Linux服务器磁盘坏道怎么修复？针对这个问题，今天小编总结这篇有关磁盘修复的文章，希望能帮助更多想解决这个问题的朋友找到更加简单易行的办法。
一、处理过程
1、磁盘坏道检查
出现问题之后，首先把业务停掉了，然后把磁盘卸载掉来进行修复，出现这种问题有可能是磁盘的磁道有坏区，我首先检查了一下磁盘坏道的情况。
badblocks -sv /dev/sdb
差不多检查了一些时间，发现并没有坏道。
2、修复磁盘文件系统
在修复文件系统的时候发现无法修复，提示Superblock invalid。
[root@ad4 ~]# fsck -t ext4 /dev/sdb
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
fsck.ext4: Superblock invalid, trying backup blocks…
fsck.ext4: Bad magic number in super-block while trying to open /dev/sdb
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
3、查看文件系统备份Superblock
[root@ad4 ~]# mke2fs -n /dev/sdb
mke2fs 1.41.12 (17-May-2010)
/dev/sdb is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=1 blocks, Stripe width=0 blocks
122093568 inodes, 488364854 blocks
24418242 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
14904 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
4、修复文件系统
e2fsck -b 214990848 -y /dev/sdb
出现了很多修复的东西，修复成功
