RT-BE88U - USB Storage speed

[ThatTaytoGuy]

Hi All,

Hoping someone can help with this.
I recently bought an ASUS RT-BE88U currently running FW: 3.0.0.6.102_38152-g83e0a43_1214-g12729_BB0B

I have been using a SATA SSD via the USB port on the router and dropping backups of my PCs into it.

While the write speed isn't great - I am getting approx 900mbps to 1100mbps - I put this down to the drive being SATA and the USB to SATA connection being USB 3.0 - Crystal disk mark scores below when connected to the router USB:



With that, I have started testing with an NVME drive rated at 5+GB per second write in a 10gbps rated enclosure/USB cable the write speed isn't much better but I am not anywhere near saturating the rated USB speed of port/or enclosure

Crystal disk mark scores below when connected to the router USB:



When connected to my PC's 5gbps USB port i get much better speed:



Would anyone have any idea how to get the most out of the USB port?
Just to note my pc has a 10gb ethernet connection back to the router.

Could the issue be with the smb version? Any advice is appreciated.

Thanks in advance.

 

[degrub]

You do realize you are expecting a lowly router CPU to perform like your PC's CPU while handling routing duties ?
USB was for convenience and marketing of the router. IF you need a NAS for convenient dumping of backup images, please don't torture your router. Otherwise, direct connected via USB at the PC will be faster.

 

[Tech9]

I am not anywhere near saturating the rated USB speed

You'll never get there on this device. Don't waste your time.

 

[ThatTaytoGuy]

You do realize you are expecting a lowly router CPU to perform like your PC's CPU while handling routing duties ?
USB was for convenience and marketing of the router. IF you need a NAS for convenient dumping of backup images, please don't torture your router. Otherwise, direct connected via USB at the PC will be faster.

I know I'm asking a lot from it and honestly not expecting it to perform like my PC. Just a little disappointed in the USB performance being between 20% - 25% of the rated port speed and was hoping to eek just a bit more out of it. I should add that the CPU on the router isn't maxed out and has spiked to 100% on a single core during the process.

I'm not overly disappointed in it considering it still runs faster than every backup I manage at work but would be delighted if I could push it to 30+ percent of its rated speed. I am in the process of getting a NAS built and will have 10gbe this is just a stop-gap for now and potentially a detachable disk should any of my PCs or the eventual NAS pop and need a rebuild.

 

[degrub]

Link speed is always greater than bandwidth. Improve one portion and you will find the next bottleneck.
Link speed is what is advertised and heavily marketed even if the hardware/software cannot support.