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Full Discussion: NFS writing so slow
Operating Systems Linux Red Hat NFS writing so slow Post 302330333 by hiepng on Tuesday 30th of June 2009 11:38:00 PM
Old 07-01-2009
NFS writing so slow

Hi, I facing an NFS problem. I have machine1, which has diskA and diskB, and machine2, both are Mandriva 2009 Linux.

When I am on machine2 and NFS mount both diskA and diskB of machine1. Writing to diskA is very fast, but writing to diskB is very slow. I tried different mount rsize and wsize options, but it is still very slow on diskB.

I test with sftp to diskB, it is fast. So I think it is the NFS problem, but I could not figure it out how to fix this. Could someone help me with this. Thanks a lot.
 

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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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