HP StorageWorks 4000s NAS 4000s and 9000s Installation Guide - Page 43

Template date: 09/2003 DRAFT Note: On occasion the analysis phase of the cluster setup will fail. By selecting the advance button on this screen, minimal checks can be selected. In some cases, this will allow the analyzer to pass the cluster checks. 8. The next screen will analyze the configuration to determine the cluster configuration. Potential configuration errors will be displayed. Fix any potential errors and select Re-analyze. Select Next to continue. 9. In the Add Nodes Wizard window, enter the password for the cluster account and select Next to continue. 10. The next screen will display a proposed cluster configuration summary. Confirm that all settings are correct and select Next to join the cluster. 11. Select Next and then Finish to complete the cluster wizard. 12. After the node has successfully joined the cluster, present all additional storage LUNS to the node. Please refer to the Cluster Storage Guide located in the Cluster Tab for additional information on adding and configuring additional physical disk resources. 13. Select Cluster > Cluster Installation Guide and run the update by selecting the Software Cluster Updates located at the bottom of the guide. Geographically dispersed clusters Cluster nodes can be geographically dispersed to provide an additional layer of fault tolerance. Geographically dispersed clusters are also referred to as stretched clusters The following rule must be followed with geographically dispersed clusters: ■ A VLAN connection with latency of 500 milliseconds or less ensures that cluster consistency can be maintained. If the VLAN latency is over 500 milliseconds, the cluster consistency cannot be easily maintained. ■ All nodes must be on the same subnet. NAS 4000s and 9000s Installation Guide 43 HP Restricted