All data gone on My Book Studio II

Same thing happened here right now! Is it Mavericks fault? 

I don’t think it is Mavericks problem as I was testing OS X 10.9 (on separate partition on my mac) since June and had zero problems with peripherials in all beta versions, and finally installed the GM on main system partition a week before the disaster with My Book Studio II happened. So, I was already running 10.9 GM for at least a week without problems with my WD My Book Studio II unit. My mac shuts down automatically every day at 05:30 after performing overnight backups and cloning, then restarts afresh at 05:50. During that week I also have restarted my mac manually numerous times, mainly due to other software being updated to Mavericks. So, if it would be Mavericks fault it would have happened at the first restart, not about 30 restarts later.

Guess what: I just installed mavericks GM so I clearly think it’s got something to do with that. It MUST have…the drive has been rock solid before that. Western digital: HELP

I reckon that the Time Machine software scripting in Mavericks has a bug in it, that causes it to start again and make a brand new Time Machine record.

According to an Apple support statement:  "Time Machine is a backup utility, not an archival utility, it is not intended as offline storage.

In other words if Time Machine fails, you should still have all your original data in it’s proper place. 

You do, don’t you?

I don’t understand why several folk are panicking over this issue!!!

Same thing happened to me after mavericks install !!!

Please HELP !!!

Yep, is seems like a really big problem. Ignore Alcapone, he has not got a clue.

Ok, the drive reset om Mavericks seems to only be happening when the wd drive manager is loaded. I tried without it for some days, and the unit did not reset. Today I tried and re installed wd drive manager and after a cold boot the unit was reset. (all files gone, and drive name reset to default.). So it seems the wd drive manager is not compatible with Mavericks GM:

backfire,

What RAID did you use - 0 or 1?

What configuration Disk Utility was showing without WD Drive Manager installed?

Did you try to use WD Drive Utilities for Mac instead of WD Drive Manager?

I’m waiting for the replacement unit and would like to prepare myself prior to it’s arrival.

I use raid 1. It’s still a raid 1 even with out any WD software, the mac just sees one big disk. I don’t think Drive utilities works with the legacy drives…

I got so tired of this so I just pulled the plug on the wd my book studio II, in fact I’m thinking of taking the drives out of the unit and installing them in an Icy dock raid usb 3 cabinett instead.

http://www.icydock.com/goods.php?id=160

I also got this problem after installing Mavericks yesterday…this morning I almost got some heart faliure…

I Checked the WD with DiskDrill, and all the files are there and recoverable. (tested on a small amount, but no file structure…13 yrs of files in erratic order…oj oj. )

HELP, WD!!

edit: posted on apple forum this morning, still no answer…
https://discussions.apple.com/message/23499357#23499357

Yeah, something strange is going on…I noticed softraid has been updated:

http://www.softraid.com.

Probably because the guy running that company has the know how to see what’s going on behind the scene so to speak.

Something going on with the way Mavericks deals with partitions and stuff. Hope WD and Apple realizes…

Same happened to me with mavericks (also RAID1), I had to reformat the drive.

Everything ‘seems’ to work now, but the problem is I don’t trust the  My Book Studio II anymore.

Also video seems to stutter when playing back from the external Disk.

Same thing happened here right now!! :frowning:

Screen Shot 2013-10-24 at 6.51.37 pm.jpg

Same thing happened to me with a WD My Book Studio Edition II 6TB. After calling WD numerous times they gave up and asked me to ask Apple what Mavericks does to their raid drive and to try recovering my data with a recovery software. 5TB archive gone at the moment, with a partial backup. I’ve never seen anything like this. Very serious and desperate situation.

Cat’s out of the bag:

http://forums.macrumors.com/showthread.php?t=1660392

As soon as I installed OS X 9.0 I received an error message that my WD External drive was not compatible, and since then all backups have failed.

I emailed WD tech support asking if a fix is in the works, but have not yet received a reply.

So, if WD reads this, please reply and let us know if you are going to make your products compatible with OS X 9.0, and when and how will the fix be distributed to users like me?

Thank you.

I don’t claim to be any expert but my guess is that Apple’s (software?) RAID took over and reconfigured the RAID. WD Drive Manager is obviously imcompatible with Mavericks as it appears multiple times in the menu bar everytime the drive is mounted and does not go away without a restart. The  Empty/“MyBook”  state of the drive is stuck no matter where I tried it (OS 10.8 and 10.6 with and without WD software).

I chatted with a higher level Apple tech support and sent him links to these discussions:  https://discussions.apple.com/thread/5475136?start=0&tstart=0 and  https://discussions.apple.com/message/23505869?ac_cid=tw123456#23505869. The end result at the moment was a low level data recovery recommendation which I will try to avoid as long as I can.

I’m holding my breath waiting for a solution from Apple and/or WD where my old volume and data will magically reappear.

Same disaster here. I’m using DataRescue 3 deep scanning the raid 1 now. And it just crashed 10 mins ago. So there’s 66 hours to go.

Any suggestion? I worried about my data a LOT.

I think I cannot trust WD anymore. I just want my data back.

And I’m puzzled that after upgrading to Mavericks (official formal edition) I still got the raid working. All data just vanished this morning.

My drive was killed too. Looked just like ccontreras’ screen shot, with that EFI volume as well. 

RAID 0, My Book Studio II 6 TB, connected via Apple’s Thunderbolt-to-FireWire-800 adapter.

I dared to connect my Thunderbolt My Book a couple of times, and it seems fine. But I have eight other My Book Studio firewire drives that I don’t know what to do with. They all have the latest firmware from WDC, just like the one that got wiped.

Me too.
Just unplug and wait…