fsck 如何解决aix的文件系统故障（How does fsck solve file system failures in AIX）.docVIP

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fsck 如何解决aix的文件系统故障（How does fsck solve file system failures in AIX）.doc

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fsck 如何解决aix的文件系统故障（How does fsck solve file system failures in AIX）

fsck 如何解决aix的文件系统故障（How does fsck solve file system failures in AIX） How does fsck solve file system failures in AIX? 2009-04-20 13:55 In the file system maintenance and management process, will encounter some problems, such as the file system cannot be installed or unable to remove the file system, the file system when the super block is destroyed, and not the normal use of the file system, how to repair the main file in the rootvg system, the following discussion of how to solve some common problems in the file system. First, restore the super block error When some users are using fsck or mount commands, when you see the following hint information, there may be a problem with the super block of the filesystem: Fsck:, Not, an, AIX3, file, system Fsck:, Not, an, AIXV3, file, system Fsck:, Not, an, AIX4, file, system Fsck:, Not, an, AIXV4, file, system Fsck:, Not, a, recognized, file, system, type Mount: invalid argument For example, when a user installs an /allenfs file system, the following error prompt appears: #mount /allenfs Mount:, 0506-324, Cannot, mount, /dev/lv1, /allenfs:, A, system, call, on, received, a, parameter,, that, is, not, valid. When the file system was repaired, the following error occurred and terminated abnormally: #fsck /dev/lv1 Not, a, recognized, filesystem, type. (TERMINATED) To solve this problem, can only use the backup to restore the main block of super super block, as we all know, in the file system, No. 1 logical block is the main super block, 31 logic block is a backup super block, put the 31 logic blocks on the contents of 1 logic blocks up to. For example, the logical volume of the file system is /dev/lv1, and the super block commands for restoring the filesystem are as follows: #dd, count=1, bs=4k, skip=31, seek=1, if=/dev/lv1, of=/dev/lv1 When the recovery is complete, the fsck command is used to check the integrity of the filesystem: #fsck /dev/lv1 * * Checking /dev/rlv1 (/allen) * * Phase 0 - Check Log Log, redo, processing, fo