
link aggregation between two NAS'?
I have a synology with 4 ports and a RN312 with 2 ports. Can I connect 2 ethernet cables directly between these 2 NAS' to speed up file transers to 2Gbps?
I bonded ports 3 & 4 in the Synology....
Blanker-2 wrote:
Ok. I have been reading that people have been directly connecting from their pc to the 10GbE card in the nas and then using one of the four 1GbE ports on the nas to the switch (for pc internet and access to lan).
That sounds more like using the Synology as a router (similar to the Microsoft ICS - https://support.microsoft.com/en-us/help/324286/how-to-set-up-internet-connection-sharing-in-windows-server-2003).
But if you want to get the best performance with link aggregation, just get a smart switch - ideally one that has enough ports to connect all the ports in all your devices. You can get an 8 port smart switch for about $60 US, and get a 16 port one for about $120.
Blanker-2 wrote:
Speed is going to be limited by the weakest link. Pc is reading from an ssd, so 500MBs, but the writing to the raid array on the nas I'm guessing will be the bottleneck here.
The CPU speed in the RN312 could also limit performance.
Faster speeds are certainly possible. But you'd need something faster than gigabit ethernet running in at least one of your PCs to be make much use of it.
FWIW, I see 500-600 MB/s speeds with NAStester on my own setup. That's between a PC I use as an application server and my RN526x. Both are equipped with 10 gigabit ethernet and are connected through a small 10 gigabit switch. The NAS uses 4x6TB RAID-5 with WD60EFRX disks.
10GBase-T is still too expensive for me to put everywhere (and laptops don't have it). So our other PCs all run gigabit ethernet, and they are limited to ~100 MB/s (and of course less when using WiFi).
I assume u get 500-600MB in actual transfers? This is good to know. Maybe I will start off with LAG this way I can use it with the RN316 if/when I go 10GbE.
What do u recommend for a NIC for the pc? Some of the dual nic cards are almost the same cost as the 10GbE nics.
What do u recommend for a NIC for the pc? Some of the dual nic cards are almost the same cost as the 10GbE nics.
Blanker-2 wrote:
What do u recommend for a NIC for the pc? Some of the dual nic cards are almost the same cost as the 10GbE nics.The Aquantia AQC-107 equipped 10 GbE 10GBase-T cards are a good choice. Avoid the Tehuti TN-4010 variants due to driver issues and sometimes average performance.
Alternate choices are cards with SFP+ interfaces, for shorter distances to be connected using SFP+ DAC (direct access) cables.StephenB wrote:
Blanker-2 wrote:
Ok. I have been reading that people have been directly connecting from their pc to the 10GbE card in the nas and then using one of the four 1GbE ports on the nas to the switch (for pc internet and access to lan).That sounds more like using the Synology as a router (similar to the Microsoft ICS - https://support.microsoft.com/en-us/help/324286/how-to-set-up-internet-connection-sharing-in-windows-server-2003).
No routing involved at all. Just dedicated 10 GbE networks, typically direct connections, with dedicated TCP/IP subnetworks.
With the QNAP Virtual Switch we can do much more - flexible software defined networking does offer for example the ability to combine eg. a 1+1 Gb LAG and a 10 Gb into the same L2 network.StephenB wrote:
10GBase-T is still too expensive for me to put everywhere (and laptops don't have it). So our other PCs all run gigabit ethernet, and they are limited to ~100 MB/s (and of course less when using WiFi).
10 Gb Ethernet does require to much power for mobile devices like notebooks. We can expect MultiGig (like 2.5 Gb or 2.5/5 Gb) interfaces there with newer notebook systems - so MultiGig capability on the switch, ideally some 10GBase-T and SFP+ port mix, can be key.
schumaku wrote:
Blanker-2 wrote:
What do u recommend for a NIC for the pc? Some of the dual nic cards are almost the same cost as the 10GbE nics.The Aquantia AQC-107 equipped 10 GbE 10GBase-T cards are a good choice. Avoid the Tehuti TN-4010 variants due to driver issues and sometimes average performance.
I picked up one of the ASUS XG-C100C cards when they first came out. They use the Aquantia AQC-107 controller.
schumaku wrote:10 Gb Ethernet does require to much power for mobile devices like notebooks. We can expect MultiGig (like 2.5 Gb or 2.5/5 Gb) interfaces there with newer notebook systems - so MultiGig capability on the switch, ideally some 10GBase-T and SFP+ port mix, can be key.
I get the power issue - though I'd be fine with having 10GBase-T (or MultiGig) NIC in a laptop docking station.
The most recent laptop I bought (for my wife) had no ethernet at all. There are a couple of Thunderbolt 10GBaseT adapters out there - they might be ok for a home office.
The switches are still very expensive - around 10x more than gigabit. That will certainly limit the number of 10GBase-T ports I deploy.
Thanks guys. I did see in my synology dhcp settings for all the lan ports. Gonna take a breather on this since it’s getting a bit too complicated for me.
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