[RT-AC87U] Increase USB3.0 disk speed?

[Beherit]

- 3 GB video file transfered from router USB3.0 attached disk (NTFS)

That right there could be the problem, NTFS. Its Linux implementation is very CPU intensive. When I transfer huge files to NTFS drives on my desktop computer, it fully uses a CPU core on its own and stalls all other I/O calls. A router with less cores, bandwidth and computational power than a desktop computer probably has to struggle even more..

My USB drive has a speed of appx 90 MB/s read and 70 MB/s write, and I get almost full speed when transferring to/from it using gigabit ethernet, The drive is formatted with ext4 (without journaling) and I use NFS and not SMB with it in my RT-AC87U router.

 

[Gatsu]

usb_path2_speed=480
usb_path1_speed=5000

It's OK. Thanks for tip anyway. Btw what do you mean that you lost speed. USB3 disk was not properly detected?

It was detected, but only at USB2.0 speed (WD RED 3TB in Lc-Power LC-35U3 case). I moved it to cheap nas (Zyxel NSA310S).
Btw usb3 speeds were about 65 in samba as I remember (AC68U with oc to 1200,800 hdd formated as ext4)

 

[Marko Polo]

Is your HDD/enclosure properly detected as USB 3.0 ??

nvram show | grep _speed

480 means USB2, 5000 means USB3
I lost my USB3 speed on every firmware after 378.56_2 on AC68U

Okay, I have output usb_path1_speed=480 from this command. Does it mean that my USB3.0 drive was detected as 2.0?
lsusb command returns 3 devices

Polo@RT-AC68U:/tmp/mnt# lsusb
Bus 001 Device 001: ID 1d6b:0002
Bus 002 Device 001: ID 1d6b:0001
Bus 001 Device 007: ID 152d:0578

Can it be speed of my connected printer or nvram reports only storage speed?

 

[Marko Polo]

Solved.
Thanks, guys, it was interference. I should have been searched forums better

 

[Marko Polo]

Now the disk is detected properly, but I am still dissatisfied.

My USB drive has a speed of appx 90 MB/s read and 70 MB/s write, and I get almost full speed when transferring to/from it using gigabit ethernet, The drive is formatted with ext4 (without journaling) and I use NFS and not SMB with it in my RT-AC87U router.

How you, guys, were able to achieve such speeds? Does all the above numbers are got over WiFi or Ethernet?
I get 15-20 MB/s over Wifi and max 40-45 MB/s over Ethernet. No matter if it's EXT4 or NTFS (NTFS even slightly faster), no matter of which OS I am using and no matter which protocol (FTP and Samba are almost the same). Reducing USB interference is disabled.
Why?

 

[ColinTaylor]

Why?

Because you have a RT-AC68U and he has a RT-AC87U which has a faster processor and twice as much RAM (both of which greatly impact Samba's performance).

 

[Marko Polo]

Because you have a RT-AC68U and he has a RT-AC87U which has a faster processor and twice as much RAM (both of which greatly impact Samba's performance).

Well, I don't pretend to such numbers as 70 or 90 Mb/s, but I even cannot reach regular 50/30 R/W like, for example RT-AC3200 owners

Although I have an RT-AC3200 in this respect USB3 throughput should be very similar. I am currently getting around 57MB/s read and roughly 50MB/sec write speed with file copy commands to a router smb share, using a Merlin derivative (380.65 based). Some comments though

 

[ColinTaylor]

Well, I don't pretend to such numbers as 70 or 90 Mb/s, but I even cannot reach regular 50/30 R/W like, for example RT-AC3200 owners

and max 40-45 MB/s over Ethernet.

Seems about right.

https://www.smallnetbuilder.com/wir...1900-gigabit-router-reviewed?showall=&start=1

EDIT: Updated link

 

[TheUntouchable]

I can't get the smb transfer running on my AC88U.. Trying to copy a 2GB ISO file on a USB 3.0 32GB Stick with ext2. First the speed jumps from 30MB/s to 0 and back and after some minutes I got these two messages:

@router

Jul  2 20:42:49 disk_monitor: Got SIGALRM...

@Windows10

Error 0x8007003B: Unexpected network error

100% CPU and RAM @ router.

GUI also not responding anymore.

EDIT: Same with SMB2 and FTP