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Posted
Armbianmonitor:

I recently plugged in a 4TB Seagate Expansion hard drive and it worked fine.

 

After rebooting the Rockpi4B via 'sudo reboot'  the drive  is not recognised -  dmesg shows:

[    3.877060] sd 1:0:0:0: [sdb] Unit Not Ready
[    3.877082] sd 1:0:0:0: [sdb] Sense Key : 0x4 [current] 
[    3.877094] sd 1:0:0:0: [sdb] ASC=0x44 <<vendor>>ASCQ=0x81 
 

Any ideas?

Posted

Sure enough,  unplug/replug works...

[75734.552263] usb 6-1: USB disconnect, device number 2
[75737.559808] usb 6-1: new SuperSpeed USB device number 3 using xhci-hcd
[75737.581298] usb 6-1: New USB device found, idVendor=0bc2, idProduct=2037, bcdDevice=19.01
[75737.581339] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[75737.581362] usb 6-1: Product: Expansion HDD
[75737.581381] usb 6-1: Manufacturer: Seagate
[75737.581400] usb 6-1: SerialNumber: 00000000NAC5MKA3
[75737.583286] usb 6-1: UAS is ignored for this device, using usb-storage instead
[75737.583317] usb-storage 6-1:1.0: USB Mass Storage device detected
[75737.584389] usb-storage 6-1:1.0: Quirks match for vid 0bc2 pid 2037: 800000
[75737.584713] scsi host1: usb-storage 6-1:1.0
[75738.600671] scsi 1:0:0:0: Direct-Access     Seagate  Expansion HDD    1901 PQ: 0 ANSI: 6
[75738.601867] sd 1:0:0:0: Attached scsi generic sg0 type 0
[75743.224634] sd 1:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16).
[75743.224837] sd 1:0:0:0: [sda] 7814037167 512-byte logical blocks: (4.00 TB/3.64 TiB)
[75743.224845] sd 1:0:0:0: [sda] 4096-byte physical blocks
[75743.225155] sd 1:0:0:0: [sda] Write Protect is off
[75743.225164] sd 1:0:0:0: [sda] Mode Sense: 47 00 00 08
[75743.225490] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[75743.909269]  sda: sda1
[75743.910741] sd 1:0:0:0: [sda] Attached SCSI disk

 

Posted

Not sure but I might have had similar issues on restart but do not know anymore with which board. Anyway hard to tell what's the cause for this...

Posted
16 hours ago, tellytinker said:

power 2 spinning drives drawing to much power starting at sane time...

I considered that -  however  the RockPi  page states:

How much mA can i get from the USB 3 and 2 ports for charging or use a 2.5" disk?

The upper USB3.0 OTG has one dedicated current limit control which is 1.45A. The rest USB 3.0 HOST and the two USB 2.0 HOST share a current limit control of 3A together

 

Posted

I asked Radxa  - they advice a 30W USB PD power supply is needed to power two hard drives - I currently only have an 18W one. I've ordered a 30W power  supply and will replace it ASAP and report the results.

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