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DR Series DR4300 - DR Series System Administrator's Guide

Introducing the DR Series system documentation Introducing the DR Series system Setting up the DR Series system Configuring the DR Series system settings Managing containers Managing replications Monitoring the DR Series system Using GlobalView Configuring and using Rapid NFS and Rapid CIFS Configuring and using Rapid Data Access with NetVault Backup and with 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 Support, maintenance, and troubleshooting Supported Ports in a DR Series System

Displaying container statistics by using the CLI

Displaying container statistics by using the CLI

An alternate method for viewing container statistics is by using the DR Series system CLI command: stats --container --name <container name>

This command shows the following information:

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Container Name (name of the container)
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Container ID (ID associated with container)
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Total Inodes (total number of data structures in container)
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Read Throughput (read throughput rate in Mebibytes or MiB/s for container)
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Write Throughput (write throughput rate in MiB/s for container)
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Current Files (current number of files in container)
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Current Bytes (current number of ingested bytes in container)
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Cleaner Status (current space reclamation process status for the selected container)

For more information on DR Series system CLI commands, see the DR Series System Command Line Reference Guide.

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Managing replications

Managing replications

Guidelines and prerequisites for replication
Viewing replication information
Adding replication relationships
Modifying replication relationships
Deleting replication relationships
Starting and stopping replication
Adding a cascaded replica

In the DR Series system GUI, you can set up and manage data replication operations. Such replication operations include, creating new replication relationships, managing or deleting existing replication relationships, starting and stopping replication, and displaying current replication statistics.

 
 

Guidelines and prerequisites for replication

Guidelines and prerequisites for replication

Refer to the following important notes and guidelines for understanding and using replication in the DR Series system.

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TCP Port Configuration—If you plan to perform replication operations across a firewall, the DR Series system replication service requires that the following fixed TCP ports be configured to support replication operations:
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port 9904
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port 9911
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port 9915
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port 9916
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DMAs and Domain Relationships

— To allow replication storage information to be viewed by a corresponding data management application (DMA), the target DR Series system must reside in the same domain as the source DR Series system in the replication relationship.

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Replication Limits —

Refer to the DR Series System Interoperability Guide for details about the supported system limits for replication per DR Series system model. For a definition of connections and streams, see Streams_vs_Connections.

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Version Checking — The DR Series system software includes version checking that limits replication only between other DR Series systems that run the same system software release version. If versions are incompatible, the administrator will be notified by an event, and replication will not continue.
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Storage Capacity and Number of Source Systems — Be aware that the storage capacity of the target DR Series system is directly affected by the number of source systems writing to its containers, and also by the amount being written by each of these source systems.
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MTU Setting — Primary and secondary replication targets should have the same network maximum transmission unit (MTU) setting. See the topic, “Configuring Network Settings,” for more information about this setting.
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Viewing replication information

Viewing replication information

Viewing replication statistics by using the CLI

In the DR Series system GUI, the Replication page displays current information about replication relationships for data containers in your DR Series system. To view replication information, follow these steps.

1.
In the left navigation menu, click Replications, and then select the storage group that contains the container for which you want to view replication information. (If you are only using the DefaultGroup storage group in your DR Series system, you do not need to select a group.)

The Replications page is displayed.

2.
You can view the following columns of information on this page.
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Source—The name of the source container (with IP address or hostname)
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Status—The status of the source container.
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Replica—The name of the target container in the replication process (with IP address or hostname)
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Cascaded Replica—The name of the remote replication container (with IP address or hostname)
3.
You can click a selected replication in the list to expand to view the following detailed replication information about the source and target:
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Peer State—Displayed as Online, Offline, Paused, or Disconnected. When replication is started, the Peer State displays the status as Online for the selected container. When stopped, the Peer State initially displays the status as Paused, and then changes to Offline.
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Peer Bandwidth—Shown as Kibibytes per second (KiB/s), Mebibytes per second (MiB/s), Gibibytes per second (GiB/s), or default (an unlimited bandwidth setting).
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State—The current peer status as In sync, Paused, or Replicating.
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Replication Average Transfer Rate
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Replication Peak Transfer Rate
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Network Average Transfer Rate
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Network Peak Transfer Rate
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Network Bytes Sent
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Network Bytes Pending
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Estimated Time to Sync
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Dedupe Network Savings
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Compression Network Savings
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Last INSYNC Time—The last time the system synchronization occurred.
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Time Until Scheduled Run—The time until the next scheduled run or the value, "In window," meaning the replication is currently in the scheduled window.
 
NOTE: These statistics refresh every 30 seconds.
 
 
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