How to Boot a Cluster

This procedure explains how to start a cluster whose nodes have been shut down and are at the ok prompt on SPARC systems or at the Press any key to continue message on the GRUB-based x86 systems.

This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands.

1. Boot each node into cluster mode.

   • On SPARC based systems, do the following:

     ok boot

   • On x86 based systems, do the following:

     When the GRUB menu is displayed, select the appropriate Solaris entry and press Enter. The GRUB menu appears similar to the following:

     GNU GRUB version 0.95 (631K lower / 2095488K upper memory) +-------------------------------------------------------------------------+ | Solaris 10 /sol_10_x86 | | Solaris failsafe | | | +-------------------------------------------------------------------------+ Use the ^ and v keys to select which entry is highlighted. Press enter to boot the selected OS, 'e' to edit the commands before booting, or 'c' for a command-line.

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   Note –

   Cluster nodes must have a working connection to the cluster interconnect to attain cluster membership.

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   For more information about GRUB based booting, see Chapter 11, GRUB Based Booting (Tasks), in System Administration Guide: Basic Administration.

2. Verify that the nodes booted without error and are online.

   The cluster(1CL) status command reports the nodes' status.

   # cluster status -t node

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   Note –

   If a cluster node's /var file system fills up, Sun Cluster might not be able to restart on that node. If this problem arises, see How to Repair a Full /var File System.

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Example 3–3 SPARC: Booting a Cluster

The following example shows the console output when node phys-schost-1 is booted into the cluster. Similar messages appear on the consoles of the other nodes in the cluster.

ok boot
Rebooting with command: boot 
...
Hostname: phys-schost-1
Booting as part of a cluster
NOTICE: Node phys-schost-1 with votecount = 1 added.
NOTICE: Node phys-schost-2 with votecount = 1 added.
NOTICE: Node phys-schost-3 with votecount = 1 added.
...
NOTICE: Node phys-schost-1: attempting to join cluster
...
NOTICE: Node phys-schost-2 (incarnation # 937690106) has become reachable.
NOTICE: Node phys-schost-3 (incarnation # 937690290) has become reachable.
NOTICE: cluster has reached quorum.
NOTICE: node phys-schost-1 is up; new incarnation number = 937846227.
NOTICE: node phys-schost-2 is up; new incarnation number = 937690106.
NOTICE: node phys-schost-3 is up; new incarnation number = 937690290.
NOTICE: Cluster members: phys-schost-1 phys-schost-2 phys-schost-3.
...