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For the sport of it, we will configure 4 GlusterFS servers. For the sport of it, we will configure 3 GlusterFS servers.
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== Network == Configure the [[GlusterFS Server|servers]], then the [[GlusterFS Client|client]]. Once completed continue by setting up [[GlusterFS Encryption|encryption]].
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The GlusterFS servers will have fixed IP-addresses. That is configured in the DHCP servers list of statically assigned IP-adresses by using the Domains MAC address.

 * 192.168.1.40 gluster01
 * 192.168.1.41 gluster02
 * 192.168.1.42 gluster03
 * 192.168.1.43 gluster04

== Disk ==

We will add an additional disk to the system. This disk will be used for file storage.

== Software ==

{{{
apt-get install glusterfs-server
}}}

from gluster01
connect with the other gluster servers
{{{
gluster peer probe gluster02
gluster peer probe gluster03
gluster peer probe gluster04
}}}

check server status

{{{
gluster peer status
Number of Peers: 3

Hostname: gluster02
Uuid: 031573c2-3b1f-4946-bd78-421563249db6
State: Peer in Cluster (Connected)

Hostname: gluster03
Uuid: ff5cec1c-6d7f-4db7-8676-08deff06b4d0
State: Peer in Cluster (Connected)

Hostname: gluster04
Uuid: 65fc398a-52e9-4292-9bbb-884becfbf5d6
State: Peer in Cluster (Connected)
}}}

on the kvm host

add a 16GiB harddisk for each of the servers
{{{
lvcreate --size 16G --name kvm_gluster01_vdb vg2
lvcreate --size 16G --name kvm_gluster02_vdb vg2
lvcreate --size 16G --name kvm_gluster03_vdb vg2
lvcreate --size 16G --name kvm_gluster04_vdb vg2
}}}

hotadd those disks
{{{
virsh attach-disk gluster01 --source /dev/vg2/kvm_gluster01_vdb --target vdb
virsh attach-disk gluster02 --source /dev/vg2/kvm_gluster02_vdb --target vdb
virsh attach-disk gluster03 --source /dev/vg2/kvm_gluster03_vdb --target vdb
virsh attach-disk gluster04 --source /dev/vg2/kvm_gluster04_vdb --target vdb
}}}

in the guest

create one large partition on vdb with partition type linux lvm

set up a new physical volume and volume group
{{{
pvcreate /dev/vdb1
vgcreate vg2 /dev/vdb1
}}}

create the volumes
{{{
lvcreate --size 4G --name gluster_www vg2
lvcreate --size 4G --name gluster_mail vg2
}}}
create the mountpoints
{{{
mkdir /srv/mail
mkdir /srv/www
}}}
format the volumes
{{{
mkfs.btrfs /dev/vg2/gluster_www
mkfs.btrfs /dev/vg2/gluster_mail
}}}
add the volumes to /etc/fstab
{{{
/dev/vg2/gluster_www /srv/www btrfs defaults 0 0
/dev/vg2/gluster_mail /srv/mail btrfs defaults 0 0
}}}

create the gluster volume. the force option is needed because we are creating the volume on a mountpoint.
{{{
gluster volume create www replica 4 transport tcp gluster01:/srv/www gluster02:/srv/www gluster03:/srv/www gluster04:/srv/www force
}}}
If you only want to run 2 GlusterFS servers then setup [[GlusterFS Server with Arbiter|servers with arbiter]] and [[GlusterFS Client with Arbiter|client with arbiter]] instead.

GlusterFS

GlusterFS is a distributed filesystem. It has built in redundancy, so it is possible to run two servers which automatically replicate files between the servers. If one server goes down, the other just takes over. Once it comes up again, files are automatically replicated. Here we will use GlusterFS as a redundant network mounted file storage.

For the sport of it, we will configure 3 GlusterFS servers.

Configure the servers, then the client. Once completed continue by setting up encryption.

If you only want to run 2 GlusterFS servers then setup servers with arbiter and client with arbiter instead.

None: GlusterFS (last edited 2021-03-26 21:17:29 by Kristian Kallenberg)