fsck error 各位大哥支个招！！！

smileslee

环境：
P520 OS 5.3.04  DS4100阵列
意外宕机，启动后，文件系统无法挂载
# mount /kakou
Replaying log for /dev/fslv02.
mount: /dev/fslv02 on /kakou: Unformatted or incompatible media
The superblock on /dev/fslv02 is dirty.  Run a full fsck to fix


# fsck -vvy /dev/fslv02



The current volume is: /dev/fslv02
Primary superblock is valid.
J2_LOGREDO:log redo processing for /dev/fslv02
j2_logredo.cpp: ERROR in j2_logredo line 681, log already redone!

Primary superblock is valid.
        Superblock s_state = 0x2 mode = 0x3
*** Phase 1 - Initial inode scan
*** Phase 2 - Process remaining directories
*** Phase 3 - Process remaining files
*** Phase 4 - Check and repair inode allocation map
*** Phase 5 - Check and repair block allocation map
Inodes not connected to the root directory
         tree have been detected.  Will reconnect.
Inode 1604733 has been reconnected to /lost+found/.
Inode 1604734 has been reconnected to /lost+found/.
Inode 1604736 has been reconnected to /lost+found/.
Inode 1604738 has been reconnected to /lost+found/.
Inode 1604740 has been reconnected to /lost+found/.
Inode 1604742 has been reconnected to /lost+found/.
Inode 1604744 has been reconnected to /lost+found/.
Inode 1604746 has been reconnected to /lost+found/.
Superblock marked dirty because repairs are about to be written.
fsck: Execute module "/sbin/helpers/jfs2/fsck64" failed.# # # # # # # #

此文件系统log为 inline log，大小为2900G

且此卷组只有这个文件系统，剩余空间空间显示为0.

请各位大哥支个招啊，俺实在是没辙了！

AIX深入敌后

你用 smitty fsck试试 找到此文件系统 然后进行修复

tianyue01

2.9T 这个FS真大呀
试试 lqueryvg -Atvp hdiskx 有结果吗?

smileslee

这和直接执行fsck有什么不同么？
文件系统比较大，执行一次fcsk需要3个多小时！

cfed

可以用这个试试dd seek=1 skip=31 count=1 bs=4k if=/dev/lv01 of=/dev/lv01，

要是觉得这个这个不安全，可以dd先备份一下要覆盖的superblock，失败了在dd回来

sorry，这个是jfs的。。。

[ 本帖最后由 cfed 于 2009-11-26 16:30 编辑 ]

smileslee

这是IBM 800给俺的建议，俺也执行过了，还是报以上的错误，800说他们没招了，
难道数据就这样没了么？这个文件系统可没有备份啊：（（

1) #logform /dev/lvname and answer yes 初始化日志设备
2) #dd count=1 bs=4k skip=15 seek=8 if=/dev/lvname of=/dev/lvname (JFS2) (Version 5 only)
3> #fsck -vvy /dev/lvname

yangshichang

同情一下

tianyue01

superblock的恢复应该是这样吧：
dd count=1 bs=4k skip=31 seek=1 if/dev/fslv02 of=/dev/fslv02

但没试过

tianyue01

superblock的恢复应该是这样吧：
dd count=1 bs=4k skip=31 seek=1 if/dev/fslv02 of=/dev/fslv02

但没试过

cfed

getlvcb 输出呢