Forum Discussion

Tutor

Dec 23, 2020

USB HUB 3.0 with two external HDD

Model readynas 314 i have been using one usb to connect to UPS and utilizing second USB 3.0 port to connect to two external HDD's with a USB 3.0 HUB. it connects and both ext HDD are visible but, the...

aniraghome

Tutor

Dec 23, 2020

Usb hub doesn’t have a power cord it just powers through usb port on nas. Similarly ext hdd are powered though hub.

I dont remove the ext hdd’s at all they always stay connected with nas via the hub. This is because i have daily backup jobs between nas to ext hdd’s.

When i had one ext hdd i use to directly plug it to one of the nas 3.0 ports directly all the time. Never had issues in 6 years. I started getting this issue only after the hub split that too the first ext hdd connected doesn’t have issues its the second one that gives the error.

mdgm

Virtuoso

Dec 23, 2020

It could be an intermittent problem with supplying enough power for two drives. You could try switching to an AC powered USB3 dock and see if that helps.

If you download the logs what is the date in bios_ver.log?

mdgm
Virtuoso
Dec 23, 2020
I meant AC powered USB3 hub.

The reason I ask about the date of the BIOS is that there was a USB3 F/W update in newer BIOS from late 2013.
- aniraghome
  Tutor
  Dec 31, 2020
  sorry for the delay. i downloaded the logs and the date i see in the file bios_ver log is 11/05/2013
  - mdgm
    Virtuoso
    Jan 01, 2021
    From memory that is the latest. I thought the problem was most likely not supplying sufficient power to the drives or a hardware issue with the drive or hub anyway. See if you still have the problem with an AC powered hub.
aniraghome
Tutor
Dec 23, 2020
Where can i find “date in bios_ver.log“
- StephenB
  Guru - Experienced User
  Dec 23, 2020
  aniraghome wrote:
  Where can i find “date in bios_ver.log“
  
  Download the full log zip file from the logs page in the web ui. bios_ver.log is in there.