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Recover files from RAID 1 external
So my 3.5″ dual-drive box stopped mounting, as if it didn’t exist, to my laptop. Tech support was no help, and after exhausting possibilities myself, I decided scientific method might help to decide if the drives or the “box” is to blame. As the laptop and OS has never changed, I rate that a constant, and look there last.
But to my (ignorant) surprise, you don’t just take a mirrored drive and slap it into a dock of some kind. It seems to have no “identity” by itself, “unknown partition” comes up in disk utility (though the 1TB capacity lists). Do I need to recreate the RAID 1 “environment” for the drives to be mountable again (and would the original RAID card need to be matched), or am I just out of options. “Mirrored” is looking more troublesome than just copied to single drives x 2 (or more).
Hope my lameness is at least humorous enough to garner some help, other forums are often just quiet. Thanks for all I’ve learned so far…FYI: 13″ MacBook Pro 7,1; OSX 6.8; iStoage Pro idock II (stock 1TB Barracudas)
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12 Replies
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Michael,
Knowing who’s “box” you are using would help to understand possible solutions. I take it you tried all available I/O, inputs, on the “box” & it still didn’t mount?
Jonathan Schilling
Vertical Sales Manager
Proavio
12221 Florence Ave.
Santa Fe Springs, CA 90670
Dir: 562-777-3498
Main: 562-777-3488 X106
Fax: 562-777-3499
Email: jon@proavio.comSee our forum: https://forums.creativecow.net/proavio
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Hi John,
That would be the iStorage Pro idock II, with 2 x 1TB Barracudas (in the FYI at bottom). Yes, both FW800’s, the USB2, don’t have a 1394A to 1394B cable or express card option to test the rest. Restarted several times with each test, never came back. Both drives spin up fine, and seem healthy, I just can’t see/access the data. Disc image was a perfect copy of the same problem. Clueless…
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Michael,
I think I overlooked the information pertaining to your box, I thought it was a dock or something…. Did you ask the istoragepro guys if they would send you a replacement chassis to try out? My guess is that the bridge-board inside the chassis is fried.
Jonathan Schilling
Vertical Sales Manager
Proavio
12221 Florence Ave.
Santa Fe Springs, CA 90670
Dir: 562-777-3498
Main: 562-777-3488 X106
Fax: 562-777-3499
Email: jon@proavio.comSee our forum: https://forums.creativecow.net/proavio
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I offered to return it by mail or in person (I’m in the Valley), at my expense. They just changed the subject, wouldn’t issue an RA (I’ve worked retail, I know the drill), and I wasn’t willing to RA online after that. Very disappointing.
p.s. it was a gift, and my brother doesn’t have the original receipt, although I have the Amazon packing slip.
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Hi Michael,
I am not familiar with the iStorage Pro idock II, but it does sound like the internal board has gone bad. I would look at getting the enclosure serviced or replaced. If you recreate the RAID-1 set with the current enclosure you may run into the same situation down the line.Luis Rodriguez
Proavio
12221 Florence Ave.
Santa Fe Springs, CA 90670
Dir: 562-777-3498
Main: 562-777-3488 X109
Fax: 562-777-3499
Email: luis@proavio.com -
Exactly. If I put both drives into another RAID 1 enclosure, will they (if healthy) read as the 1TB mirrored system I had before. Separately, they’re invisible, reading as unformatted. Would the specific Oxford card (from the idock) be needed/matter? Before I buy another (brand), I’d like to know.
p.s. If one of my mirrored drives died, what would I do?
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You will need an enclosure that is using the same chipset at the iStoragePro iDock II. It is always best to use the same enclosure model. RAID-1 implementation can vary from chipset or firmware.
Luis Rodriguez
Proavio
12221 Florence Ave.
Santa Fe Springs, CA 90670
Dir: 562-777-3498
Main: 562-777-3488 X109
Fax: 562-777-3499
Email: luis@proavio.com -
Thanks Luis (and Jon),
I thought it might be that specific. I think there’s a lot of RAID 1 owners who are not as safe as they think. Having an identical copy of all the data means nothing if it can’t be accessed. And if a drive died, would I clone/disc image the other to restore it, or does that work? I’ve heard people much further into storage discourage RAID 1 reliance. I’m learning…
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The RAID chip or algorithm, in the case of some chipsets, will be able to duplicate the data onto a replacement drive if you have a disk failure. Technically your data and the remaining drive should still mount(usually in a “degraded” state) after failing a drive.
Luis Rodriguez
Proavio
12221 Florence Ave.
Santa Fe Springs, CA 90670
Dir: 562-777-3498
Main: 562-777-3488 X109
Fax: 562-777-3499
Email: luis@proavio.com -
Hi Michael,
I am with iStoragePro, I will walk you through the RMA process and help identify issues. Please contact me at Katie@cidesign.com or 1.800.272.0062 ext 221.
Katie
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