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DR Series Software 3.2.0.2 - Administrator Guide

Introduction to the DR Series System Documentation Understanding the DR Series System Setting Up the DR Series System Hardware Configuring the DR Series System Settings Managing DR Series Storage Operations Monitoring the DR Series System Using Global View Using the DR Series System Support Options Configuring and Using Rapid NFS and Rapid CIFS Configuring and Using Rapid Data Access with Dell NetVault Backup and with Dell vRanger Configuring and Using RDA with OST
Understanding RDA with OST Guidelines Terminology Supported RDA with OST Software and Components Best Practices: RDA with OST and the DR Series System Setting Client-Side Optimization Configuring an LSU Installing the RDA with OST Plug-In Configuring DR Series System Information Using NetBackup Backing Up Data From a DR Series System (NetBackup) Using Backup Exec With a DR Series System (Windows) Understanding the OST CLI Commands Understanding RDA with OST Plug-In Diagnostic Logs Collecting Diagnostics Using a Linux Utility Guidelines for Gathering Media Server Information
Configuring and Using VTL Configuring and Using Encryption at Rest Troubleshooting and Maintenance Supported Ports in a DR Series System Getting Help
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Focus is on backups with minimal overhead
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Accommodates larger data transfer sizes
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Provides throughput that is better than CIFS or NFS
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DR Rapid and data management application (DMA) integration:
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DMA-to-media server software communication
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DR Series system storage capabilities can be used without extensive changes to DMAs
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Backup and replication operations are simplified by using built-in DMA policies
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DR Series system and DR Rapid ports and write operations:
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Control channel uses TCP port 10011
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Data channel uses TCP port 11000
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Optimized write operations enable client-side deduplication
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Replication operations between DR Series systems:
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No configuration is required on the source or target DR Series system
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Replication is file-based, not container-based
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Replication is triggered by DMA optimized duplication operation
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DR Series system transfers the data file (not the media server)
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After duplication completes, DR Series system notifies DMA to update its catalog (acknowledging the second backup). This makes the DMA aware of the replication location. Restores from either the source or replication target can be used directly from the DMA.
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Supports different retention policies between source and replica
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Replication is set up in the DMA itself, not the DR Series system
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Guidelines for using RDA with NetVault Backup and with vRanger

Guidelines for using RDA with NetVault Backup and with vRanger

For best results, observe the following guidelines for optimal performance with your supported RDA with NetVault Backup and RDA with vRanger operations with the DR Series system:

Backup, restore, and optimized duplication operations are performed using the RDA with NetVault Backup or RDA with vRanger plug-in.
 
NOTE: The plug-in is installed on client systems to support client-side deduplication.
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Deduplication. The DR Series system supports two deduplication modes:
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Passthrough: When this mode is selected, deduplication processing occurs on the DR Series system. Passthrough writes occur when data is sent from a media server to the DR Series system without applying any optimization to the data.
 
NOTE: Passthrough mode requires at least 200MB of free RAM on the backup client.
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Dedupe: When this mode is selected, dedupe writes occur when data is sent from a media server to the DR Series system after optimization is applied to the data; deduplication processing would occur on a NetVault Backup client, for example.
 
NOTE: Dedupe mode requires at least 4GB of free RAM on the DR Series system.
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Best Practices: RDA with NetVault Backup and vRanger and the DR Series System

Best Practices: RDA with NetVault Backup and vRanger and the DR Series System

This topic introduces some recommended best practices for using DR Rapid operations with the DR Series system.

The DR Series system supports having both RDS and non-RDS containers on the same appliance. However, this can cause incorrect capacity reporting as both container types share the same underlying storage.
RDS replication and non-RDS replication on the same DR Series system
Non-RDS replication must be configured, and it is replicated on a per-container basis. However, this type of replication will not replicate RDS containers. RDS replication is file-based and is triggered by the DMA.
Do not change the container connection type from NFS/CIFS to RDS
A non-RDS container must be deleted before this container can then be created as an RDS container using the same name.
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Setting Client-Side Optimization

Setting Client-Side Optimization

Client-side optimization (also known as client-side deduplication) is a process that can contribute to saving time performing backup operations and reducing the data transfer overhead on the network.

To configure dedupe/passthrough before the client makes a connection, you need to use the DR Series system command line interface (CLI).

NOTE: To update a client in the DR Series system GUI, the client must already be attached (and therefore enabled to appear in the GUI). If a client connection exists, you can select the radio button in the GUI to modify it.

You can turn On or turn Off client-side optimization by using the CLI commands, rda --update_client --name --mode. For more information about DR Series system CLI commands, see the Dell DR Series System Command Line Reference Guide located at dell.com/powervaultmanuals (by selecting your particular DR Series system).

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