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How did Disk Utility make my external drive undetectable?

351 Views 1 Reply Latest reply: Nov 14, 2012 3:34 AM by Radiation Mac RSS
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Nov 14, 2012 2:46 AM

Greetings all,

 

It all started when I dropped a running external hard drive (WD My Book Essential) onto the floor.

I immediately plugged the disconnected USB back into the drive and waited..

The first pop-up said the drive could not be read so I re-plugged it.

It worked and I could read files but it took a long time just to show those files in finder.

 

There was obviously a problem with the drive so I opened up Disk Utility and clicked Verify Disk.

When it was finished verifying I noticed it changed my disk name from "My Book" to "disk1s1." 

I also got a message saying "This disk needs to be repaired. Click Repair Disk."

I proceed to click Repair Disk only to end with a message saying "Disk Utility stopped repairing “disk1s1”: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files."

 

At this point I followed the instructions on screen and proceeded to copy files from the external drive to my internal drive.

After pasting some files, the usual popup indicating transfer information was stuck at zero. 

After a long time of waiting it still remained at zero so I had to force close finder and restart.

Once I restarted the Macbook Pro, my external hard drive no longer showed up on my desktop nor Disk Utility.

It still spins but stops after a minute.

 

Below is the log from Disk Utility.

Any help regarding this issue will be appreciated.

2012-11-14 16:47:00 +0800: Disk Utility started.

 

2012-11-14 16:49:29 +0800: Verifying volume “My Book”

2012-11-14 16:49:29 +0800: Starting verification tool:

2012-11-14 16:53:40 +0800: Checking file system2012-11-14 16:53:40 +0800: Checking Volume /dev/disk1s1...                                               

2012-11-14 16:53:58 +0800: This is not an NTFS volume.                                                   

2012-11-14 16:54:39 +0800: Error: This disk needs to be repaired. Click Repair Disk.2012-11-14 16:54:39 +0800:

2012-11-14 16:54:39 +0800: Disk Utility stopped verifying “disk1s1”: This disk needs to be repaired. Click Repair Disk.

2012-11-14 16:55:09 +0800:

 

2012-11-14 16:55:22 +0800: Verify and Repair volume “disk1s1”

2012-11-14 16:55:22 +0800: Starting repair tool:

2012-11-14 16:55:22 +0800: Checking file system2012-11-14 16:55:22 +0800: Checking volume.

2012-11-14 16:55:22 +0800: Checking main boot region.

2012-11-14 16:55:35 +0800: Volume repair complete.2012-11-14 16:55:35 +0800: Updating boot support partitions for the volume as required.2012-11-14 16:56:14 +0800: Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.2012-11-14 16:56:14 +0800:

2012-11-14 16:56:14 +0800: Disk Utility stopped repairing “disk1s1”: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

2012-11-14 16:56:44 +0800:

 

**********

2012-11-14 16:58:08 +0800: Disk Utility started.

 

2012-11-14 16:58:14 +0800: Eject of “WD My Book 1140 Media” succeeded

2012-11-14 17:04:21 +0800: Eject of “WD My Book 1140 Media” failed

MacBook Pro, Mac OS X (10.7.5)

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