Help with NFS shares Post: 302878015

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Operating Systems Linux Red Hat Help with NFS shares Post 302878015 by phanidhar6039 on Wednesday 4th of December 2013 08:51:32 AM

12-04-2013

Registered User

Quote:

Originally Posted by Peasant

If you can cd into the folder and df -h . shows that it is NFS, there is nothing strange or missing.

Automount will umount the NFS share if it is not used for configured time of seconds (check man automount).

It will also mount the NFS if an application / user wants to access the specified mountpoint.

What is strange here if you are using automount, you should not use /etc/fstab entries or mount it by hand !

Hi,
Thanks for reply and that is what it bothers me as well. You don't need to have auto mount when you are going to mount it permanently. Since it was configure long time ago by someone who left the company and no one has bothered to ask about it.

I also understand how auto mount works and from configuration i can see that it gets unmounted after 600 sec as specified.

Informed my supervisor and he told me that there was one option that made them always visible which i am not aware of.

Any idea what that option could be ?

Thanks,
P

---------- Post updated at 01:51 PM ---------- Previous update was at 01:46 PM ----------

Quote:

Originally Posted by rbatte1

Can you paste the share configuration (/etc/exports ?) from the server and the mount definitions on the clients (/etc/fstab or any scripts that run to mount them manually)

It would be useful to see if any of the directories are under a filesystem that has not mounted for another reason. Do you have old versions of /etc/fstab available?

Please paste your output in CODE tags.

Robin

Hi Robin,

Thanks for reply. These mount points were working fine until system got rebooted and we dont have a proper reason on first place why it was rebooted. After rebooting only this issue was occurred.

Mount points are logically present but not able to view them when df is used. when tried to manually mount them it says it is already mounted and and busy.

I dont have any older versions of fstab as well.

Here i am looking to find if there is any option that i am not aware of that made them always visible on the client.

Any info would be great.

Thanks,
P

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LEARN ABOUT DEBIAN

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)