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Full Discussion: NFS mount issues
Operating Systems Linux Red Hat NFS mount issues Post 302650519 by sarav on Sunday 3rd of June 2012 12:18:39 PM
Old 06-03-2012
NFS mount issues

Hi Experts,

I have been using Linux (Redhat server 5.6) as a NFS server and it is mounted to 4 linux (SUSE) servers for storing the db logs. I added an entry in fstab in all my 4 clients to make sure the mount is available all the time. but unfortunately the mount is not showing in servers after a day or 2. but I could see an entry in /etc/mtab saying that the mount is available but when I try df command it hungs.

I tried all most all the options like, -o nfsvers=3, tcp..... but still nothing works.

mount command output:
Code:
securityfs on /sys/kernel/security type securityfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
proc on /var/lib/ntp/proc type proc (rw)
t07lap00025.test.com:/dbnfs on /nas/dbnfs type nfs (rw,tcp,addr=xxx.xxx.xx.xxx)

mtab entry
Code:
securityfs /sys/kernel/security securityfs rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
proc /var/lib/ntp/proc proc rw 0 0
t07lap00025.test.com:/dbnfs /nas/dbnfs nfs rw,tcp,addr=xxx.xxx.xx.xxx 0 0

df command output
Code:
/dev/mapper/appsvg00-tibcolv02
                       5160576   1511988   3386444  31% /var/tibco

it hungs and not displaying /nas/dbnfs

when I mount manually using mount command it mounts but it is not displayed in df and hungs.
Any help to resolve this is highly appreciated. Smilie

Last edited by Scrutinizer; 06-11-2012 at 04:10 PM.. Reason: code tags
 

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

NAME
mount.nfs, mount.nfs4 - mount a Network File System SYNOPSIS
mount.nfs remotetarget dir [-rvVwfnsh ] [-o options] DESCRIPTION
mount.nfs is a part of nfs(5) utilities package, which provides NFS client functionality. mount.nfs is meant to be used by the mount(8) command for mounting NFS shares. This subcommand, however, can also be used as a standalone command with limited functionality. remotetarget is a server share usually in the form of servername:/path/to/share. dir is the directory on which the file system is to be mounted. Under Linux 2.6.32 and later kernel versions, mount.nfs can mount all NFS file system versions. Under earlier Linux kernel versions, mount.nfs4 must be used for mounting NFSv4 file systems while mount.nfs must be used for NFSv3 and v2. OPTIONS
-r Mount file system readonly. -v Be verbose. -V Print version. -w Mount file system read-write. -f Fake mount. Don't actually call the mount system call. -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 making an entry. -s Tolerate sloppy mount options rather than fail. -h Print help message. nfsoptions Refer to nfs(5) or mount(8) manual pages. NOTE
For further information please refer nfs(5) and mount(8) manual pages. FILES
/etc/fstab file system table /etc/mtab table of mounted file systems SEE ALSO
nfs(5), mount(8), AUTHOR
Amit Gud <agud@redhat.com> 5 Jun 2006 MOUNT.NFS(8)
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