# Distributed Storage

Deprecated

Distributed Storage is deprecated.

For comprehensive information about deprecated products, see End-of-Life, Deprecated and Extended Support - Products.

Distributed Storage can be configured as a Disk Library using a Commvault MediaAgent.

To setup the disk library you must setup the storage servers and the Commvault MediaAgent which will also act as a Distributed Storage Proxy to move the data to the storage servers.

## Terminology

This documentation uses the following terminology.

Storage Servers | Consists of the storage servers (or nodes) which together will act as a repository for the data.
Storage Proxy | Storage proxy along with Commvault MediaAgent moves the data between the client and the storage servers.
Deployment Server | Deployment server is used to deploy the software on storage servers and the proxies.
Protection Policy | Determines the method of storing the data. Protection Policy can be one of the following: Replication is the simplest form of data protection, which replicates and maintains one or more additional copies of the original objects. Erasure Coding is a data protection method which duplicates blocks of data across storage media. Erasure coding adds redundancy to the system and tolerates failures without data loss.

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