LACie 2big thunderbolt problem: unmount/mount

So, I am "chatting" with LaCie at the moment about the same issue. It seems that when my Mac goes to sleep it unmounts the 2Big. This also happened with my other LaCie product - thus my purchase to a bigger device. Now I have an error in the disk utility that is really bothering me. It states that my first RAID slice has failed. NICE!

Leading me to ask two questions:

1. Is this a Mountain Lion issue? This did not happen with previous OS.

2. Is there a way to keep the disk from unmounting when iMac goes to sleep?

Thanks.

This may be related to this thread.

Problems like this seem to be pervasive across drive types, different attachment types etc.

Further it also seems that for any one user it doesn't affect all drives, just some combination of drive and attachment.

For me, it is only one drive and only when attached via eSATA, it if fine when attached via FW800. The other eSATA attached drive is fine.

For others it is USB 3, FW, etc attachment and only a specific drive.

It is not new in Ml, though for some something in ML "awakens" this issue.

I have this same problem with a 1.5TB Iomega Prestige USB 3.0 drive. When the screen saver engages on its own, the drive unmounts and I have to unplug and re-plug the drive to get it to appear. It doesn't seem to happen when I engage the screen saver manually via a hot corner, oddly.

It's not just the LaCie Thunderbolt drives...it does the same thing to me (dismounts drives on sleep) with their Thunderbolt to eSata hub. It doesn't seem to pass through video very well, either. Annoying!

Any resolution on this?, I just got a LaCie Thunderbolt drive and have all my VMWare Fusion virtual machines on it, in the morning Windows has crashed because the drive went away and didn't come back from sleep. Cycling power with the blue switch doesn't work, I have to physically remove and replug the Thunderbolt cable to get it back.

I'm temporarily disabling sleep but thats not a great solution. Using 2011 iMac and 10.8.2

Nobody at LaCie or Apple seems to care, and they aren't giving refunds. New iMacs have USB3, so I expect Thunderbolt won't last too long, or at the very least, we won't see any other adapters like this.

I've a couple of LaCie Thunderbolt 2Big drives connected to my MacBook Pro... when the Mac sleeps, the TB LaCie drives sleep. Never had a problem getting them to awaken when I wake up my MBP with Thunderbolt Display. No problem with FW800 drives connected to same display, either.

It may be a cable issue? I would try another TB cable and see if that helps.

Clinton

Hi all you 2big thunder people. do any of you know if the blue light button that indicates that the disk i on can be activated whitout the thunderbold cable connected. i have a disk that doesent come to live when i connect it so im wondering if the disk is dead or its the caple.

pleas help!!!

I was having a similar issue and seem to have tracked it down to conflicting remnants of MacFUSE, OSXFUSE, and prlufs.fs (Parallels 8 FS Component that has its own FUSE component) in /Library/Filesystems. Once I removed any trace of MacFUSE and OSXFUSE my Thunderbolt drive stopped spontaneously unmounting/mounting.

Do you have any of these Filesystems plugins?

No. This problem exists with absolutely clean installs.

For the record, my drive does not spontaneously eject. The problem is sleep. The LaCie interface essentially pulls the plug on the drive when going to sleep.

However, there was a goo workaround for the issue if I just selected "Put hard disks to sleep when possible"...that is, up until the 10.9.2 update. Now any drive I have attached to the LaCie Thunderbolt-eSata adapter gives an error that it's been ejected improperly upon wake

Even if I eject the volume, then sleep, I still get the "ejected improperly" error when I wake the machine, which I find particularly odd. The only thing I can do is eject the volume, then power it down.

I thought I had another workaround. There's an app called Jettison that kind of works. It's an ugly solution to have to purchase an app, but Jettison ejects all volumes before sleeping, then remounts them upon wake. Seems like the operating system could do this, too. The problem with Jettison is that it continually asks me to re-authenticate with my Apple ID, which is kind of a deal breaker, because it doesn't launch whenever I switch users, asking for my authentication every time.

Technically, I suppose this si LaCie's design flaw, but FOR THE LOVE OF GOD.....WILL YOU PEOPLE AT APPLE FIX THIS!!!!!!

And the problem is still here with OS X 10.11.3!

I've been having this issue with my 4Big Quadra + thunderbolt->esata converter and it *****.

Lacie keeps pointing it's finger at Apple and Apple doesn't seem to do a bloody thing. Whassup Apple?

Here's my setup: MacBook Pro 15", late 2013, running 10.11.6 El Capitan, although this problem has persisted ever since buying my two 2big 12TB drives in late 2013. And during that entire time, I've had other disks attached and have never had a problem with any of the other disks. Those other disks include several LaCie Rugged drives, both Thunderbolt and pre-Thunderbolt, an HD MyBook, and a G-RAID. Two of the Ruggeds are 4TB Rugged RAIDs.

I've narrowed it down to this: when I wake the MBP from sleep, it takes over a minute for the 2big to spin up and mount. By that time, I've already signed in and get the error message. But if I take a really long time to enter my password, so that the 2big mounts before I hit return, the 2big performs normally... at least about 75% of the time. The other 25% of the time, it fails to mount for reasons I can't explain. And if it ever fails to mount, there's nothing I've found to bring it back short of restarting the MBP. Disk Utility can't even see it.

Is there still no resolution to this ?

Its an official Apple cable, and at $50 I would hope it works. I suspect its an iMac/Mountain Lion issue since thats what people reporting the issue seem to be using