Appendix C. Example deployment using 3 hyperconverged nodes
This section contains example files for a 3 node deployment of Red Hat Hyperconverged Infrastructure for Virtualization.
These example files have the following assumptions:
All nodes have the same disks and are configured identically.
-
Each node has 5 devices: a boot device (
sda
), three storage devices (sdb
,sdc
, andsdd
) and a fast cache device (sde
). -
The
engine
volume uses thesdb
device on all nodes. This device is thickly provisioned. -
The
data
volume uses thesdc
device on all nodes. This device is thinly provisioned and has a fast cache devicesde
attached to improve performance. -
The
vmstore
volume uses thesdd
device on all nodes. This device uses multipath configuration, is thinly provisioned, and has deduplication and compression enabled.
-
Each node has 5 devices: a boot device (
- This cluster uses IPv6 networking.
Example he_gluster_vars.json
file
{ "he_appliance_password": "mybadappliancepassword", "he_admin_password": "mybadadminpassword", "he_domain_type": "glusterfs", "he_fqdn": "engine.example.com", "he_vm_mac_addr": "00:01:02:03:04:05", "he_default_gateway": "gateway.example.com", "he_mgmt_network": "ovirtmgmt", "he_storage_domain_name": "HostedEngine", "he_storage_domain_path": "/engine", "he_storage_domain_addr": "host1-backend.example.com", "he_mount_options": "backup-volfile-servers=host2-backend.example.com:host3-backend.example.com", "he_bridge_if": "interface name for bridge creation", "he_enable_hc_gluster_service": true, "he_mem_size_MB": "16384", "he_cluster": "Default" }
Example gluster_inventory.yml
file
hc_nodes: hosts: host1-backend.example.com: host2-backend.example.com: host3-backend.example.com: vars: blacklist_mpath_devices: - sdb - sdc gluster_infra_vdo: - { name: 'vdo_sdd', device: '/dev/sdd', logicalsize: '5000G', emulate512: 'off', slabsize: '32G', blockmapcachesize: '128M', writepolicy: 'auto' } gluster_infra_volume_groups: - vgname: gluster_vg_sdb pvname: /dev/sdb - vgname: gluster_vg_sdc pvname: /dev/sdc - vgname: gluster_vg_sdd pvname: /dev/mapper/vdo_sdd gluster_infra_mount_devices: - path: /gluster_bricks/engine lvname: gluster_lv_engine vgname: gluster_vg_sdb - path: /gluster_bricks/data lvname: gluster_lv_data vgname: gluster_vg_sdc - path: /gluster_bricks/vmstore lvname: gluster_lv_vmstore vgname: gluster_vg_sdd gluster_infra_thinpools: - {vgname: 'gluster_vg_sdc', thinpoolname: 'gluster_thinpool_sdc', thinpoolsize: '500G', poolmetadatasize: '16G'} - {vgname: 'gluster_vg_sdd', thinpoolname: 'gluster_thinpool_sdd', thinpoolsize: '500G', poolmetadatasize: '16G'} gluster_infra_cache_vars: - vgname: gluster_vg_sdb cachedisk: /dev/sdb,/dev/sde cachelvname: cachelv_thinpool_sdb cachethinpoolname: gluster_thinpool_sdb cachelvsize: '250G' cachemode: writethrough gluster_infra_thick_lvs: - vgname: gluster_vg_sdb lvname: gluster_lv_engine size: 100G gluster_infra_lv_logicalvols: - vgname: gluster_vg_sdc thinpool: gluster_thinpool_sdc lvname: gluster_lv_data lvsize: 200G - vgname: gluster_vg_sdd thinpool: gluster_thinpool_sdd lvname: gluster_lv_vmstore lvsize: 200G gluster_features_enable_ipv6: true cluster_nodes: - host1-backend.example.com - host2-backend.example.com - host3-backend.example.com gluster_features_hci_cluster: "{{ cluster_nodes }}" gluster_features_hci_volumes: - volname: engine brick: /gluster_bricks/engine/engine arbiter: 0 - volname: data brick: /gluster_bricks/data/data arbiter: 0 - volname: vmstore brick: /gluster_bricks/vmstore/vmstore arbiter: 0 gluster_infra_fw_ports: - 2049/tcp - 54321/tcp - 5900-6923/tcp - 16514/tcp - 5666/tcp - 16514/tcp gluster_infra_fw_permanent: true gluster_infra_fw_state: enabled gluster_infra_fw_zone: public gluster_infra_fw_services: - glusterfs gluster_infra_disktype: RAID6 gluster_infra_diskcount: 10 gluster_infra_stripe_unit_size: 256 gluster_features_force_varlogsizecheck: false gluster_set_selinux_labels: true gluster: hosts: host2-frontend.example.com: host3-frontend.example.com: vars: storage_domains: - {"name":"data","host":"host1-frontend.example.com","address":"host1-backend.example.com","path":"/data","function":"data","mount_options":"backup-volfile-servers=host2-backend.example.com:host3-backend.example.com,xlator-option=transport.address-family=inet6"} - {"name":"vmstore","host":"host1-frontend.example.com","address":"host1-backend.example.com","path":"/vmstore","function":"data","mount_options":"backup-volfile-servers=host2-backend.example.com:host3-backend.example.com,xlator-option=transport.address-family=inet6"}