You can use Oracle Solaris Cluster Quorum Server software to configure a machine as a quorum server and then configure the quorum server as your cluster's quorum device. You can use a quorum server instead of, or in addition to, shared disks.
Supported hardware – The supported hardware platforms for a quorum server are the same as for a global-cluster node.
Operating system – Oracle Solaris software requirements for Oracle Solaris Cluster software apply as well to Quorum Server software.
Non-global zones – A quorum server cannot be installed and configured in a non-global zone.
Service to multiple clusters – You can configure a quorum server as a quorum device to more than one cluster.
Mixed hardware and software – You do not have to configure a quorum server on the same hardware and software platform as the cluster or clusters that it provides quorum to. For example, a SPARC based machine that runs the Oracle Solaris 10 OS can be configured as a quorum server for an x64-based cluster that runs the Oracle Solaris 11 OS. See Figure 4, Table 4, Quorum Server Interoperability With Cluster Node Software for Oracle Solaris Cluster version interoperability.
Using a cluster node as a quorum server – You can configure a quorum server on a cluster node to provide quorum for clusters other than the cluster that the node belongs to. However, a quorum server that is configured on a cluster node is not highly available.
Quorum server software must be patched or upgraded before patching or upgrading cluster nodes. Refer to How to Upgrade Quorum Server Software in Oracle Solaris Cluster 4.3 Upgrade Guide.
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a – Solaris Cluster 3.2 Quorum Server Patch 127404-03 (Solaris 9 SPARC), 127405-04 (Oracle Solaris 10 SPARC), or 127406-04 (Oracle Solaris 10 x86) or higher
b – Solaris Cluster 3.2 Core Patch 126105-38 (Solaris 9 SPARC), 126106-38 (Oracle Solaris 10 SPARC), or 126107-38 (Oracle Solaris 10 x86) or higher