Q: Mavericks corrupts external hard drive

Scooter NJ wrote:

 

- on Sunday, while disk was running, accidentally touched the power cord and power may have been lost to the drive (so improperly ejected); when reconnected, the MyBook and EFI icons (and seemingly "empty" drive) appeared

fwiw, I am 95% sure my WD MyBook Studio II problems happened after a "improperly ejected" event too...

@dtise

I tried what you experimented with cloning with CCC. Unless I don't know how ot use this tool, the clone took 5 seconds just to copy the .DS_store file, which is the only file/directory listed in the source section.

I did that using a MBP with ML

Cannot do an image either as it says the source disk is empty.

dtise wrote:

 

As with most on this forum, I have experiance data loss. In my case on a WD Studio Edition ll Raid 0, that ran fine with all information until I restarted the new IMac. Shortly after I noticed the the Drive Name as My Book and found all data apparently missing. I have put that drive away until I hear something definitive as to whether anything will be able to be recovered in usable form.

 

Pertaining lifesaver 101 question. This whole thing happed as I was transitioning from an old Mac Pro to a new iMac. When I upgraded to Mavericks the problem begain. I have an external WD Thunderbolt Duo 8T operating in Raid 1 (4T), which was copied from an internal Raid 1 in my MacPro. I have had no issue with the Thunderbolt drive and therefore have that data, as well as the original data still residing in my MacPro, which I will not get rid of until all of this has settled.....and may keep the drives anyway.

 

As an experiment and after uninstalling all WD software using recent uninstaller on both my new iMac AND the MacPro running 10,7.5, I bought a WD Studio 4T drive and reformatted on the MacPro using Disc Utilities. Then cloned the drive using CCC over USB2. I just connected the drive to the iMac, still running Mavericks, and the drive mounted just fine with no problem - could see all data. I then restarted the iMac, with new drive still attached via USB 3 and all was fine with no reformatting issues. I have only done this once, but so far so good. Ultimately, as many have said, it's not a WD problem alone, it some unknow combination of external drives and Mavericks. I may leave this drive attached for a few days to see if if it fails eventually, as I have rududant backups.

 

Whatever you do, make sure you have multiple backups, especially untill this issue is resolved by Apple and HD vendors.

 

Hope this helps.

I agree - the problem seems to be with improper disconnect. I corrupted a drive on a momentary cable failure while my other 4 drives are running perfectly for several weeks now.

Based on my experiences with the Seagate drives, I don't think it requires an "improper" disconnect. I've had 2 dirves fail to mount and become "unrepairable" immediately after they were unmounted by Disk Utility. Note the drives and cables had not been touched. I was runnning my MBP via Apple's own OSX Server Screen Sharing.

I have been able to copy several Ts of files/folders off of these two drives using 10.6.8 and/or 10.4.11. I've spot checked the files and they look good.

I think that in some circumstances Mavericks simply doesn't handle unmounting external drives/volumes correctly making the drive/volume appear to be badly damaged even when they really aren't. This may or may not explain the problems with WD raid setups. But it may be the trigger that sets a drive up for a future "failure".

--- GetRealBro

It doesnt look like apple is coming up with a fix for this MAJOR ISSUE they have caused  with maverick. Im using a macbook pro 2010 6.1 and when upgraded the express card slot is not being mounted.

If Apple  caused it as you claim, then why have Western Digital publicly admitted to being at fault with their external drive issues?

Pete

I think you're right. My issue was with my Drobo, but it was renamed "MyBook" and terrabytes of information lost! Why else would all these problems been related to "MyBook". I ran software trying to recover the data for 16 days! I wasn't able to recover any of it. It took so long, because the Dobo's volume size (to make it expandable) was listed as 16TB. It actually was data, but all was corrupted. It's a shame, I have many WD drives and have never actually had one fail. Some are many years old.

Follow the posts on this thread in the Forums. It's NOT just WD drives. It's Mavericks.

Great, then you won't mind posting a link to an official statement on this?

Thanks

Pete

My issue was with my Drobo 5D thunderbolt, it was renamed "MyBook" after upgrading to Maverick and terrabytes of information lost! Seems all of these problems been related to "MyBook". My MyBook Studio edition WASN'T even connected! Hadn't been connected for some time! I ran software trying to recover the data for 16 days! I wasn't able to recover any of it. It took so long, because the Dobo's volume size (to make it expandable) was listed as 16TB. It actually was data, but all was corrupted. Horrible catastrophe apparently caused by WD software combined with Maverick upgrade.

Exactly the point. There has been NO response from Apple on this.

GetRealBro 

had 2 dirves fail to mount and become "unrepairable" immediately after they were unmounted by Disk Utility

Its not that unmounting was causation leading to repartitioning and data corruption, rather a unified sequence of unmounting--repartitioning--and data corruption is occurring from indications. 

ttd mediamusic 

   It doesnt look like apple is coming up with a fix for this MAJOR ISSUE they have caused  with maverick.

No, dont conclude that current silence is indication of anything of the sort. 

Ive worked for a large multinational that had a couple such occurances and people took temporary silence as "apathy".... but thats not the case at all.

Its far better for any company logically to make absolutely 100% that a fix is correct than making a half-effort to solve any issue.

A half-fix etc. is what all companies try to avoid, ..behind the scenes any/all fix is being verified that its will be a blanket fix for the spectrum of affected HD.

Peace

petermac87 

Seriously, if you are going to make such a claim then back it up with something at least.

No need to be confrontational with someone , ...namely if they are frustrated over lost data which is understandable.

1. find alternatives until a solution is present

2. help in any way possible/ suggestions etc.

3. be kind and realize someone is just frustrated over lost data,..understandable.

So you are making your judgement that it is ccompletely Apples fault from the conflicting reports in these threads? Seriously, if you are going to make such a claim then back it up with something at least.

Pete

Pete,

It would be nice if Apple grew a pair and commented on the situation given the problem's destructive nature.  

Without such information it is nearly impossible to know the root cause and therefore "back up" the speculation.

Given the discussion in this thread it appears to me there are actually two problems, one with WD software and another with Mavericks. I believe the WD problem has clouded the Mavericks problem.

Only time will tell.

Curt

Yes in your humble opinion. Tell them, not us. Has it been proven that it is Apple Mavericks fault? I know WD have admitted being at fault with their HD failures. Back up your claims or stop speculating on the cause. It is so easy to cast blame. Don't you think that it is being worked on by the perpetrator?

Pete