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Hello Kumadon,
If you are still having issues with your Drobo FS, please contact our support group - we would like to help:

http://www.drobo.com/support/contact-support.php

Thank You.

DroboSupport

warranty has been expired on this drobo already but since you offered I will call tech. support ...

cgrenier wrote:Looks like the remaining solution is to try PhotoRec to recover some data but original filenames won't be recovered or try some commercial data recovery tools, they may have better success in your case.

well...was hoping your tool would save me... but thank you so much for your time and help.

Run "fsck -p /dev/rdisk2s2" or "fsck -y /dev/rdisk2s2". What are the results ?

looks like the dev is now rdisk1 so I ran as below

bash-3.2# fsck -y /dev/rdisk1s2
** /dev/rdisk1s2
BAD SUPER BLOCK: MAGIC NUMBER WRONG

LOOK FOR ALTERNATE SUPERBLOCKS? yes

SEARCH FOR ALTERNATE SUPER-BLOCK FAILED ...

Run "fsck -p /dev/rdisk2s2" or "fsck -y /dev/rdisk2s2". What are the results ?

bash-3.2# fsck -p /dev/rdisk2s2
/dev/rdisk2s2: No such file or directory
Can't stat /dev/rdisk2s2
Can't stat /dev/rdisk2s2: No such file or directory
/dev/rdisk2s2: CAN'T CHECK UFS FILE SYSTEM.
/dev/rdisk2s2 ...

cgrenier wrote:You have posted the results of Quick Search but can you post the results of Analyse ?

Here is the screenshot of Analyze. Thank you so much for your help. Please let me know how I should proceed from here.

cgrenier wrote:Can you post a screenshot of the ANalyse screen (before Quick Search) ?

Here is the screenshot of the Analyse right before Quick Search

do you want me to kill the current session? been running for like the last 3 -4 days

just to make you understand my drobo better here is the screenshot of the drobo config first

kumadon wrote:Hi

Thank you so much for your reply . As you asked me to run 6.14 I killed the previous session as you can see.

Here is the screenshot of completed scan before I killed the session to run 6.14 . if you look carefully it's reporting that there is nothing wrong with the structure.

cgrenier wrote:EFI GPT is the correct partition table type. Using TestDisk 6.14-WIP, can you post screenshots of Analyse and Quick Search ?

here is the output. I just started the scan so I suppose this will take a few days to complete the scan??

Hi

Thank you so much for your reply . As you asked me to run 6.14 I killed the previous session as you can see.