[Ocfs2-users] bug resolve yet for export OCFS2 volume to NFS client ?

Thomas Lau thomaslau at esun.com
Tue Mar 22 18:13:42 PDT 2011


is it limited to NFSv3 or NFSv4 or both NFS?

out of topic question, how could I disable READDIRPLUS ?
should I disable it on server side or NFS client side?


----- Original Message -----
From: "Sunil Mushran" <sunil.mushran at oracle.com>
To: "Thomas Lau" <thomaslau at esun.com>
Cc: ocfs2-users at oss.oracle.com
Sent: Wednesday, March 23, 2011 3:55:45 AM
Subject: Re: [Ocfs2-users] bug resolve yet for export OCFS2 volume to NFS client ?

On 03/21/2011 11:52 PM, Thomas Lau wrote:
> I found this from ocfs1.4 document:
> g) NFS
> OCFS2 volumes can be exported as NFS volumes. This support is limited to
> NFS version 3, which translates to Linux kernel version 2.4 or later.
> Users must mount the NFS volumes on the clients using the nordirplus
> mount option. This disables the READDIRPLUS RPC call to workaround a bug
> in NFSD, detailed in the following link:
> http://oss.oracle.com/pipermail/ocfs2-announce/2008-June/000025.html
> Users running NFS version 2 can export the volume after having disabled
> subtree checking (mount option no_subtree_check). Be warned, disabling
> the check has security implications (documented in the exports(5) man
> page) that users must evaluate on their own.
>
> is it being fixed with centos 5.3 (2.6.18-164.11.1.el5)?
>
> anything I need to aware for exporting OCFS2 volume via NFS?

This is a NFS bug. It has since been fixed in mainline. Kernels
based on 2.6.32+ should be ok.



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