Installation and User's Guide - Services and Support

IBM Confidentialspecified in the buffers and buffersize parameters on the command line interface.For more information, see Chapter 5, “Using the Command Line Interface,” onpage 63.LANFreeRunning Data Protection for Exchange in a LAN free environment allows data tobe sent directly to storage devices. As a result, data bypasses potential networkcongestion. However, you must be properly equipped to operate in a LAN freeenvironment. The Tivoli Storage Manager Managed System for SAN Storage AgentUser’s Guide provides detailed information about setting up a LAN Freeenvironment.In addition to specific LAN free requirements, you must specify the enablelanfreeoption for Data Protection for Exchange to activate this LAN free feature.v For Legacy backups, specify enablelanfree yes in the Data Protection forExchange options file.v For VSS Backups, specify enablelanfree yes in the backup-archive client optionsfile.Microsoft Cluster Server (MSCS) SupportData Protection for Exchange supports Exchange Servers running in MSCSconfigurations. The list below provides information you should consider whenrunning Data Protection for Exchange in an MSCS environment.Note: References to the Exchange Server in this section pertain to the virtualExchange Server name in an MSCS environment.v Data Protection for Exchange must be installed on both nodes of the cluster. Inaddition, when installing Data Protection for Exchange, it must be installed on adisk local to each node (not a shared cluster disk).v Use identical configurations in the Tivoli Storage Manager options file whenconfiguring Data Protection for Exchange on each node of the cluster. You mustspecify clusternode yes in the Data Protection for Exchange options file.v When using the Tivoli Storage Manager scheduler for automating backups, youmust install the scheduler service on both nodes of the cluster to enable failoversupport. See Chapter 6, “Using the Tivoli Storage Manager scheduler,” on page115 for more information.v The Tivoli Storage Manager server treats backups as coming from a single server(the virtual Exchange server) regardless of the cluster node on which the backupwas performed.v When running in an MSCS environment, Data Protection for Exchange must beinvoked from the command line with the /excserver parameter. For example, ifthe Exchange virtual server name on the Microsoft Cluster is excvs1, the GUIinvocation istdpexc /excserver=exc1and an example command line interface invocation istdpexcc backup "First Storage Group" full /excserver=excvs1Chapter 1. Data Protection for Exchange Overview 21