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Forum Discussion
Device Names for USB Storage
Hi, I've noticed under OS6 on my 526X that each time I connect a USB disk the device name increments. First time it's /dev/sdf then /dev/sdg and then /dev/sdh and so on... Is this normal / expect...
Something else I have found is upon removing the USB external drive I see the following logged:
Dec 10 13:44:45 DESPAIR kernel: usb 3-1: USB disconnect, device number 2
Dec 10 13:44:45 DESPAIR kernel: sd 9:0:0:0: [sde] Synchronizing SCSI cache
Dec 10 13:44:45 DESPAIR kernel: sd 9:0:0:0: [sde] Synchronize Cache(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
I am concerned at this as the drive was already unmounted at that stage, yet it seems to indicate some synchronization failed...
Full compliment of logs from disk insertion to removal shown below:
Dec 07 14:43:02 DESPAIR kernel: usb 3-1: new SuperSpeed USB device number 2 using xhci_hcd
Dec 07 14:43:02 DESPAIR kernel: usb-storage 3-1:1.0: USB Mass Storage device detected
Dec 07 14:43:02 DESPAIR kernel: scsi host9: usb-storage 3-1:1.0
Dec 07 14:43:03 DESPAIR kernel: scsi 9:0:0:0: Direct-Access Seagate Expansion 9300 PQ: 0 ANSI: 6
Dec 07 14:43:03 DESPAIR kernel: sd 9:0:0:0: Attached scsi generic sg4 type 0
Dec 07 14:43:03 DESPAIR kernel: sd 9:0:0:0: [sde] Spinning up disk...
Dec 07 14:43:05 DESPAIR kernel: ..ready
Dec 07 14:43:05 DESPAIR kernel: sd 9:0:0:0: [sde] 1953525167 512-byte logical blocks: (1.00 TB/932 GiB)
Dec 07 14:43:05 DESPAIR kernel: sd 9:0:0:0: [sde] Write Protect is off
Dec 07 14:43:05 DESPAIR kernel: sd 9:0:0:0: [sde] Mode Sense: 4f 00 00 00
Dec 07 14:43:05 DESPAIR kernel: sd 9:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Dec 07 14:43:05 DESPAIR kernel: sde: sde1
Dec 07 14:43:05 DESPAIR kernel: sd 9:0:0:0: [sde] Attached SCSI disk
Dec 07 14:43:06 DESPAIR kernel: EXT4-fs (sde1): mounted filesystem with ordered data mode. Opts: barrier=1,acl
Dec 10 13:44:45 DESPAIR kernel: usb 3-1: USB disconnect, device number 2
Dec 10 13:44:45 DESPAIR kernel: sd 9:0:0:0: [sde] Synchronizing SCSI cache
Dec 10 13:44:45 DESPAIR kernel: sd 9:0:0:0: [sde] Synchronize Cache(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
Is this just something I can ignore?
OS 6.6.0
Hello steveoelliott,
I checked your profile and it appears this RN526X you have is entitled to free tech support via phone until 26th of January. It is best if you contact support to get assistance from higher tier as this error message will be determined by them.
Regards,
To be honest, I was keen to see what other users see in this scenario. I can raise a case if needs be but ultimately I am not seeing any adverse behaviour.
It's something very easy to try or folks may see themselves in logs. Particularly the point regarding device sde, sdf, sdg etc
I found this associated log entry also...
umount2(/run/nfs4/media/USB_HDD_1) failed2, errno=22
Any idea what this means? This would be at the time of the disconnect from the interface.
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