optional arguments:¶

-h, --help

Show this help message

-q, --quiet

Be quiet (don't describe what's happening, just do it)

-y, --yes

Answer "yes" to all prompts (use with caution, this is destructive, especially those storage related configurations and stages. The /root/.ssh/id_rsa key will be overwritten unless the option "--no-overwritesshkey" is used)

-n NAME, --name NAME

Set the name of the configured cluster.

-N NODES, --nodes NODES

Additional nodes to add to the created cluster. May include the current node, which will always be the initial cluster node.

-S, --enable-sbd

Enable SBD even if no SBD device is configured (diskless mode)

-w WATCHDOG, --watchdog WATCHDOG

Use the given watchdog device or driver name

--no-overwrite-sshkey

Avoid "/root/.ssh/id_rsa" overwrite if "-y" option is used (False by default)

Network configuration:¶

Options for configuring the network and messaging layer.

-i IF, --interface IF

Bind to IP address on interface IF. Use -i second time for second interface

-u, --unicast

Configure corosync to communicate over unicast (UDP), and not multicast. Default is multicast unless an environment where multicast cannot be used is detected.

-A IP, --admin-ip IP

Configure IP address as an administration virtual IP

-M, --multi-heartbeats

Configure corosync with second heartbeat line

-I, --ipv6

Configure corosync use IPv6

QDevice configuration:¶

QDevice participates in quorum decisions. With the assistance of a third-party arbitrator Qnetd, it provides votes so that a cluster is able to sustain more node failures than standard quorum rules allow. It is recommended for clusters with an even number of nodes and highly recommended for 2 node clusters.

Options for configuring QDevice and QNetd.

--qnetd-hostname HOST

HOST or IP of the QNetd server to be used

--qdevice-port PORT

TCP PORT of QNetd server (default:5403)

--qdevice-algo ALGORITHM

QNetd decision ALGORITHM (ffsplit/lms, default:ffsplit)

--qdevice-tie-breaker TIE_BREAKER

QNetd TIE_BREAKER (lowest/highest/valid_node_id, default:lowest)

--qdevice-tls TLS

Whether using TLS on QDevice/QNetd (on/off/required, default:on)

--qdevice-heuristics COMMAND

COMMAND to run with absolute path. For multiple commands, use ";" to separate (details about heuristics can see man 8 corosync-qdevice)

--qdevice-heuristics-mode MODE

MODE of operation of heuristics (on/sync/off, default:sync)

Storage configuration:¶

Options for configuring shared storage.

-s DEVICE, --sbd-device DEVICE

Block device to use for SBD fencing, use ";" as separator or -s multiple times for multi path (up to 3 devices)

-o DEVICE, --ocfs2-device DEVICE

Block device to use for OCFS2; When using Cluster LVM2 to manage the shared storage, user can specify one or multiple raw disks, use ";" as separator or -o multiple times for multi path (must specify -C option) NOTE: this is a Technical Preview

-C, --cluster-lvm2

Use Cluster LVM2 (only valid together with -o option) NOTE: this is a Technical Preview

-m MOUNT, --mount-point MOUNT

Mount point for OCFS2 device (default is /srv/clusterfs, only valid together with -o option) NOTE: this is a Technical Preview

Stage can be one of:¶

ssh

Create SSH keys for passwordless SSH between cluster nodes

csync2

Configure csync2

corosync

Configure corosync

sbd

Configure SBD (requires -s <dev>)

cluster

Bring the cluster online

ocfs2

Configure OCFS2 (requires -o <dev>) NOTE: this is a Technical Preview

vgfs

Create volume group and filesystem (ocfs2 template only,

requires -o <dev>) NOTE: this stage is an alias of ocfs2 stage

admin

Create administration virtual IP (optional)

qdevice

Configure qdevice and qnetd

Note:¶

- If stage is not specified, the script will run through each stage

in sequence, with prompts for required information.