how to recover data from a NAS drive

I#m using Sitecomnas MD 253
suddenly the NAS does no longer shop up my folders ....  all data lost ???

Web server from NAS reports that HD are ready for use ....  fine .
NAS drive has been in RAID1 mode.

I can connect drives with my computer via USB, but no drive letter is assigned - no ideas how to access these drives
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noxchoIT Product ManagerCommented:
Connect the drive as internal - go to Windows Disk Management - right click on partition - change drive letter and paths - assign drive letter. Can you browse it via My Computer now?
If the drive is faulty you may be able to recover your data with:

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BdLmAuthor Commented:
the HD in trouble is drive 3 -
can not assign a Drive letter -   any free to to recover data @ this condition

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noxchoIT Product ManagerCommented:
I think your NAS was using some Linux file system and thus you cannot mount it as file system is not detected.
Yes, there are free tools you can try your luck with:
- Recuva
-Volume Explorer tool of Paragon Software that you can find in any trial version. Download trial version from this link:
Install it onto this machine (Windows7?) then run it. If you are working with server then you need to download server version from the same site.
As you run the installed product (BTW no need to restart the system) - find in the middle of the window in vertical tabs list Volume Explorer. Open in it your drive and partition on it. Does it dig into the file structure? If does then right click on files - Export - select where to save.
And finally there is trial version of Get Data Back that will show if it is possible to recover data and if it you can buy it.
Also you can download Linux Ubuntu or Knoppix Live CD boot from it and try to mount this drive. If my first guess is correct and the drive has linux FS then you should be able to browse the drive.
BdLmAuthor Commented:
yes you are right the NAS uses LINUS as OS
will try the ubuntu OS
noxchoIT Product ManagerCommented:
Volume Explorer must see the Linux file system as well.
BdLmAuthor Commented:
sorry made a mistake

accept answer and do not close the question .....

even found the best program  by myselft :-))       

BdLmAuthor Commented:
the best hint :

my NAS is using Linux

the best software for file recovery     (and free !!!!!!)
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