Cisco MDS 9000 Family Storage Media Encryption Configuration Guide - Release 4.x (OL-18091-01, February 2009)

Send documentation comments to [e-mail]
4-30
Cisco MDS 9000 Family Storage Media Encryption Configuration Guide
OL-18091-01, Cisco MDS NX-OS Release 4.x
Chapter 4 Cisco SME Cluster Management
Cluster Quorum and Master Switch Election Overview
Step 4 Select Interfaces to view cluster interface information.
Step 5 Select Hosts to view the information about the hosts in the cluster.
Cluster Quorum and Master Switch Election Overview
This section describes the Cisco SME cluster quorum and the process for electing the master switch in
a cluster. The section includes the following topics:
• Cluster Quorum, page 4-31
• Master Switch Election, page 4-31
In this section, the term switch is used to describe a Cisco MDS 9000 Family switch that is part of a
Cisco SME cluster. In addition, the following terms are used in this section.
Node ID
Every switch in a cluster has a node ID. Cisco SME assigns a node ID to every new switch as it is added
to the cluster. The switch where the cluster is created is assigned the node ID of 1. This is the master
switch. When a new switch is added to the cluster, it is assigned the next available higher node ID. For
example, when a second switch is added to the cluster it gets the node ID of 2 and the third switch gets
the node ID of 3, and so on.
Cluster View
The cluster view is the set of switches that are part of the operational cluster.