3tb WD30EZRX HFS(+?) power surge
Posted: 11 Mar 2016, 21:39
I have a 3TB WD30EZRX that I was using as an external backup for my Mac, so I believe it was formatted HFS+ (the usual Mac format, extended journaled). I ran TestDisk and it warned me that "partition sector doesn't have the endmark 0xaa55". I wasn't sure what geometry to select (tried 1 head 1 sector / head, as well as 16 heads, 63 sectors), and it would not give me a hint as to what type of partition table it has. It appeared to default to the second choice (EFI?), but that seemed to stay on 01% of the scan, so I tried it with Intel partition table and I get the output below (this is the second time it ran, and it did not find a partition before).
The story is that I the disk got a power surge of 22 Volts for un unknown amount of time. I removed the TVS diode and it spun up again in a new enclosure, but showed as "uninitialised" by mac os x.
I didn't change the sector size, but i'm confused by logical 4096 and physical 512 sized sectors. which one do I choose for these bigger *TB drives?
Your help is much appreciated!
The story is that I the disk got a power surge of 22 Volts for un unknown amount of time. I removed the TVS diode and it spun up again in a new enclosure, but showed as "uninitialised" by mac os x.
I didn't change the sector size, but i'm confused by logical 4096 and physical 512 sized sectors. which one do I choose for these bigger *TB drives?
Your help is much appreciated!
Code: Select all
Disk /dev/rdisk2 - 3000 GB / 2794 GiB - CHS 5814021 16 63
Analyse cylinder 5137898/5814020: 88%
Invalid FAT boot sector
0 D FAT16 >32M 1138838 6 50 2319657 8 28 1190265657
FAT16 >32M 1138838 6 50 2319657 8 28 1190265657
check_FAT: can't read FAT boot sector
Invalid FAT boot sector
0 D FAT12 6240542 13 11 8380364 4 45 2156940044
FAT12 6240542 13 11 8380364 4 45 2156940044
Invalid FAT boot sector
0 D FAT32 5380845 1 58 8995293 3 10 3643363663
FAT32 5380845 1 58 8995293 3 10 3643363663
check_FAT: can't read FAT boot sector
Invalid FAT boot sector
0 D FAT16 <32M 8126824 0 47 8823145 13 41 701892382
FAT16 <32M 8126824 0 47 8823145 13 41 701892382