Practice hard drive failure recovery

This article originally published in: record a disk recovery failure experience -D3TT

Damage to the hard drive: Seagate (SEAGATE) Series Barracuda 3TB 7200 rpm 64M SATA3 desktop hard drive

Because of a sudden power failure, the server third disk (Seagate) and normal operation can not be read, the first hard drive (Western Digital Blue plate 1T) in the / tmp directory permissions loss, a second hard drive (Western Digital Blue plate 1T) normal.

Specific given as follows:

fdisk /dev/sdc 命令
报错：
fdisk: Unable to read /dev/sdc: Input/output error

mkfs -t ext4 /dev/sdc命令
报错:
Warning: could not read block 0: Attempt to read block from filesystem resulted in short read

parted /dev/sdc命令
报错：
Error: /dev/sdc: unrecognised disk label

Try to fix superblock

使用e2fsck -b 8193 /dev/sdc命令，读取多个备份superblock均失败。
mke2fs -n /dev/sdc 可以查看superBlock备份

After the superblock repair failed

lsblk命令查看硬盘信息

NAME                        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sdc                           8:32   0   3.9G  0 disk

仅识别出3.9G

smartctl -a /dev/sdc命令报错
Error SMART Values Read failed: scsi error aborted command
Smartctl: SMART Read Values failed.

So far, I have been powerless.