Dell POWEREDGE R710 - Manual (Page 12)

Dell HPC Tiered Storage Solution
Page 10
Key software features of CommVault Simpana 9 in HSM
There are two key features of CommVault Simpana 9 in HSM: Policy Based Migration and Transparent
Access.
Policy based migration
Rules definable by thresholds, owners, age, size, filters, folders or other search criteria allow added
flexibility. Data can move from its existing tier space to a different tier space, or copy to another tier,
thereby enabling data protection within the same solution.
Transparent access
End users maintain their access as before the archiving or HSM occurred. Also, the user can search and
recall the information from the archive or stub file in the originating tier in the HSM scenario,
minimizing the help needed from administrators.
CommVault Simpana 9 Components
The following section goes into more detail on the various components that make up the Simpana 9
package.
CommCell
The CommCell consists of Common Technology Engine (CTE) components including one CommServe,
one or more Media Agents, and one or more Client Agents. The CommCell is managed by a CommCell
Console, which includes tabs for Security, Storage Resources (including Libraries), Policies (including
Replication, Schedule and Storage Policies) and Reporting. The TSS will have the PowerVault DL2200
serve as the central management for the CommCell via the CommCell Console.
CommServe
The CommServe Server ties the CommCell components together; it is the coordinator and administrator
of the CommCell component. The CommServe Server communicates with all agents in the CommCell to
initiate data migration, protection, management and recovery operations. Similarly, it communicates
with MediaAgents when the media subsystem requires management. The CommServe Server maintains
a database, the CommServe Database Engine, which contains all of the information related to the
CommCell configuration. The TSS includes a PowerVault DL2200 Appliance to be used as the
CommServe Server.
MediaAgent(s)
The MediaAgent transfers data between the client computer(s) and the storage media. Each
MediaAgent communicates locally or remotely to one or more storage devices. The TSS includes the
CommVault Linux Media Agent on the NSS server node(s).
Client Archive Agents
Migration Archiver Agents are the software modules responsible for periodically moving unused or
infrequently used data on their host computers to secondary storage, thereby reducing the size of data
on the primary storage. The TSS includes the CommVault File Archiver Agent on the NSS server node(s).