Ext3 Fs Error Unlinked Inode In Dir

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Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta http://serverfault.com/questions/316745/server-frequently-gets-read-only-file-system Discuss the workings and policies of this site About Us Learn http://dbakevin.blogspot.com/2012/09/mount-point-suddenly-turned-into-read.html more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a ext3 fs minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Server Frequently gets Read-Only File System up vote 3 down vote favorite 1 This server has RAID-1 configured. It get readonly file system everyday. if i reboot it, it gets back with ext3 fs error a read-write file system. but after a short while, readonly again... Any idea please? Thanks. # dmesg |grep error VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! VFS: cannot write quota structure on device cciss/c0d0p8 (error -30). Quota may get out of sync! EXT3-fs error (device cciss/c0d0p8): ext3_lookup: unlinked inode 71927230 in dir #71927229 EXT3-fs error (device cciss/c0d0p8): ext3_lookup: unlinked inode 71927273 in dir #71927229 EXT3-fs error

issues. Pages HOME INDEX ARCHIVE September 8, 2012 mount point suddenly turned into READ ONLY A RAC system, the GRID mount point on eighth node suddenly turned into read-only mode: [oracle@node8 ~]$ cd /prod/grid [oracle@node8 grid]$ touch 1 touch: cannot touch `1': Read-only file system Instance is down due to that.We can see below error in OS log: Sep 5 03:26:13 node8 kernel: EXT3-fs error (device dm-226): ext3_lookup: unlinked inode 426196 in dir #2244752 Sep 5 03:26:13 node8 kernel: EXT3-fs error (device dm-226): ext3_lookup: unlinked inode 426199 in dir #2244752 Sep 5 03:26:13 node8 kernel: ext3_abort called. Sep 5 03:26:13 node8 kernel: EXT3-fs error (device dm-226): ext3_journal_start_sb: Detected aborted journal Sep 5 03:26:13 node8 kernel: Remounting filesystem read-only Something wrong with inode in dir 2244752.To found out what dir 2244752 is, we can use linux kernel command:debugfsBut in this case i don't care what the dir 2244752 is, we only want the issue to be fixed.So we need to un-mount the mount point, use fsck to fix the Inode issue, and then re-mount the mount point.We use losf/fuser command to find out all related processes and kill them, and through losetup command we ensure no resclusive device for this mount point, but still when we try toumount the mount point through "mount -f", it reports mount point busy: [root@node8 log]# fuser /prod/grid [root@node8 log]# [root@node8 log]# lsof |grep /prod/grid [root@node8 log]# [root@node8 log]# losetup -a [root@node8 log]# Above case means the mount point is holding by kernel, not a process.In this case,we canuse "umount -l" totrigger a lazy umount, but with lazy umount, it will damage the file system when we try to fsck.Also it may prevent us when we want to mount it back.A clean and safe way is to reboot the server. After that we succeed fixed the mount point read only issue. Tags： d2bugfs, device busy, ext3_lookup: unlinked inode, Inode, losetup, read only, Read-only file system, Remounting filesystem read-only 0 Comments: Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) ABOUT ME Kevin Zhang crtea1@msn.com View my complete profile Posts Atom Posts Comments Atom Comments Hot Posts resmgr:cpu quantum simulate one ORA-01161, solving for ORA-01161 and ORA-01189 Real meaning and Simulate "ORA-01152: file was not restored from a sufficiently old backup" deinstall oracle 11g on linux ORA-1628: max