Mostly following the guide found here:

https://wiki.hpdd.intel.com/display/PUB/Create+and+Mount+a+Lustre+Filesystem

 * Downgrade kernel if needed:
   * `yum remove kernel-2.6.32-<whatever>*`
 * Enable EPEL repo:
   * `yum install epel-release`
 * Enable ZFS on Linux repo:
   * `yum localinstall --nogpgcheck http://archive.zfsonlinux.org/epel/zfs-release.el6.noarch.rpm`
 * Enable lustre repos:

```bash
[lustre-server]
name=CentOS-$releasever - Lustre
baseurl=https://downloads.hpdd.intel.com/public/lustre/latest-feature-release/el6/server/
gpgcheck=0

[e2fsprogs]
name=CentOS-$releasever - Ldiskfs
baseurl=https://downloads.hpdd.intel.com/public/e2fsprogs/latest/el6/RPMS
gpgcheck=0

[lustre-client]
name=CentOS-$releasever - Lustre
baseurl=https://downloads.hpdd.intel.com/public/lustre/latest-feature-release/el6/client/
gpgcheck=0
```

 * On all of the MDS, OSS and client machines:
   * Upgrade e2fsprogs: `yum upgrade e2fsprogs`
   * Install the *lustre-tests* package: `yum install lustre-tests`
   * Create the following file **/etc/modprobe.d/lnet.conf**:
     * `options lnet networks=tcp0(eth1)`
     * Adjust the networks parameter as required for the type of
      interconnect and network interface to be used.
 * On the MGS and OSS only, create the file
    `/etc/sysconfig/modules/lnet.modules` to auto-load the lnet kernel
    module on boot:

```bash
#!/bin/sh

if [ ! -c /dev/lnet ] ; then
    exec /sbin/modprobe lnet >/dev/null 2>&1
fi
```

 * On the MGS/MDT/MDS:
   * Intialise a disk or partition to use for lustre.
   * Create a lustre MDT:
     * `mkfs.lustre --fsname=whatevs --mgs --mdt --index=0 /dev/sdX`
   * Create a mount point and mount the lustre FS:
     * `mkdir /mnt/mdt && mount -t lustre /dev/sdX /mnt/mdt`
 * On the OST/OSS:
   * Intialise a disk or partition to use for lustre.
   * Create a lustre OST:
     * `mkfs.lustre --ost --fsname=whatevs --mgsnode=192.168.N.N@tcp0 --index=0 /dev/sdX`
     * Adjust the `--mgsnode` parameter for the address and protocol
        used for the MGS.
   * Create a mount point and mount the lustre FS:
     * `mkdir /ostoss_mount && mount -t lustre /dev/sdX /ostoss_mount`
 * On the client:
   * Load the lustre kernel module: `modprobe lustre`.
   * Create the file `/etc/sysconfig/modules/lustre.modules` to load
    the lustre module on boot:

```bash
#!/bin/sh

/sbin/lsmod | /bin/grep lustre 1>/dev/null 2>&1
if [ ! $? ] ; then
   /sbin/modprobe lustre >/dev/null 2>&1
fi
```

  * Create a mount point: `mkdir /mnt/lustre`.
    * Mount the lustre FS:
      * `mount -t lustre 192.168.N.N@tcp0:/whatevs /mnt/lustre`