Hyperconverged Infrastructure Deployment Using GlusterFS Storage

6 Hyperconverged Infrastructure Deployment Using GlusterFS Storage

Note:

If you are deploying a self-hosted engine as hyperconverged infrastructure with GlusterFS storage, you must deploy GlusterFS before you deploy the self-hosted engine or any KVM hosts. For more information about using GlusterFS, including prerequisites, see the Oracle Linux GlusterFS documentation.

Oracle Linux Virtualization Manager is integrated with GlusterFS, an open source scale-out distributed filesystem, to provide a hyperconverged infrastructure (HCI) cluster where both compute and storage are provided from the same hosts. The HCI cluster with Gluster storage uses DAS disks to provide shared volumes and implements a KVM host in each node. The Gluster volumes are used as storage domains in the Manager to store the virtual machine images, and the Manager is run as a self-hosted engine within a virtual machine on these hosts.

For instructions on creating a GlusterFS storage domain, refer to the My Oracle Support (MOS) article How to Create Glusterfs Storage Domain (Doc ID 2679824.1).

Important:

You must deploy GlusterFS before you deploy the self-hosted engine or any KVM hosts. For more information about using GlusterFS, including prerequisites, see the Oracle Linux GlusterFS documentation.

To deploy Oracle Linux Virtualization Manager in a HCI architecture, you need three KVM hosts with local disks. These disks can be combined into a RAID array or used alone as JBOD. All KVM hosts must have the same number of disks and be the same size between hosts. If you want more than three KVM hosts, they must be added in factors of three.

For example, the minimum disk configuration for an HCI architecture is having two hard disks in each KVM host, where the first disk is used to install the operating system and the second disk is used to deploy the Gluster volumes. For example:

    Host 1            Host 2            Host 3

    disk  1 - 250GB   disk  1 - 250GB   disk  1 - 250GB
    disk  2 - 2TB     disk  2 - 2TB     disk  2 - 2TB

    Host 1              Host 2              Host 3

    disk  1 - 250GB     disk  1 - 250GB     disk  1 - 250GB
    disks 2-8 - 4TB     disks 2-8 - 4TB     disks 2-8 - 4TB

For instructions on creating a GlusterFS storage domain, refer to the My Oracle Support (MOS) article How to Create Glusterfs Storage Domain (Doc ID 2679824.1).