Data Recovery and Disk Utilities Forum @R-TT

Edit: post removed, I didn't realize there was a second page of discussion on this thread...

What are the RAID parameters? For others with the same problem.

Thanks for all your help. I was thankfully able to recover it by using Reclaim-Me and R-Studio to detect and verify the raid parameters needed. I then used Raise Data Recovery for Ext2/3/4 with the raid plugin. Specifying the parameters for it allowed the data to be pulled off. Again, thanks for the help.

I tried to find out the RAID layout for synology hybrid RAIDs, but actually found not much useful information.
What is Synology Hybrid RAID (SHR)
I cannot right now tell you how to create such a structure, I'll try to think it over.

Ok. Thanks. That makes sense as I thought there was only about 5TB of space instead of the 7TB it was reporting with Raid 5, but looking at the data initially pointed to raid 5 and re-claim me felt it was that as well. Is there any hopes in recovering it? How do I go about recovering the data? Thanks for all your help.

Looks like this is a synology hybrid RAID rather than a common RAID5.

It is 64kb. And the unrecognized data has been inserted at 48kb for the first block of data read for every file and then consistently at other points in the file if it's big enough. The unrecognized data seems to be different for every place it occurs. What could this be? Thanks for all your help.

What is the block size of the RAID? 4 KB?

Sorry, I am just now getting back. I've been through it over and over again looking at the data and have verified it is Raid 5 (Left-Synchronous). I've compared a file it recovers to the real complete file and there seems to be chunks of structured data that's been written into the data. It hasn't overwritten any data, it's been inserted in between the data. For example the very first block of a picture shows this data towards the end of the block and it looks like this (.a+..a+..) and takes up 8 sectors (4kb) of data. The a is an a with a ~ on top and the + has a line underneath it the a and the + repeats throughout the chunk, but a different character may appear in front of it like it's displaying all symbols and characters found in the ascii table. It appears about 10 times throughout the 20 mb file and seems to be what is causing the file to load in the wrong order. What would this be? Thanks for any and all help.

Yes, this is an important step what he mentioned. Most NAS boxes have a RAID 1 partition which is mirrored on all drives. The RAID 5 or 6 portion generally starts right after it, but might be a few sectors off in some cases. Usually you can look at the partition table and get an idea what's going on.