Filesystems automatically umounted Closed/Synced Post: 302193114

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Operating Systems AIX Filesystems automatically umounted Closed/Synced Post 302193114 by bakunin on Thursday 8th of May 2008 02:16:27 PM

05-08-2008

Registered User

The "mount = TRUE" indicates that the FS would be mounted automatically during a reboot, so that rules a reboot out.

The only other way to get a FS into "closed" state is to umount it. Maybe this is done by some script, which runs frequently?

You could write a little script which tests if /home is still mounted in regular intervals and writes a timestamp to a log file each time it is. This way you cound find out when exactly the umount happens. Have a look then in the crontabs, maybe you can find the "offender".

Just guessing, but could it be some that a script mounts an NFS share, tries to umount it and simply gets it wrong - umounting not the NFS share but the /home FS?

I hope this helps.

bakunin

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LEARN ABOUT POSIX

umount.nfs

UMOUNT.NFS(8)						      System Manager's Manual						     UMOUNT.NFS(8)

NAME

       umount.nfs, umount.nfs4 - unmount a Network File System

SYNOPSIS

       umount.nfs dir [-fvnrlh ]

DESCRIPTION

       umount.nfs and umount.nfs4 are a part of nfs(5) utilities package, which provides NFS client functionality.

       umount.nfs4  and  umount.nfs are meant to be used by the umount(8) command for unmounting NFS shares. This subcommand, however, can also be
       used as a standalone command with limited functionality.

       dir is the directory on which the file system is mounted.

OPTIONS

       -f     Force unmount the file system in case of unreachable NFS system.

       -v     Be verbose.

       -n     Do not update /etc/mtab.	By default, an entry is created in /etc/mtab for every mounted file system. Use this option to skip delet-
	      ing an entry.

       -r     In case unmounting fails, try to mount read-only.

       -l     Lazy unmount. Detach the file system from the file system hierarchy now, and cleanup all references to the file system as soon as it
	      is not busy anymore.

       -h     Print help message.

NOTE

       For further information please refer nfs(5) and umount(8) manual pages.

FILES

       /etc/fstab	 file system table

       /etc/mtab	 table of mounted file systems

SEE ALSO

       nfs(5), umount(8),

AUTHOR

       Amit Gud <agud@redhat.com>

								    6 Jun 2006							     UMOUNT.NFS(8)