ST31000524AS help needed

[aptidude]

Hi,

I got two Seagate ST31000524AS disks from Buffalo NAS which were configured as raid-0.
One of the disk had failed and data not accessible anymore.
The other disk is completely ok and full image taken succesfully.

Here are the symptoms and actions taken so far on the failed disk:
- disk was hardly detected by bios
- when detected and imaging the disk, it disappeared on the fly (ddrescue)

- terminal connection
- cleared SMART (1>N1) -> No help
- cleared G-List (T>i4,1,22)
-> Disk got now detected easier, disk stays permanently "online"
-> fdisk message: "The Backup GPT table is corrupt, but the primary appears OK, so that will be used" -> 6 partitions displayed, looks good

- trying again imaging with ddrescue
-> first small (1GB) system-partition imaged succesfully
-> rest of the data completely skipped and results to "errsize: 999 GB"

Heads resistance as follows:
Head 00 Resistance 00D8
Head 01 Resistance 00BF
Head 02 Resistance 010C
Head 03 Resistance 00BD

Nonresident GList as follows:

F3 T>V40
Nonresident GList
Total entries available: 2
PBA LEN Flags Phy Cyl Hd PhySctr SFI
1F5B9f 3 20 D5 3 19 4D022
1F6CBE 4D 20 D4 3 7B8 4C024


I would highly appreciate to get some advice from you guys if someone has fixed this kind of problem before or an estimate quote for recovery as PM.
Thank you.

[jermy]

If there is NO unusual noise coming from the HDD, a terminal log would be a good start

[drHDD]

I would recommend to go to pro if it's not to late already. You need to repair translator and you need to pay attention to records in V40. You do saved modules before all this staff, didn't you?