Uninitialized partition after power failure
Posted: 10 Jul 2012, 18:27
In a nut shell, after a power fail a partition came up uninitialized.
more details
4 disk raid 5 array on an areca arc 1120 sata controller.
Drive was initialized using the controllers firmware, the disk was then
prepared for use under GParted Partition Editor where partition is
created and formatted as 1 JFS drive, total size is approaching 6tb, 4x
2 tb seagate drives
I'm running Fedora Linux F14 x64.
I was trying to install Fedora 17 and got 90 % complete
when the lights went out. Not sure if it was the power failure or a
mistake in selecting what drives to use for the install.
But after getting the machine back up and running the device /dev/sdc
has no partitions defined.
In Testdisk, I tried using intel format but it didn't work so I switched
to efi gpt and found the areca3 partition. I selected that one and did a
write and reboot but I can't mount the partition and fsck also fails.
can you offer a few pointers on how I might be able to recover the
partition?
Here is the mess I see after a quick scan under intel format:
TestDisk 6.12, Data Recovery Utility, May 2011
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
Disk /dev/sdc - 6001 GB / 5589 GiB - CHS 715399 64 32
The harddisk (6001 GB / 5589 GiB) seems too small! (< 32 TB / 29 TiB)
Check the harddisk size: HD jumpers settings, BIOS detection...
The following partitions can't be recovered:
Partition Start End Size in sectors
> FAT12 168535 48 3 2257495 60 30 4278190492
FAT16 LBA 1586878 53 29 3225922 22 30 3356761122
FAT16 >32M 2092362 30 12 2356790 8 1 541547829
FAT32 LBA 2123636 42 9 3467124 42 8 2751463424
FAT16 <32M 2258043 63 29 3916388 6 1 3396288709
[ Continue ]
17 TB / 15 TiB
Any ideas how to proceed?
Moving on to
more details
4 disk raid 5 array on an areca arc 1120 sata controller.
Drive was initialized using the controllers firmware, the disk was then
prepared for use under GParted Partition Editor where partition is
created and formatted as 1 JFS drive, total size is approaching 6tb, 4x
2 tb seagate drives
I'm running Fedora Linux F14 x64.
I was trying to install Fedora 17 and got 90 % complete
when the lights went out. Not sure if it was the power failure or a
mistake in selecting what drives to use for the install.
But after getting the machine back up and running the device /dev/sdc
has no partitions defined.
In Testdisk, I tried using intel format but it didn't work so I switched
to efi gpt and found the areca3 partition. I selected that one and did a
write and reboot but I can't mount the partition and fsck also fails.
can you offer a few pointers on how I might be able to recover the
partition?
Here is the mess I see after a quick scan under intel format:
TestDisk 6.12, Data Recovery Utility, May 2011
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
Disk /dev/sdc - 6001 GB / 5589 GiB - CHS 715399 64 32
The harddisk (6001 GB / 5589 GiB) seems too small! (< 32 TB / 29 TiB)
Check the harddisk size: HD jumpers settings, BIOS detection...
The following partitions can't be recovered:
Partition Start End Size in sectors
> FAT12 168535 48 3 2257495 60 30 4278190492
FAT16 LBA 1586878 53 29 3225922 22 30 3356761122
FAT16 >32M 2092362 30 12 2356790 8 1 541547829
FAT32 LBA 2123636 42 9 3467124 42 8 2751463424
FAT16 <32M 2258043 63 29 3916388 6 1 3396288709
[ Continue ]
17 TB / 15 TiB
Any ideas how to proceed?
Moving on to