[Help]information needed on NAS Raid 10 layout

[dfansler]

Greetings - I have two TerraMaster NAS that have crashed on me. The first is a F4-210 with 4 2TB drives. This one crashed a couple of years ago, and TerraMaster worked (remotely) to get it back going, but in the end was unsuccessful. I sent the drives off to a recovery firm, but $2000 was more than I was will to spend for recovery.

The second unit is a F4-212 with 4 4TB drives. I purchased this unit mid 2025 and it crashed late 2025.

I have downloaded a copy of R-Studio recovery software in an effort to recover the data from the two NAS myself. Both sets of drives are out of their enclosure's and numbered 1-4 starting from the left as you face the front of the enclosure.

I have a Win10 computer with 4 available SATA ports and have connected the sets of drives (one set at a time) to the computer with #1 drive from a set attached to SATA#1on the computer and so for all four drives.

I feel confident that I set both units up as a Raid 10.

Within R-Studio, you select how the drives were used (Raid1, 0 JACD, Raid10, Raid5, Raid6. You move each drive to a virtual block, which I did in the order of SATA#1, #2, #3, #4.

R-Studio is asking for "RAID Parameters" - these are (with available selections shown:
RAID type: Raid0- strip set, Raid10(1+0), Raid4, Raid5, Raid5E, Raid5EE, Raid6(Reed-Solomon, Raid6E (Reed-Solomon), Raid6 (Double XOR)
Block order for: Left Synchronous, Right Synchronous, Left Asynchronous, Right Asynchronous, Rotating N-Data Continuation, Rotating N-Data Reset, Right Parity, Left Parity
Parity delay:Not Used
First Parity: grayed out
Number of Rows: while you can change this number, it is automatically set according to the Raid chosen
Block Size:from 512k, to 128MB where each number is a double of the previous (512k, 1k, 2k, 4k, 8k . . . .

And now for the question! Other than Raid10, what should all the other Raid Parameters be set too.

So far my attempts have been meet with the message about not having a valid file system found.

kind regards,
David

[TMzethar]

Hi, sorry to hear these.
The RAIDs from F4-210 and F4-212 are all software RAIDs. Please check if the E-Studio software you are using has a processing mode for software RAIDs. It should not require 'RAID Parameters'.

[TMzethar]

The soft RAID10 of TOS uses the default 'near'. I hope this can be helpful for your research and attempts.