DS923+ migrates to 1GbE LAN, not 10GbE LAN

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DS923+ migrates to 1GbE LAN, not 10GbE LAN

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6
NAS
DS923+
Operating system
  1. macOS
Mobile operating system
  1. iOS
My NAS is connected to a switch via both a 10GbE (LAN3) and a 1GbE (LAN2) ports. The switches second 10GbE line goes straight to my Mac Studio. A second 1GbE line is connected to a router.
I set up LAN3 10GbE as the default gateway and at the top of the service order. The NAS connection operaates through LAN3 at 550Mbs but later will start using the LAN2 1GbE port instead. I can restart the NAS and it connects via LAN3 (!)GbE) but eventually will move over to LAN2. (LAN3 MTU is set to 9000).

Any ideas why its doing this? Is there a way to make LAN3 "stick". Is there an easier way to enforce LAN3 rather than restarting the NAS?
What If I disconnected the LAN2 (1GbE) line entirely and just connected the DS923+ via LAN3 (10GbE) to the switch and then ran 10GbE to the computer and 1GbE to the router?
 
Have you tested without using Jumbo Frames? Maybe this is affecting the connectivity to other network devices.

Is the LAN3 IP address manually configured, and isn’t available to be assigned to another device via DHCP?

What If I disconnected the LAN2 (1GbE) line entirely and just connected the DS923+ via LAN3 (10GbE) to the switch and then ran 10GbE to the computer and 1GbE to the router?
What if? Try it.
 
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What If I disconnected the LAN2 (1GbE) line entirely and just connected the DS923+ via LAN3 (10GbE) to the switch and then ran 10GbE to the computer and 1GbE to the router?
In case you have no need to use WOL on your NAS (that defaults to LAN1), then just disconnect the cable and use a single 10G connection considering both are connected to a switch. On top of this if both connections are in the same network subnet, then there is really no reason to have both.

If on the other hand, you want to exclusively use 10G with Mac while having 1G for the rest of the NAS operations, then put 10G in a different network subnet, and configure the mac 10G adapter in the same subnet. This way you will separate them and make them exclusive. Mount the 10G connecting to your mac using the specific 10G network address of your NAS.
 
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Jumbo frames have always given me incompatibility issues and it just congests your network with resent frames
 
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Last edited:
Have you tested without using Jumbo Frames? Maybe this is affecting the connectivity to other network devices.

Is the LAN3 IP address manually configured, and isn’t available to be assigned to another device via DHCP?


What if? Try it.
I turned off Jumbo Frames. Both LANs have static IP addresses. I disconnected the LAN2 port leaving only LAN3 (10GbE).
Everything seems to be working fine. Read/write is constantly in the 500/650 Mbps range. Thanks.
-- post merged: --

In case you have no need to use WOL on your NAS (that defaults to LAN1), then just disconnect the cable and use a single 10G connection considering both are connected to a switch. On top of this if both connections are in the same network subnet, then there is really no reason to have both.

If on the other hand, you want to exclusively use 10G with Mac while having 1G for the rest of the NAS operations, then put 10G in a different network subnet, and configure the mac 10G adapter in the same subnet. This way you will separate them and make them exclusive. Mount the 10G connecting to your mac using the specific 10G network address of your NAS.
I disconnected the 1GbE LAN and am only running 10GbE to the switch. Seems to be working and stable (over the weekend anyway).
Using separate 10/1G networks is an interesting idea (and WoL). Now that the NAS is working properly, I think I will leave it that way. What's that saying about fixing things?
I might look into your idea in the future-is there a link to how that should be set up? Thanks
 
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My 10GBE setup is a DS1819+ with the add-on 10GBE NIC, an unmanaged Netgear GS110MX, and PC with an add-on 10 GBE NIC. Jumbo frames enabled on both the 1819+ and on the 10 GBE PC NIC. Jumbo frames should not be enabled on the 1GBE NICs.

I do have 1 GB NICS on the 1819+ also connected, so I access the 1819+ by the static IP assigned to the 10GBE NIC for fastest transfer speeds.

I do not know if there is or is not an issue with your setup with Jumbo Frames and connecting the MAC directly to the 923+
 
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My 10GBE setup is a DS1819+ with the add-on 10GBE NIC, an unmanaged Netgear GS110MX, and PC with an add-on 10 GBE NIC. Jumbo frames enabled on both the 1819+ and on the 10 GBE PC NIC. Jumbo frames should not be enabled on the 1GBE NICs.

I do have 1 GB NICS on the 1819+ also connected, so I access the 1819+ by the static IP assigned to the 10GBE NIC for fastest transfer speeds.

I do not know if there is or is not an issue with your setup with Jumbo Frames and connecting the MAC directly to the 923+
I basically have the same setup (QNAP unmanaged switch). Only difference is MTU is set to 1500 on all devices and no 1GbE direct connect to the switch. The 10GbE LAN goes through the switch and then on to a router and a Mac Studio.

Everything is working except...

The NAS no longer hibernates after 20 minutes. There is a continuous 1-3 KB IOPS on the 10GbE LAN that keeps the NAS running 24/7 unless I shut it down.

I only noticed this a couple of days ago and am not sure what setting I changed that made the DS923+ continuously communicate with my Mac or router.
 
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