vRanger 7.7.1 - Integration Guide for EMC Data Domain Boost (DD Boost)

Creating Storage Units

Creating Storage Units

The EMC® Data Domain® system exposes pre-made disk volumes called storage units to an EMC® Data Domain® Boost (DD Boost™)-enabled backup server. Each Storage Unit is a top-level subdirectory of the /data/col1 directory; there is no hierarchy among Storage Units. When used with vRanger, a DD Boost repository is configured at the Storage Unit level, meaning each DD Boost repository in vRanger equates to exactly one Storage Unit.

 

NOTE: You may also create a Storage Unit from the vRanger UI during the DD Boost repository configuration, or by using the EMC Data Domain Enterprise Manager web console.

1	To create a storage unit on the Data Domain system, enter:

# ddboost storage-unit create storage-unit_name

 

IMPORTANT: Each storage unit name must be unique. For devices running Data Domain OS 5.2 and later, the supported characters are alphanumeric characters and ~!@#$^_+`-={}[],.

2	Repeat the previous step for each DD Boost-enabled Data Domain system.

Configuring distributed segment processing

Configuring distributed segment processing

The distributed segment processing option is configured on the EMC® Data Domain® system and applies to all the backup servers and the EMC® Data Domain® Boost (DD Boost™) Libraries installed on them. For more information, see Distributed segment processing.

The option can be configured using the following command:

# ddboost option set distributed-segment-processing {enabled | disabled}

 

NOTE: Enabling or disabling the distributed segment processing option does not require a restart of the Data Domain file system.

Distributed segment processing is supported with DD Boost Library version 2.2 or later communicating with a Data Domain system that is running Data Domain OS 5.2 or later.

Distributed segment processing is enabled by default on a system initially installed with Data Domain OS 5.2. If a system is upgraded from Data Domain OS 5.0.x to Data Domain OS 5.2 or later, distributed segment processing is left in its previous state.

Configuring Advanced Load Balancing and Link Failover

Configuring Advanced Load Balancing and Link Failover

If an interface group is configured, when the EMC® Data Domain® system receives data from the backup server clients, the data transfer is load balanced and distributed as separate jobs on the private network, providing higher input and output throughput, especially for customers who use multiple 1 GbE connections.

Create an interface group on the Data Domain system by adding existing interfaces to the group and registering the Data Domain system with vRanger, as described in the following steps.

1	Verify that the interfaces have been created with the net command.

2	Add the interfaces into the group.

# ddboost ifgroup add interface 192.168.1.1

# ddboost ifgroup add interface 192.168.1.2

# ddboost ifgroup add interface 192.168.1.3

# ddboost ifgroup add interface 192.168.1.4

 

NOTE: Only one interface group can be created and this group cannot be named.

3	Select one interface on the Data Domain system to register with vRanger.

Quest recommends that you create a failover-aggregated interface and register that interface with vRanger.

It is not mandatory to have one of the interfaces in the ifgroup registered with vRanger. An interface that is not part of the ifgroup can also be used to register with vRanger.

 

NOTE: EMC recommends that you register the interface with a resolvable name using DNS or any other name resolution mechanism.

The interface registered with vRanger is used by vRanger and the DD Boost Library to communicate with the Data Domain system. If this interface is not available, backups to that Data Domain system are not possible.

4	Enable the feature on the Data Domain system:

# ddboost ifgroup enable

5	Verify the configuration of the Data Domain system:

# ddboost ifgroup show config

Interface

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192.168.1.1

192.168.1.2

192.168.1.3

192.168.1.4

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After the interface group is set up, you can add or delete interfaces from the group. You can manage Advanced Load Balancing and Link Failover — an interface group — by using the ddboost ifgroup command or from the Enterprise Manager Data Management > DD Boost view. For more information, see the EMC Data Domain Operating System Administration Guide.

Configuring replication

Configuring replication

With EMC® Data Domain® Boost (DD Boost™), vRanger can control replication between multiple EMC® Data Domain® systems and provide backup administrators with a single point of management for tracking all backups and duplicate copies. This configuration lets you efficiently create disaster recovery (DR) copies of your backups over the WAN, and track all the copies using the vRanger catalog for easy recovery.