openstack/openstack-manuals
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Add docs on pNFS support in Cinder NFS drivers

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This change adds the documentation for the changes made in Brick to
use NFS v4.1 and parallel NFS (pNFS), that will be used by Cinder
when mounting NFS shares using the base NFS driver (or potentially
other drivers that are derived from the base driver).

Change-Id: I4932c0f43714288ebbb43911258d2c0a4c41972c
Implements: blueprint pnfs
This commit is contained in:
Bob Callaway 2014-02-25 08:55:01 -05:00
parent 57c4cafa78
commit 1b22ed456d
1 changed files with 18 additions and 0 deletions
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18
doc/config-reference/block-storage/drivers/nfs-volume-driver.xml
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@ -32,6 +32,24 @@
the NFS driver.</para>
<xi:include
href="../../../common/tables/cinder-storage_nfs.xml"/>
<note>
<para>As of the Icehouse release, the NFS driver (and other
drivers based off it) will attempt to mount shares
using version 4.1 of the NFS protocol (including pNFS). If the
mount attempt is unsuccessful due to a lack of client or
server support, a subsequent mount attempt that requests the
default behavior of the <command>mount.nfs</command> command
will be performed. On most distributions, the default behavior
is to attempt mounting first with NFS v4.0, then silently fall
back to NFS v3.0 if necessary. If the
<option>nfs_mount_options</option> configuration option
contains a request for a specific version of NFS to be used,
or if specific options are specified in the shares
configuration file specified by the
<option>nfs_shares_config</option> configuration option, the
mount will be attempted as requested with no subsequent
attempts.</para>
</note>
</section>
<section xml:id="nfs-driver-howto">
<title>How to use the NFS driver</title>