Ubuntu 14.04
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GlusterFS : Distributed Setting
2014/05/31
 
Install Distributed Filesystem "GlusterFS".
For example, create a distributed volume with 2 servers to be able to use it from GlusterFS Clients. This example shows to use 2 servers but it's possible to use more than 3 servers.
                                     +--------------------+
                            10.0.0.60|                    |
                               +-----+ GlusterFS Server#1 |
+-----------------+            | eth0|                    |
|                 |10.0.0.69   |     +--------------------+
| GlusterFS Clint |------------+
|                 |eth0        |     +--------------------+
+-----------------+            | eth0|                    |
                               +-----+ GlusterFS Server#2 |
                            10.0.0.61|                    |
                                     +--------------------+

[1] Configure the same settings on 2 GlusterFS servers like follows. It is recommended to create a directory for GlusterFS volume on the different partition from the / partition.
root@gfs01:~#
apt-get -y install glusterfs-server
root@gfs01:~#
vi /etc/hosts
# add GlusterFS servers

10.0.0.60       gfs01.srv.world gfs01
10.0.0.61       gfs02.srv.world gfs02

# create a directory for GlusterFS volume

root@gfs01:~#
mkdir /glusterfs/distributed

[2] Work on a server like follows.
root@gfs01:~#
gluster peer probe gfs02
# search the server

peer probe: success
# just found

root@gfs01:~#
gluster peer status
# show status

Number of Peers: 1

Hostname: gfs02
Port: 24007
Uuid: 0575e5a1-651b-49f4-80ee-06cd06f1740b
State: Peer in Cluster (Connected)

# create a volume

root@gfs01:~#
gluster volume create vol_distributed transport tcp \
gfs01:/glusterfs/distributed \
gfs02:/glusterfs/distributed

volume create: vol_distributed: success: please start the volume to access data
root@gfs01:~#
gluster volume start vol_distributed
# start the volume

volume start: vol_distributed: success
root@gfs01:~#
gluster volume info
# show info


Volume Name: vol_distributed
Type: Distribute
Volume ID: e462fde6-2cd8-4ea5-b32e-9cb01089187b
Status: Started
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: gfs01:/glusterfs/distributed
Brick2: gfs02:/glusterfs/distributed
[3] Configure GlusterFS Clients to use GlusterFS volume from GlusterFS servers.
root@gfsclient:~#
apt-get -y install glusterfs-client
# mount the volume on /mnt

root@gfsclient:~#
mount -t glusterfs gfs01.srv.world:/vol_distributed /mnt
# just mounted

root@gfsclient:~#
df -h

Filesystem                           Size  Used Avail Use% Mounted on
/dev/mapper/dlp--vg-root             181G  1.1G  171G   1% /
none                                 4.0K     0  4.0K   0% /sys/fs/cgroup
udev                                 2.0G  4.0K  2.0G   1% /dev
tmpfs                                395M  876K  394M   1% /run
none                                 5.0M     0  5.0M   0% /run/lock
none                                 2.0G     0  2.0G   0% /run/shm
none                                 100M     0  100M   0% /run/user
/dev/sda1                            236M   37M  188M  17% /boot
gfs01.srv.world:/vol_distributed  158G  112M  150G   1% /mnt
 
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