Commvault uses the following components to support data protection and recovery operations:
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CommServe host: Provides management, status, and reporting for protection operations. The CommServe user interface includes the CommCell Console and CommCell Browser.
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Virtual Server Agent (VSA): The Virtual Server Agent can be installed on one or more machines, so that those machines can serve as VSA proxies. A VSA proxy manages backup and restore operations for guest VMs in your environment, eliminating the need to install agents on guest VMs.
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MediaAgents: MediaAgents can reside in VMware Cloud Director virtual machines or on servers in the physical environment.
You can deploy Commvault components on a single server or on different physical or virtual machines.