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labp

Member

Registered: 2011-02-19

Posts: 11

Broken external HD

Hi all,

I dropped my external HD and it is not being detected anymore, here is the dmesg log:

[ 6925.572259] usb 1-7: new high-speed USB device number 6 using xhci_hcd
[ 6935.953809] usb 1-7: new high-speed USB device number 7 using xhci_hcd
[ 6936.648037] usb-storage 1-7:1.0: USB Mass Storage device detected
[ 6936.648111] scsi3 : usb-storage 1-7:1.0
[ 6936.648183] usbcore: registered new interface driver usb-storage
[ 6936.649250] usbcore: registered new interface driver uas
[ 6937.649932] scsi 3:0:0:0: Direct-Access     WD       Elements 10A8    1042 PQ: 0 ANSI: 6
[ 6937.651509] sd 3:0:0:0: [sdc] Spinning up disk...
[ 6938.652394] ...ready
[ 7120.549099] sd 3:0:0:0: timing out command, waited 180s
[ 7300.420772] sd 3:0:0:0: timing out command, waited 180s
[ 7480.317198] sd 3:0:0:0: timing out command, waited 180s
[ 7480.317236] sd 3:0:0:0: [sdc] READ CAPACITY failed
[ 7480.317240] sd 3:0:0:0: [sdc] 
[ 7480.317242] Result: hostbyte=0x00 driverbyte=0x08
[ 7480.317244] sd 3:0:0:0: [sdc] 
[ 7480.317245] Sense Key : 0x4 [current]
[ 7480.317248] sd 3:0:0:0: [sdc] 
[ 7480.317249] ASC=0x30 <<vendor>> ASCQ=0x8d
[ 7660.221612] sd 3:0:0:0: timing out command, waited 180s
[ 7660.221633] sd 3:0:0:0: [sdc] Test WP failed, assume Write Enabled
[ 7840.123128] sd 3:0:0:0: timing out command, waited 180s
[ 7840.123149] sd 3:0:0:0: [sdc] Asking for cache data failed
[ 7840.123152] sd 3:0:0:0: [sdc] Assuming drive cache: write through

It times out trying to spin the disk, but I can hear the disk spinning.

And those are the messages after I unplug it:

[ 7906.035397] usb 1-7: USB disconnect, device number 7
[ 7906.036304] sd 3:0:0:0: [sdc] READ CAPACITY failed
[ 7906.036309] sd 3:0:0:0: [sdc] 
[ 7906.036311] Result: hostbyte=0x01 driverbyte=0x00
[ 7906.036313] sd 3:0:0:0: [sdc] Sense not available.
[ 7906.036358] sd 3:0:0:0: [sdc] Attached SCSI disk

I can think in a couple possibilities:

1 - the motor is broken or stuck
2-  PCB is broken

Is there a way to be certain of that? If it is only the PCB I could buy another one, if it is the motor I could try to unstuck it, but since there is a high probability of damaging the plates I want to be certain of that first.

lagagnon

Member

From: an Island in the Pacific...

Registered: 2009-12-10

Posts: 1,087

Website

Re: Broken external HD

The "Ultimate Boot CD" has a number of hard drive utilities for the various HD manufacturer's that might help you diagnoze the fault. If it is possible to take apart the casing you might also find just a dislodged connector (if you're lucky).

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Philosophy is looking for a black cat in a dark room. Metaphysics is looking for a black cat in a dark room that isn't there. Religion is looking for a black cat in a dark room that isn't there and shouting "I found it!". Science is looking for a black cat in a dark room with a flashlight.