Hi,

Do you have any information about Synology NAS OS from Synology INC?
I mean is there any software to be able to explore Synology partitions?

I have a Logitec LHD-LAN drive which uses the above NAS OS.
Its OS is corrupted (can't boot) and user data could not be accessed through LAN port.

When I was cloning the disk, there were about 300 bad sectors at the beginning of the
drive.

I appreciate any hint or solution.

Pninja

What is the drive used in the NAS ?

Is this a single drive ? or multi/RAID unit? (sounds like single drive). I'm not familiar with this particular model, but in most cases, I have had best results under Linux. This is the underlying OS of many such units. I suspect that it will be viewable/mountable under linux. Besides, Linux can mount nearly any FS, and I have had cases where my linux box (using 1200A ATA controller + SCSI controller) was able to mount drives that were GOOD, but would crash all other systems due to various odd parameters that I won't go into here. Here's something simple you can easily try: put the drives in linux box (assuming you cannot remotely access your box due to inability to boot...I assume you already tried to ssh telnet into it) Usually I find 3 or 4 partitions...OS, swap and data and sometimes more on the drives. You can run fsck in a read-only / safe way first. I would recommend working with clones. also, you can reconstruct the raid under linux as well.

_________________
http://pcrecoveryllc.com

It is a single 160GB WD1600BB drive.

Hi Pcrecovery,
Yes, it is a single drive and has 4 partitions. Any linux/Unix related recovery software I tried shows
them as UNKNOWN partitions. I haven't mounted it under Linux yet. I will try it tomorrow.

Check this out: http://www.ufsexplorer.com/sol_nas.php

_________________
Data-Salvage Data Recovery
http://www.data-salvage.co.uk

Hi Foxy

UFS explorer was the first one I tried. No help
As I said, no commercially available recovery tool recognizes the filesystem.

Pninja

Hi

Thanks to all people who commented on subject (or Very Very kindly offered low price
recovery in private ).
I was able to repair the boot partition and use the original NAS box to access the data.

I prepared a same model NAS box and with comairing the working drive and cloned one
I repaired the partition1 (There were about 300 bad sectors in P1) . Then I connected
the cloned HDD to original NAS box. It booted this time(took long time) with some complains
about mismatching records and so on. When finally it was online, I could brows the data
partition and copy all data.

BTW, The Linux (3 different brands) and BSD could not mount the filesystem.
Just seen as RAW disk or 4 unknown partitions.

regards,

Pninja

So, what is the filesystem type? I find this case quite interesting, since I usually have the opposite situation. I have mounted every and any type of filesystem under linux but not the other way around. I gave this some thought, and it occured to me that perhaps they are implementing a type of Reiser or other FS that your boxes didn't support, but I would have thought they'd use ext3 and samba fs for windoze pc's to recognize. Anyway, I'd like to know the actual FS if you discover it... and congrats on fixing it. I can't always count (or wait) for an identical unit, so I like to know the solution with bare drive(s).

_________________
http://pcrecoveryllc.com

Filesystem is still unkown for me. However I solved the problem but question itself is open. How can we deal with
Synology NAS OS when we don't have identical box? When I was repairing the drive I found it very
similar to RaiserFS file system structure. Reiser recognizes partitions as an Unknown. may be it is
modified version of ReiserFS.
I am going to do research on it until I find a good solution.Here in Japan, we don't have Synology products,
but we have considerable Logitec NAS drives which use Synology OS.

Hi,

I've came across this a couple of weeks ago. same model, a single SATA HDD.

I've search the Synology NAS filesystem for this particular model. You will see something like 'Syno3ft' (sector 62) in hex viewer. I've tried to changed it to ext3fs, doesn't work

That's a firmware update for this box and one of the updates is to change the existing file system to ext3fs which apparently much easy for us to deal with.

Thanks