My 4TB external drive just stopped working a few days ago, and shows up on Mac's Disk Utility but I can't access it or repair it. I don't think the problem is mechanical as the HDD was quite new and wasn't used very much. I'm trying anything to repair it.
fsck_hfs -r -d returns:
And when I try to repair HFS volume using the .pdf guide, and I go to the Advanced menu, TestDisk says that there is no partition available.journal_replay(/dev/disk3) returned 22
** /dev/rdisk3 (NO WRITE)
Using cacheBlockSize=32K cacheTotalBlock=65536 cacheSize=2097152K.
Executing fsck_hfs (version hfs-407.200.4).
Block 2 is not an MDB or Volume Header
Block 7814037165 is not an MDB or Volume Header
volumeType is 0
0000: 0000 0000 0000 0000 0000 0000 0000 0000 |................|
. . .
01b0: 0000 0000 0000 0000 0000 0000 0000 00fe |................|
01c0: ffff eefe ffff 0100 0000 feff ffff 0000 |................|
01d0: 0000 0000 0000 0000 0000 0000 0000 0000 |................|
. . .
01f0: 0000 0000 0000 0000 0000 0000 0000 55aa |..............U.|
unknown volume type
primary MDB is at block 0 0x00
alternate MDB is at block 0 0x00
primary VHB is at block 0 0x00
alternate VHB is at block 0 0x00
sector size = 512 0x200
VolumeObject flags = 0x01
total sectors for volume = 7814037167 0x1d1c0beaf
total sectors for embedded volume = 0 0x00
CheckHFS returned 6, fsmodified = 0
When I use TestDisk to Analyse I get three partitions, all "primary": DOS_FAT_32 (200MB), HFS (3725GB), and another HFS (128MB).
When I select the second partition, the 3725GB one which I think is the one containing all of my files, I'd like to "Write" it but I don't know if it could create more damage, in the case I'm doing something wrong.
How would you proceed?
Thank you very much!