Striping Across Four Storage Nodes With GlusterFS 3.2.x On Ubuntu 12.10 - Page 2

3 Setting Up The GlusterFS Client

On the client, we can install the GlusterFS client as follows:

apt-get install glusterfs-client

Then we create the following directory:

mkdir /mnt/glusterfs

That's it! Now we can mount the GlusterFS filesystem to /mnt/glusterfs with the following command:

mount.glusterfs /mnt/glusterfs

(Instead of you can as well use or or in the above command!)

You should now see the new share in the outputs of...


[email protected]:~# mount
/dev/mapper/server5-root on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
/dev/sda1 on /boot type ext2 (rw) on /mnt/glusterfs type fuse.glusterfs (rw,allow_other,default_permissions,max_read=131072)
[email protected]:~#

... and...

df -h

[email protected]:~# df -h
Filesystem            Size  Used Avail Use% Mounted on
                       29G  1.1G   27G   4% /
udev                  238M  4.0K  238M   1% /dev
tmpfs                  99M  212K   99M   1% /run
none                  5.0M     0  5.0M   0% /run/lock
none                  247M     0  247M   0% /run/shm
/dev/sda1             228M   24M  193M  11% /boot
                      116G  4.2G  106G   4% /mnt/glusterfs
[email protected]:~#

Instead of mounting the GlusterFS share manually on the client, you could modify /etc/fstab so that the share gets mounted automatically when the client boots.

Open /etc/fstab and append the following line:

vi /etc/fstab

[...] /mnt/glusterfs glusterfs defaults,_netdev 0 0

(Again, instead of you can as well use or or!)

To test if your modified /etc/fstab is working, reboot the client:


After the reboot, you should find the share in the outputs of...

df -h

... and...



4 Testing

Now let's create a big test file on the GlusterFS share:

dd if=/dev/zero of=/mnt/glusterfs/test.img bs=1024k count=1000

ls -l /mnt/glusterfs

[email protected]:~# ls -l /mnt/glusterfs
total 1024032
-rw-r--r-- 1 root root 1048576000 2012-12-17 17:31 test.img
[email protected]:~#

Now let's check the /data directory on,,, and You should see the test.img file on each node, but with different sizes (due to data striping):

ls -l /data

[email protected]:~# ls -l /data
total 256008
-rw-r--r-- 1 root root 1045430272 2012-12-17 17:31 test.img
[email protected]:~#

ls -l /data

[email protected]:~# ls -l /data
total 256008
-rw-r--r-- 1 root root 1046478848 2012-12-17 17:27 test.img
[email protected]:~#

ls -l /data

[email protected]:~# ls -l /data
total 256008
-rw-r--r-- 1 root root 1047527424 2012-12-17 17:26 test.img
[email protected]:~#

ls -l /data

[email protected]:~# ls -l /data
total 256008
-rw-r--r-- 1 root root 1048576000 2012-12-17 17:30 test.img
[email protected]:~#


Falko Timme

About Falko Timme

Falko Timme is an experienced Linux administrator and founder of Timme Hosting, a leading nginx business hosting company in Germany. He is one of the most active authors on HowtoForge since 2005 and one of the core developers of ISPConfig since 2000. He has also contributed to the O'Reilly book "Linux System Administration".

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By: Falko Timme