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| == Network == 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 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 |
Configure the [[GlusterFS Server|server]], then the [[GlusterFS Client|client]]. |
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 4 GlusterFS servers.