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Full Discussion: NFS to HEAVY TRAFFIC
Operating Systems Linux Red Hat NFS to HEAVY TRAFFIC Post 302572851 by ygemici on Friday 11th of November 2011 09:20:45 AM
Old 11-11-2011
i assume , your nfsserver is OK ,at the now try some issues on the nfs client

* check traffic between nfsserver and your client
Code:
# tracepath nfsserver

or try nfswatch
Code:
# yum install nfswatch && nfswatch -dst nfsserver -src nfsclient

* try to boot with newer kernel and check your messages
Code:
# rpm -ivh kernel-newer.rpm && tail -f /var/log/messages

* check the nfsmount parameters(tmeout and rsize/wsize) and if you still problem then change your settings according to Optimizing NFS Performance
Code:
# nfsstat -m

regards
ygemici
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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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