The server is the primary component for storage activity in IBM Tivoli® Storage Manager. In case of server failure, Tivoli Storage Manager clients may not be able to perform storage operations. These High availability policies ensure that clients remain seamlessly connected and can perform operations without interruption.
With current business demands and solution needs, High Availability has become an important feature for any application or solution service. This includes critical storage management and access to information that has been backed-up or archived. This package provides a set of scripts, policies and instructions that can be used with IBM Tivoli® System Automation for Multiplatforms to facilitate the high availability needs of the IBM Tivoli® Storage Manager servers.
The server is the primary component for storage activity in IBM Tivoli® Storage Manager. In case of server failure, Storage Manager clients may not be able to perform storage operations like archive/retrieve or backup/restore. These High availability policies ensure that clients remain seamlessly connected and can perform operations without interruption.
Normally in case of a Tivoli Storage Manager Server failure, attached Storage Manager Clients would not be able to complete storage operations storing information in logs. When the server becomes operational, it checks the recovery log resuming any failed tasks logged during the server failure. Though the server takes care of data integrity and consistency for all recovered transactions, this poses a concern of servers not being available. This can be resolved by making the Tivoli Storage Manager server environment highly available with the help of using standby Storage Manager servers running on a different machine than the clients can connect to upon a server failure.
Using Tivoli System Automation for Multiplatform and the policies provided here, the Tivoli Storage Manager server can be made highly available without the need for manual intervention. These policies use a virtual IP address for the server to which the Storage Manager clients can connect in lieu of the physical IP addresses of the server machines. Upon a server failure or service interrupt, Tivoli System Automation for Multiplatforms can then re-route communication to another currently active Tivoli Storage Manager server. Tivoli System Automation for Multiplatforms also automates sharing the server instance data and recovery log data with active Tivoli Storage Manager servers to ensure that data integrity and consistency are maintained.
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These policies require:
- IBM Tivoli System Automation for Multiplatform v3.1 FP5 or 3.2.
- IBM Tivoli Storage Manager needs to be installed on the primary and secondary machines.
- Also the server instance needs to be configured with the necessary parameters and resources.
- The Tivoli Storage Manager client must be configured to use a Virtual IP address to connect to the Tivoli Storage Manager Server.