Answer» - IRM CommCell: The IRM CommCell, which is based on the Microsoft Windows platform and Microsoft's SQL Server Express, CONSOLIDATES all task management functions, metadata, scheduling, and reporting into a single console. The CommServe application and the MediaAgent are two standard components in this IRM CommCell. These two components share a single operating area known as a CommCell.
- CommServe: CommServe is the master server in charge of CommCell's configuration and operations. It runs on a Windows host server and includes an embedded version of Microsoft SQL Express, which serves as IRM's top-level database. Each CommCell has one CommServe, which must be AVAILABLE to run operations. The CommServe handles only job control and metadata. The MediaAgent specified in the CommCell is used to perform indexing and snapshot management.
- CommServe Database: The CommServe Database is built on Microsoft SQL Express Edition and contains all of the CommServe's history and usage. Information such as work history, client settings, media type, and so on are all maintained in the database, and every item of data that is retrieved, saved, or deleted is recorded in the CommServe database.
- CommCell Console: It is the console that contains all of the CommCell environment's administration features and capabilities in a single pane. The console is java-based and MAY be launched as a local console instance or accessible through a browser from anywhere. In this console, all policies, operations, scheduling, alerting, and reporting are integrated and displayed to users depending on their security permissions and roles.
- MediaAgent: The MediaAgent is a data mover and indexing resource in a data management environment's data movement workflow. This component plays a variety of roles in the creation/mounting of snapshots and the cataloguing of client-relevant material. The MediaAgent will also act as the disc library's media library manager, storing index data. Those indexes are stored in the Archive file format, so they can't be mounted or used directly; instead, you'll need to do a restore to get a native recovery copy of the data.
- IRM Clients: In IRM, clients are servers and systems that use snapshot integration with production storage arrays. Each server will have a base File System iDataAgent installed to facilitate essential connectivity with the CommServe. You can then load more iDataAgents for application integration or VMWARE integration, depending on the information or data you want to safeguard. These agents provide the appropriate level of integration for File Systems, Databases, Exchange, SQL, and VMware guests to guarantee that the necessary data is secured at the appropriate level.
These agents will also ensure that VSS writers are properly called to ensure that the data in the snapshot at the point-in-time is consistent, that "ESEUtil" commands can be used to check Exchange Database consistency, and that VMware calls the appropriate software quiescing mechanisms to create consistent VMS.
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