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Forum Discussion
Ejik2
May 07, 2025Aspirant
2.5GBe USB LAN
I have an old Ultra2 2Gb RAM running 6.10.9 OS. NAS is working great but 1Gb LAN is a bottleneck. I've bought cheap 2.5GBe USB LAN adapter based on realtek chip, attached to USB3 port and installed ...
StephenB
May 07, 2025Guru - Experienced User
Have you checked the advertised link speed of the interface with ethtool?
You could try installing iperf on the NAS and a PC - that would let you measure the network throughput independently of the RAID.
You can also test the RAID throughput using dd ( of=/dev/null for read tests; if=/dev/zero for write tests). That will give you some idea on how much you might actually gain if you get the 2.5G running at full speed. Though this wouldn't account for SAMBA, which will slow things down.
Ejik2
May 07, 2025Aspirant
Yep, ethtool shows 2500 link speed. Not tested with DD, but with native 2x 1Gb interfaces bonded, round-robin I've got ~140MB/s
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