[ 5.124489] usb 1-2: New USB device found, idVendor=125f, idProduct=a35a, bcdDevice= 1.00
[ 5.138662] usb 1-2: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[ 5.151816] usb 1-2: Product: HD650
[ 5.163401] usb 1-2: Manufacturer: ADATA
[ 5.174874] usb 1-2: SerialNumber: 469093854006
[ 5.271985] usb-storage 1-2:1.0: USB Mass Storage device detected
[ 5.284494] scsi host0: usb-storage 1-2:1.0
[ 5.305338] usbcore: registered new interface driver uas
[ 6.304167] scsi 0:0:0:0: Direct-Access ADATA HD650 0 PQ: 0 ANSI: 6
[ 6.319922] sd 0:0:0:0: [sda] Spinning up disk...
[ 7.010572] EXT4-fs (mmcblk0p2): mounted filesystem with writeback data mode. Quota mode: none.
[ 7.359204] .
[ 7.937317] systemd[1]: System time before build time, advancing clock.
[ 8.383175] .................................................................................................not responding...
[ 128.008368] sd 0:0:0:0: [sda] Read Capacity(10) failed: Result: hostbyte=0x00 driverbyte=DRIVER_OK
[ 128.023616] sd 0:0:0:0: [sda] Sense Key : 0x2 [current]
[ 128.035289] sd 0:0:0:0: [sda] ASC=0x4 ASCQ=0x1
[ 128.046964] sd 0:0:0:0: [sda] 0 512-byte logical blocks: (0 B/0 B)
[ 128.059173] sd 0:0:0:0: [sda] 0-byte physical blocks
[ 135.008044] sd 0:0:0:0: [sda] Test WP failed, assume Write Enabled
[ 141.957722] sd 0:0:0:0: [sda] Asking for cache data failed
[ 141.969473] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 141.982023] sd 0:0:0:0: [sda] Attached SCSI disk
So it seems like it is being detected. Everything beyond is out of scope of Armbian and userspace related.