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 Post subject: LS-CHL Failure
PostPosted: Fri Feb 12, 2010 7:47 pm 
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Joined: Fri Feb 12, 2010 7:23 pm
Posts: 11
Hi Guys,

So my NAS failed a few nights ago, I had a red flashing light which went 6 times. The thing is only a few months old!

I figured the warranty would almost certainly only cover the device rather than data and after looking into the flashing red lights, I figured the data was probably still intact.

I pulled the drive out of the device and attached it to my PC - looks like its ext3, although I can't see anything with Linux other than a drive with 4 partitions, none of which seem readable. I switched back to Windows as I have a program called R-Studio which is a data recovery product (fairly old version, I'd consider updating to the latest version if anyone thinks it might help recover the metadata).

After spending a long time recovering data, all of the file names are missing. It looks like a lot of it is intact, but there are thousands of files on the drive (mainly music and video and around 900gb of it). Obviously going through it and renaming everything is something I'm not gonna do.

I do have most of it backed up, although there is probably 100gb or so of tv shows and movies from itunes that I don't have a second copy of because I simply ran out of space.

Has this happened to anyone else? Did you manage to recover it succesfully? I now have an identical 1tb WD drive spare for the recovery, but without the metadata I think it's pointless wasting much more time.

If anyone can help me recover this, I'll gladly give you the Buffallo box, minus the 1tb drive.

Any and all suggestions greatly appreciated!!


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 Post subject: Re: LS-CHL Failure
PostPosted: Fri Feb 12, 2010 9:32 pm 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
what country are you in


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 12:14 am 
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Joined: Fri Feb 12, 2010 7:23 pm
Posts: 11
I'm in the UK


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 12:22 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
i will recover the data for you

what did you do exactly to kill it


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 2:33 am 
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Joined: Fri Feb 12, 2010 7:23 pm
Posts: 11
You sound confident, is this something that is fairly regular with these? Can you get the metadata back or is that gone? I've managed to pull most of the data off, but there are no file names at all.

All I did was copy about 180gb of video off of it, then turned it off. The next time I turned it on it wasn't happy and wouldn't show up on the network, I used the CD that came with the NAS and it found it, although it said the drive wasn't recognised so could do nothing further with it. I power cycled the device and then got the flashing red light 6 times.

So what methods would you use to recover the data? I'm not an amateur when it comes to IT, I'm a senior sys admin for a large data centre. It's just that my background is Windows and more specifically Exchange mail servers.

What I was hoping for was some suggestions as to how to do this myself, I'm not very familiar with the ext3 file system though. If you can provide some tips for doing that, I'll post the nas box minus the drive out to you ASAP. I could probably even find you a 500gb drive too if that's something you'd be interested in.

I have to say, I'd prefer not to post the drive itself - a little too much personal information on it. If you're local to Cambridge and think that you'd need to see the drive, I can come to you or you are welcome to come to me, i'd pay your fuel etc. I would prefer to get the data off myself though.

Many thanks for the reply.

Jay


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 2:41 am 
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Posts: 714
the easiest way to recover the data
is to clone the first 2 partitions from another chl drive
the nas will then boot up fine with your data on it
to be moved off

though not everyone has this option
and you have to know which partitions to delete
i have done this atleast 50 times

im nowhere near cambridge sorry

the data partition should be fully intact
aslong as you havnt written to it whilst it was connected to a pc

i usually use drive image 2002 on a boot cd
connect working hd
connect dead hd

boot into drive image 2002
it will moan about something or another dont let it fix
goto delete partitions
make sure its correct drive!!!!!!
delete the first partition 180meg ish
delete the second partition 400 meg ish

then just copy the partitions from the other drive
after its copied them it will say bad inode or something


Last edited by Shonk on Sat Feb 13, 2010 3:00 am, edited 2 times in total.

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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 2:51 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
i presume they are 180 and 400
as the hs-dhgl is
the chlv2 is 1gig and 4.8gig

i have never checked on a chl v1


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 3:09 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
If you have access to another chl
i can take photo's and give you a detailed guide
so you dont mess it up

If you dont have any access to another chl

i can get it going rsync it all over to another nas
format the hd to fat 32 and rsync it back over
then format the nas that had the data on it

i dont have any interest in your bomb building plans/monkey porn
and wouldnt even look :p


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 3:28 am 
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Joined: Fri Feb 12, 2010 7:23 pm
Posts: 11
I'm assuming it's a v1, the only reason for this is that next to the serial number it is labelled as LS-CH1.

As for partitions, I have the following:

977 MB Ext2

4.77 GB RAW

977 MB RAW

917.20 GB RAW

There is also 7.64 GB Unallocated

So from that, it's obvious which is the data partition, but what are the others? I'm guessing the 977 MB ext2 partition (1st on the disk) contains the NAS os, but what's the 4.77 GB partition?

Nothing has been written to the drive, I'm fairly confident of that.

Lol the bomb making plans & monkey porn comment by the way!! I hope I didn't offend you in anyway regarding the mention of not wanting to send the disk off to someone I don't know, I hope you understand my reasons and also that I do really appreciate the time you've taken so far to give me some decent advice.

It would probably need to be NTFS or any OS X file system by the way, I think I have some files on there which are over 4 GB.

Are you in the UK and would you be confident of restoring all the correct file names and extentions?

Cheers,
Jay


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 3:35 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
were the web menu's red or blue?


977mb is /boot (first one)
4.77 gb is rootfs

aslong as the data partition wasnt written on whilst connected to the pc
all data will be as it was before you had problems

sent you a pm btw


Last edited by Shonk on Sat Feb 13, 2010 3:47 am, edited 1 time in total.

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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 3:42 am 
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Joined: Fri Feb 12, 2010 7:23 pm
Posts: 11
I think they were red, not 100% sure though.

Just been thinking about the rsync suggestions, linux couldn't do anything with the data partition when I had a quick look. I don't know Linux inside out though, there may well be something you can do with mount or other utils to read the disk.

I'm gonna have to go to bed in very soon, but I will read and reply to the PM before I go.


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 3:43 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
its a v2 then

im in the middle of makeing a new firmware build for v2's atm
thats why im up


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 3:51 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
V1 Menu's

Image

V2 Menu's
Image


Last edited by Shonk on Sat Feb 13, 2010 4:03 am, edited 1 time in total.

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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 4:02 am 
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Joined: Fri Feb 12, 2010 7:23 pm
Posts: 11
It's the bottom one for sure.

So you obviously know what you're doing with these boxes then, I wouldn't know where to start with writing firmware! Is that for yourself or for the community?

Will speak to you tomorrow, I'm shattered!


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 Post subject: Re: LS-CHL Failure
PostPosted: Sat Feb 13, 2010 4:07 am 
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Joined: Sat Nov 11, 2006 10:56 am
Posts: 714
Myself & Community

viewtopic.php?f=71&t=21499


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