Mavericks corrupts external hard drive

My WD MyBook studio 2TB (fw800) suddenly shows up empty on my desktop after a Mavericks upfrade on my mid 2009 mbp.


Disk Drill is now scanning the WD, and the files are there, about 1,4 TB of it...


How do I get the disc structure back?


I have no Mountain Lion OS-mac to test the WD in..


I had a bootable Mountain Lion on the WD, could that be the problem?


In Disk Drill MyBook has four units; EFI(200Mb), MyBook(1,8Tb), Unallocated 128Mb and Lost partition (200Mb)

iOS 7, Ipad mini + ios7

Posted on Oct 24, 2013 1:08 AM

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1,484 replies

Nov 12, 2013 2:55 PM in response to PlotinusVeritas

Looks like I'll be picking up another HD, then!


I'll probably have to downgrade back to Snow Leopard before connecting these drives to the computer again, though... Just as a precaution.


I have a question regarding the drives themselves - if I connect both the original and new HD to the laptop, then copy/paste the time machine backup files from the old HD to the new one, will that work? Or do I have to move one of the time machine backups from the old HD onto the laptop, and back said files up onto the new HD using time machine?


(Sorry if that's confusing!) 😊

Nov 12, 2013 3:12 PM in response to Demara

Not an ideal idea at all, if you want a clone, use SuperDuper and clone the TM backup.

SuperDuper is free, it clones one drive to another

Cloning the 1st HD (your original) is best option if you want a redundant copy of a TM backup.


Ideally TM is a system backup, and NOT a data archive. This is why time machine is a "bad" premise for data archives, its buried inside time machine, and quick data extraction is "less than fast".


No, dont worry about moving files from TM to computer or otherwise. You just want a redundant copy.




In the future consider making DATA only (things you made, / saved / created/ etc.) in files on an autonomous HD and leave Time machining for backing up the computer and its resident files.


While time machine is a backup, people make a hyperbolic 'error' out of this thinking that "time machine is therefore a backup/archive of my valuable data etc." its "not", and "not safe" on time machine.


see here for idealized use of time machine:

Methodology to protect your data. Backups vs. Archives. Long-term data protection



Time machine is also a "revolving door" and when out of space erases older files.


Worst still you have no genuine verification that your vital data is ON time machine UNTIL you need it in an emergency, and thats a BAD working premise.


Its like throwing emergency supplies in a dark basement and never knowing if its all still "down there" until you need it.


It could be corrupted, and in the case of "when full old files are erased" time machine is like having a window open on "the basement" and important stuff is spilling out the window into oblivion.

Nov 12, 2013 3:34 PM in response to Demara

time machine contains the ENTIRE OS with its 10s of 1000s of files, a "drag and drop" will likely FAIL


far too many endless 1000s of files, if it worked at ALL it would take 'forever', in which case make a SuperDuper clone.


The program is extremely easy, FREE, well liked and widely used by most ALL Mac users, .......its 2 clicks and sit back and let it CLONE HD A to HD B (exact clone/copy)


http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html



Also consider reading up on what Time Machine is and how to use it "best" and what it is idealized for by the certified "guru" of Time Machine


http://pondini.org/TM/Troubleshooting.html

Nov 12, 2013 10:49 PM in response to donna156

I keep losing all the data on my 8TB G-RAID Thunderbolt drive. Whenever the machine goes to sleep, I get the dreaded "improper disconnection" warning when I wake it up and then a message saying the disk is corrupted and I should back up immediately.


I have nothing Western Digital on my comptuer and never have. This is definitely an issue with the OS.

Nov 12, 2013 11:17 PM in response to RogerOut

Thanks for your advice, its true that IÂŽm not in a rush really. The fact that IÂŽve been hanging on to Snow Leopard can testify to that. I have deliberately sitting out both Lion och Mountain Lion because it didnÂŽt seem worth it. Its just that I was looking forward to getting some more speed in my old machine since IÂŽve been reading about higher performance with Mavericks.


IÂŽll take your advice and make more backups before eventually updating in the future.


Thanks

Nov 13, 2013 5:06 AM in response to AntonFagerberg

Dear Anton,

I wrote to my local WD support and I got at first loosy answers. I wrote a second time and my questions, I have been told, have been passed over to the second level. In the meanwhile I am here with a unmounted 500GB WD external disk drive which I used to save all my photos, music and backup files.

Is anyhow thinkable for you to share the key of Easy Recovery 11 Professional with me if it works?

Thanks.

Nov 13, 2013 6:18 AM in response to ciu5781

I probably have over 35 WD drives from 8TB Thunderbolt to 160GB passports that date back a number of years. They are a mixture of FW, USB 2 and USB 3 and Thunderbolt. I have backups and archive copies.


Question: If I run the WD uninstall program and 'remove' their software, am I safe to install Maverick? Do I need to do anything with each drive or can I just uninstall on my operating system? Three separate computers.

Nov 13, 2013 6:26 AM in response to Trocafish

I've a 500GB Samsung ext HD and just started noticing problems in the last 24 hours with my 13" 2013 Air. I plug it in and my files in the ext HD appear to be either missing or have these 'blank' thumbnails. I try to eject and I get a message saying it's used by another program (which I eventually found out is Spotlight), nothing works unless I restart.


After restart, I configure spotlight to ignore my external disk and I can unmount normally. However, the same problem persists when I try to plug my ext HD again.


Strange thing though is that I wasn't facing this problem a couple of weeks ago and I was already running Mavericks.


😐😐😐


N.B. My ext is NTFS-formatted, I've NTFS-3G and MacFuse installed.

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Mavericks corrupts external hard drive

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