Sun Cluster 3.1 - 3.2 With Network-Attached Storage Devices Manual for Solaris OS

Requirements, Recommendations, and Restrictions for Network Appliance NAS Devices

This section includes only restrictions and requirements that have a direct impact on the procedures in this chapter. For general support information, contact your Sun service provider.

Requirements for Network Appliance NAS Devices

This section describes the following requirements.

Requirements When Configuring Network Appliance NAS Devices

When you configure a Network Appliance NAS device, you must meet the following requirements.

Requirements When Configuring Network Appliance NAS Devices for Use With Oracle Real Application Clusters

When you configure your Network Appliance NAS device for use with Oracle Real Application Clusters (RAC), you must meet the following requirements.

Requirements When Configuring Network Appliance NAS Devices as Quorum Devices

The administrator has the option of deciding whether to use the Network Appliance NAS device as a quorum device.

When you use a Network Appliance NAS device as a quorum device, you must meet the following requirements.

Recommendations for Network Appliance NAS Devices

It is strongly recommended that you use a Network Appliance clustered filer. Clustered filers provide high availability with respect to the filer data and do not constitute a single point of failure in the cluster.

It is strongly recommended that you use the network time protocol (NTP) to synchronize time on the cluster nodes and the NAS device. Refer to your Network Appliance documentation for instructions about how to configure NTP on the NAS device. Select at least one NTP server for the NAS device that also serves the cluster nodes.

Restrictions for Network Appliance NAS Devices

When configuring a Network Appliance NAS device as a quorum device, you can only add the quorum device when all cluster nodes are operating and communicating with the Network Appliance NAS device.

There is no fencing support for NFS-exported file systems from a NAS device when used in a non-global zone, including nodes of a zone cluster. Fencing support of Network Appliance NAS devices is only provided in global zones.