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Could I have two dead drives?

cameronjones
Aspirant

Could I have two dead drives?

Ugh... so I've been working on my client's system for a few hours and it's getting really frustrating. Their mirrored-drive Duo died yesterday and luckily, I had my Duo sitting on a shelf to try out. I put one of the two drives in and fired it up. The drive showed up in Finder on their Mac but clicking it didn't show me any data/shares. After trying a few other things, and trying the other drive, I packed them up and took them home. I found the threads on recovering data from the drives directly without the NAS in Linux.

I've been working on that all night. Took a while to get Linux installed and ready to go. I've run these commands

(1) sudo su
(2) apt-get install fuseext2
(3) apt-get install lvm2
(4) modprobe fuse
(5) vgscan
(6) vgchange -ay c
(7) fuseext2 -o ro -o sync_read /dev/c/c /mnt

But when I go to /dev/c/c / it gives me an error about trying to find a program to open the file type.

I also ran

10. mkdir /mnt/lvm
11. ext2fuse /dev/c/c /mnt/lvm

But when I go to that folder I see an empty folder.

Is it really possible I have two dead drives? I never received any notifications that there was a problem with the drive, though there was a power cut that precipitated this problem.

When I connect one of the drives I get an error saying "unable to mount 2.1gb filesystem, error mounting mount. wrong fs type, bad options, bad superblock on dev/sdc1 etc. This drive does make some funny sounds when connected.

The other drive gives me no errors when I connect it. This drive doesn't make any weird sounds when connected.

Any tips about what to try next? I can't get anywhere!
Message 1 of 4
mdgm-ntgr
NETGEAR Employee Retired

Re: Could I have two dead drives?

cameronjones wrote:

When I connect one of the drives I get an error saying "unable to mount 2.1gb filesystem, error mounting mount. wrong fs type, bad options, bad superblock on dev/sdc1 etc. This drive does make some funny sounds when connected.

This drive is having problems. Most likely failing. You might be able to replace the bad superblock with a backup one, but before trying to recover data off this disk I'd suggest trying recovering it off the other one.

cameronjones wrote:

The other drive gives me no errors when I connect it. This drive doesn't make any weird sounds when connected.

Have you tried booting up the NAS with just this disk installed in the same slot as it was before? Using X-RAID disk 2 is the parity disk. It doesn't have the partition table on it but can be read using the NAS.

I'd suggest opening a tech support (http://www.readynas.com/support) case and editing the thread title (i.e. subject of first post in the thread) to include your case number.

I assume the client doesn't have an up to date backup?
Message 2 of 4
cameronjones
Aspirant

Re: Could I have two dead drives?

Yeah, I tried booting both their and my NAS with both of the two drives to no effect. It's the weirdest thing. No backup unfortunately....
Message 3 of 4
mdgm-ntgr
NETGEAR Employee Retired

Re: Could I have two dead drives?

I'd definitely suggest contacting support. There may be a fee involved depending on what they need to do but they can use remote access to diagnose a problem like this (they can provide you instructions on how to give them access to your Duo).
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