Ubuntu 10.04 (Lucid) x64 GlusterFS image notes


Ubuntu 10.04 (Lucid) x64 GlusterFS image notes

For more details on operating system please read the Ubuntu 10.04 (Lucid) x64 image instruction.

Linux with GlusterFS installed

GlusterFS is a general purpose distributed file system for scalable storage. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system..

The service version (shown in native reported format ) is:

# glusterfs --version
glusterfs 3.0.2 built on Mar 23 2010 00:24:16
Repository revision: v3.0.2
For a minimal cluster you should have as least two Virtual Servers installed.

The following example let configure minimal cluster (based on two VPSes) with RAID 1 (the same files on each VPS) volumes.

1. Add a special hostname for each VPS to /etc/hosts on both VPSes. Let’s call them gluster1 and gluster2

# vim /etc/hosts
VPS1_IP gluster1
VPS2_IP gluster2

2. Make the directories for the GlusterFS volumes on each VPS:

mkdir -p /export/store1

3. We’re ready to make the configuration files for our storage volumes. This only needs to be run on the first VPS:

# glusterfs-volgen --name store1 --raid 1 gluster1:/export/store1 gluster2:/export/store1
Generating server volfiles.. for server 'gluster2'
Generating server volfiles.. for server 'gluster1'
Generating client volfiles.. for transport 'tcp'

4. Once that’s done, you’ll have four new files:
* booster.fstab - you won’t need this file
* gluster1-store1-export.vol - server-side configuration file for the first VPS
* gluster2-store1-export.vol - server-side configuration file for the second VPS
* store1-tcp.vol - client side configuration file for GlusterFS clients

5. Copy the gluster1-store1-export.vol file to /etc/glusterfs/glusterfsd.vol on your first VPS

# cp ./gluster1-store1-export.vol /etc/glusterfs/glusterfsd.vol

6. Copy gluster2-store1-export.vol to /etc/glusterfs/glusterfsd.vol on your second VPS

# scp ./gluster2-store1-export.vol root@gluster2:/etc/glusterfs/glusterfsd.vol

Be ready to give gluster2 (VPS2 box) root user password.

7. Copy the store1-tcp.vol should be copied to /etc/glusterfs/glusterfs.vol on both VPSes.

# cp ./store1-tcp.vol /etc/glusterfs/glusterfs.vol
# scp ./store1-tcp.vol root@gluster2:/etc/glusterfs/glusterfs.vol

8. Restart the GlusterFS servers on each VPS:

service glusterfs-server restart

and configure it to start on VPS boot time

chkconfig glusterfs-server on

9. You can now mount the GlusterFS volume on both VPSes:

# mkdir -p /mnt/glusterfs
# glusterfs /mnt/glusterfs/

10. Now you can save any data into /mnt/glusterfs on the first VPS, and it will be available on the second (and vice versa)

Obviously, this is a very simple and basic implementation of GlusterFS. You can increase performance by making dedicated VPSes just for serving data and you can adjust the default performance options when you mount a GlusterFS volume.

Please find more at GlusterFS Technical FAQ and the GlusterFS User Guide.