Novell BUSINESS CONTINUITY CLUSTERING 1.2.1 - ADMINISTRATION, Руководство администратора, Страница: 99 / 184

Managing a Business Continuity Cluster 99
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11.5 Generating a Cluster Report
You can generate a report for each cluster in the business continuity cluster to list information on a
specific cluster, such as current cluster configuration, cluster nodes, and cluster resources. You can
print or save the report by using your browser.
1 Start your Internet browser and enter the URL for iManager.
The URL is http://
server_ip_address /nps/iManager.html. Replace server_ip_address with the
IP address or DNS name of the server that has iManager and the Identity Manager
preconfigured templates for iManager installed.
2 Specify your username and password, specify the tree where you want to log in, then click
Login .
3
In Roles and Tasks , click Clusters , then click the Cluster Manager link.
4 Specify a cluster name, or browse and select the Cluster object.
5
Click the Run Report button.
11.6 Resolving Business Continuity Cluster
Failures
There are several failure types associated with a business continuity cluster that you should be aware
of. Understanding the failure types and knowing how to respond to each can help you more quickly
recover a cluster. Some of the failure types and responses differ depending on whether you have
implemented storage-based mirroring or host-based mirroring. Promoting or demoting LUNs is
sometimes necessary when responding to certain types of failures.
NOTE: The terms promote and demote are used here in describing the process of changing LUNs to
a state of primary, but your storage vendor documentation might use different terms such as mask
and unmask .
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Section 11.6.1, “Storage-Based Mirroring Failure Types and Responses,” on page 99
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Section 11.6.2, “Host-based Mirroring Failure Types and Responses,” on page 101
11.6.1 Storage-Based Mirroring Failure Types and Responses
Storage-based mirroring failure types and responses are described in the following sections:
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“Primary Cluster Fails but Primary Storage System Does Not” on page 100
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“Primary Cluster and Primary Storage System Both Fail” on page 100
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“Secondary Cluster Fails but Secondary Storage System Does Not” on page 100
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“Secondary Cluster and Secondary Storage System Both Fail” on page 100
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“Primary Storage System Fails and Causes the Primary Cluster to Fail” on page 100
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“Secondary Storage System Fails and Causes the Secondary Cluster to Fail” on page 100
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“Intersite Storage System Connectivity Is Lost” on page 101
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“Intersite LAN Connectivity Is Lost” on page 101