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Unable to Repair external HD
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
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Hi there
I have a 2TB external Western Digital MyBook drive and just yesterday it "disappeared" from my desktop... I am using it at my backup and has some other important information on it.
I go to Disk Utilities and try and repair it.... however i only get this error
Whoops! - TinyGrab
What can i do to fix it/ recover the data?
Should i try use a program such as Drive Genius and "Duplicate" the data to another drive?
Any help would be of great help !!!
Thanks allot !!!
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Last edited by mkerr64; Oct 8, 2010 at 03:37 PM.
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R.I.P Steve Jobs
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Your drive is hosed. You could try having Disk Warrior attempt a repair, which may get it to a point where you can get data off, or get it to a point where you could try Data Rescue and recover data.
(Both of those are commercial programs available for $100.)
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Fresh-Faced Recruit
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This sounds like a problem DiskWarrior can handle - maybe. That said, I would certainly try to retrieve any critical files from the disk before attempting any fixes. One of the Mac data recovery programs, e.g. Data Recovery from ProSoft, might work. Recent WD drives (probably the enclosures and WD installed software) have been problematic for me. HTH.
Frank
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RMA. Start the process now, even as you try to get some data off it. WD has a service where they send you the replacement drive first - invaluable for copying any data you might be able to recover.
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The new Mac Pro has up to 30 MB of cache inside the processor itself. That's more than the HD in my first Mac. Somehow I'm still running out of space.
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Professional Poster
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If for some reason you can't do an RMA (perhaps you don't want to send the HD back because it has sensitive data on it) I suspect that the enclosure may have died on you (not the HD).
We've got a couple of dual-interface My Books where one of the interfaces is dead, but the other interface works (the HD is OK.)
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
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Thank you so much. I will give Disk Worrier a try tomorrow or when i have a chance.. but if anyone else has any other recommendations please pass them on
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R.I.P Steve Jobs
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Originally Posted by mkerr64
Disk Worrier
This is a way better name than the official one.
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The new Mac Pro has up to 30 MB of cache inside the processor itself. That's more than the HD in my first Mac. Somehow I'm still running out of space.
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Senior User
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I got this as an error...
Whoops! - TinyGrab
i know i have about 30gb of free space on that drive only.... could that be the reason of the error?
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R.I.P Steve Jobs
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That error refers to computer RAM. Your sig doesn't say how much RAM you have installed. DiskWarrior ran out of memory space to hold the drive's directory tree during the repair.
You can reboot from the DiskWarrior CD as suggested. If you don't have it on CD, then quit everything else you can. The Finder too, using TinkerTool or Onyx or other utility to add the Quit command. Lot out from all other user accounts. Then try rebuilding again.
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Senior User
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R.I.P Steve Jobs
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I've encountered this DiskWarrior error as well. I had plenty of RAM, but the hard disk was getting close to being full. There was what appeared to be plenty of free space to write an optimized directory, however DiskWarrior just wouldn't finish the job. I finally figured out that the drive was so full and badly fragmented that there wasn't enough contiguous free space for the rebuilt directory. I deleted a rather large file (a disc image that I could easily replace) and ran DiskWarrior again. Then it worked fine.
If you have a 1.82TB disk and have only 30GB free, your fragmentation of available free space might be the issue.
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Senior User
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Originally Posted by Dr. Wahnsinn
I've encountered this DiskWarrior error as well. I had plenty of RAM, but the hard disk was getting close to being full. There was what appeared to be plenty of free space to write an optimized directory, however DiskWarrior just wouldn't finish the job. I finally figured out that the drive was so full and badly fragmented that there wasn't enough contiguous free space for the rebuilt directory. I deleted a rather large file (a disc image that I could easily replace) and ran DiskWarrior again. Then it worked fine.
If you have a 1.82TB disk and have only 30GB free, your fragmentation of available free space might be the issue.
I've got a file which should be about 1.5 tb which i can delete however i cannot excess the drive. How can i delete it, its the TimeMachine Backup files?
only the "other" 200gb or so are important
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R.I.P Steve Jobs
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That is not so good. Where do you get the memory error, when DW tries to write the new directory? If so, right before that step it offers you the chance to "preview" the repaired drive. Clicking on the Preview button will mount a virtual copy of the repaired drive on your Desktop. And you could copy the 200 GB from the preview drive to somewhere safe. Then reformat the 2 TB drive and forget about the repair.
If you're getting the error before it offers a preview option ... you might have to use Data Rescue to get the important data. With the drive not mounting, there is no obvious way to delete files or copy to another drive. And you certainly can't defragment a damaged drive even if it mounted.
hmm ... if you had a larger drive available, such as one of those 3 TB Seagate externals, or a RAID drive. You might be able to do a block copy from the damaged 2 TB drive to the bigger volume, then enlarge the partition to match the bigger volume size. Disk Warrior would then have free space to work in. This might work if Disk Utility will do a block copy from an unmounted drive.
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Senior User
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Originally Posted by reader50
That is not so good. Where do you get the memory error, when DW tries to write the new directory? If so, right before that step it offers you the chance to "preview" the repaired drive. Clicking on the Preview button will mount a virtual copy of the repaired drive on your Desktop. And you could copy the 200 GB from the preview drive to somewhere safe. Then reformat the 2 TB drive and forget about the repair.
If you're getting the error before it offers a preview option ... you might have to use Data Rescue to get the important data. With the drive not mounting, there is no obvious way to delete files or copy to another drive. And you certainly can't defragment a damaged drive even if it mounted.
hmm ... if you had a larger drive available, such as one of those 3 TB Seagate externals, or a RAID drive. You might be able to do a block copy from the damaged 2 TB drive to the bigger volume, then enlarge the partition to match the bigger volume size. Disk Warrior would then have free space to work in. This might work if Disk Utility will do a block copy from an unmounted drive.
The error comes up when i go to --> directory --> select drive --> Rebuild it ( Whoops! - TinyGrab)
it runs for about 10 min and gets the error. I have not witnessed the "preview" feature
should i try and go under "files" or "Hardware" the drive is not present..
I have another 8TB drive which i can transfer to if necessary. How would you do a block copy using Disc Utilities?
Thank you so much for the help
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R.I.P Steve Jobs
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The Preview option comes up at the end of the rebuild. It gives the Alsoft DiskWarrior Report window, with details on the results. You have buttons to [Cancel] or [Replace], and there are square icons for [Details] and [Preview].
If Disk Utility can do a block copy from an unmounted drive, it would be in the Restore tab. Use the unmounted drive as the source, and the RAID volume as the target. If it works, the target will get wiped and replaced by the 2 TB drive, so make sure that RAID volume contains nothing of value.
I don't know if Disk Utility will allow a block copy from an unmounted drive though. If it does, the RAID volume will not mount either after the copy is done. If it worked, you'd use Disk Utility's partition tab to grow the partition size. Then finally use Disk Warrior on it.
I've never tried this trick, so there's no guarantee it will work.
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I'm pretty sure Disk Utility won't copy a drive that won't mount.
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How would I be able to select an image if it cannot be mounted .. and the destination is simple the 8tb drive, if so how would I be able to select it? Whoops! - TinyGrab
Since i cannot "preview" anything i've decided to go with Data Rescue II... Currently I am doing an "Thorough Analyze" to see if it can spot anything.. 7.4 hours to go.. yay
or should i be doing a clone??
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R.I.P Steve Jobs
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Originally Posted by mkerr64
How would I be able to select an image if it cannot be mounted .. and the destination is simple the 8tb drive, if so how would I be able to select it? Whoops! - TinyGrab
Drag it over from the left hand column?
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If it won't drag, try typing in the name (assuming Disk Utility sees the name). Or type the bsd drive name. I didn't have the guts to try it on my system, since I don't have a spare drive to overwrite.
Long scan runs with Data Rescue are normal, especially for huge drives. Let it keep going.
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Senior User
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I will let data rescue continue.6 hrs left 1/2
if all else fails i will do a block copy via disc utilities
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R.I.P Steve Jobs
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Just for future reference, there is a bug in 10.6 (maybe earlier) that refuses to let you drag/drop into the source and destination fields in Disk Utility when attempting to restore.
If this happens, you should still be able to ctrl-click on the volumes in the left column and choose "set as destination" and "set as source".
If Data Rescue has been going this long, I'm pretty sure it's going to recover what you need. I certainly would NOT trust this drive any more.
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Senior User
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it started to slow down... im at 2/2 4.5 hours to go and its been creeping down very slowly... .1 hr per like 30 min
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R.I.P Steve Jobs
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Let it run. Under the circumstances, Data Rescue is your best bet anyway. I tried to come up with the other method in case you didn't want to buy DR.
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From doing this long analysis.. this is what i got... i dont think it was of any use
Whoops! - TinyGrab
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R.I.P Steve Jobs
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If you use the img tags not an http link, you can insert pictures inline with your post like so:
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Senior User
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ok thanks, ill keep that in mind for next time
But what does this "Media Access Time" mean to me?
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R.I.P Steve Jobs
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Data Rescue should present a folder tree, with files. Check other windows - I haven't used DR in awhile, but that window is not the one you want. Do NOT quite Data Rescue - you'd have to scan all over again.
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Senior User
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Dont worry she is still running hahha
i cant seem to find that folder tree...
here are my options for the time being
What else should i try and do with Data Rescue before attempting block copy?
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Last edited by mkerr64; Oct 13, 2010 at 02:16 PM.
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R.I.P Steve Jobs
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R.I.P Steve Jobs
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With the scan file open, click on the drive name above: "WD My Book Media". It looks like the found file tree will appear in the blank box to the right. Navigate to the files you want, select them, and recover to a different drive.
I haven't had to use Data Rescue in awhile, I don't recall where every control is. I was hoping someone with more recent experience would speak up.
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