PNFS Setup Instructions
From Linux NFS
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<b>Step 1: Setup NFSv4 servers</b> | <b>Step 1: Setup NFSv4 servers</b> | ||
<UL> | <UL> | ||
| - | <li>Create /etc/exports file on all DS's and the MDS. | + | <li>Create <tt>/etc/exports</tt> file on all DS's and the MDS. |
<pre> | <pre> | ||
/export *(rw,sync,fsid=0,insecure,no_subtree_check) | /export *(rw,sync,fsid=0,insecure,no_subtree_check) | ||
| Line 14: | Line 14: | ||
</pre> | </pre> | ||
Until support for the "pnfs" export option is publicly released, | Until support for the "pnfs" export option is publicly released, | ||
| - | please build and install exportfs from: | + | please build and install <tt>exportfs</tt>, <tt>rpc.mountd</tt>, and optionally, <tt>nfsstat</tt> from: |
<pre> | <pre> | ||
git://linux-nfs.org/~bhalevy/pnfs-nfs-utils.git | git://linux-nfs.org/~bhalevy/pnfs-nfs-utils.git | ||
| + | |||
| + | To install just the required binaries: | ||
| + | cp utils/exportfs/exportfs /usr/sbin/exportfs | ||
| + | cp utils/mountd/mountd /usr/sbin/rpc.mountd | ||
| + | cp utils/nfsstat/nfsstat /usr/sbin/nfsstat | ||
</pre> | </pre> | ||
</li> | </li> | ||
| - | <li> | + | <li>If the nfs service requires starting then run the following commands on the metadata server<p> |
<pre> | <pre> | ||
| - | + | /etc/init.d/nfs restart | |
| - | + | ||
| - | + | ||
or | or | ||
| - | + | rpc.mountd | |
| + | rpc.nfsd 8 | ||
| + | exportfs -r | ||
</pre></li> | </pre></li> | ||
</UL> | </UL> | ||
| - | <b>Step 2: Load | + | <b>Step 2: Load Layout driver on clients</b> |
<pre> | <pre> | ||
modprobe nfslayoutdriver | modprobe nfslayoutdriver | ||
| + | or | ||
| + | modprobe objlayoutdriver | ||
| + | or | ||
| + | modprobe blocklayoutdriver | ||
</pre> | </pre> | ||
<b>Step 3: Mount pNFS file system.</b> | <b>Step 3: Mount pNFS file system.</b> | ||
Revision as of 06:38, 11 November 2009
File Layout
Accessing a storage system with pNFS
Step 0: Get pNFS kernel from git tree and install on all involved servers.
Step 1: Setup NFSv4 servers
- Create /etc/exports file on all DS's and the MDS.
/export *(rw,sync,fsid=0,insecure,no_subtree_check)
Note: starting with 2.6.32-rc1, the "pnfs" export option is required.
/export *(rw,sync,fsid=0,insecure,no_subtree_check,pnfs)
Until support for the "pnfs" export option is publicly released, please build and install exportfs, rpc.mountd, and optionally, nfsstat from:
git://linux-nfs.org/~bhalevy/pnfs-nfs-utils.git To install just the required binaries: cp utils/exportfs/exportfs /usr/sbin/exportfs cp utils/mountd/mountd /usr/sbin/rpc.mountd cp utils/nfsstat/nfsstat /usr/sbin/nfsstat
- If the nfs service requires starting then run the following commands on the metadata server<p>
/etc/init.d/nfs restart or rpc.mountd rpc.nfsd 8 exportfs -r
Step 2: Load Layout driver on clients
modprobe nfslayoutdriver or modprobe objlayoutdriver or modprobe blocklayoutdriver
Step 3: Mount pNFS file system.
- On pNFS client:
mount -t nfs4 -o minorversion=1 <mds_server>:/ /mnt/pnfs Note: Each file system has its own way of picking the MDS. Ensure you mount only the MDS and not a DS.
Debugging Help
- NFS debugging:
echo 32767 > /proc/sys/sunrpc/nfsd_debug echo 32767 > /proc/sys/sunrpc/nfs_debug
