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DR Series Software 4.0.3.1 - Administration 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 with 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 by 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 About us

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.
◦
Source—The name of the source container (with IP address or hostname)
◦
Status—The status of the source container.
◦
Replica—The name of the target container in the replication process (with IP address or hostname)
◦
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:
◦
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.
◦
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).
◦
State—The current peer status as In sync, Paused, or Replicating.
◦
Replication Average Transfer Rate
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Replication Peak Transfer Rate
◦
Network Average Transfer Rate
◦
Network Peak Transfer Rate
◦
Network Bytes Sent
◦
Network Bytes Pending
◦
Estimated Time to Sync
◦
Dedupe Network Savings
◦
Compression Network Savings
◦
Last INSYNC Time—The last time the system synchronization occurred.
◦
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.

Viewing replication statistics by using the CLI

In addition to using the DR Series system GUI to view replication information, you can also view statistics for a specific replication container by using the DR Series system CLI command: stats --replication --name <container name>

This command displays the following statistics.

•
Container Name (name of the replication container)
•
Replication Source Container (name that identifies the data source)
•
Replication Source System (IP address or host name of the data source)
•
Peer Status (current status of replication peer; for example, paused)
•
Replication State (current state of replication relationship; for example, insync)
•
Schedule Status (current status in days, hours, minutes, seconds)
•
Replication Average Throughput (in Kebibytes per second, KiB/s)
•
Replication Maximum Throughput (in KiB/s)
•
Network Average Throughput (average throughput rate in KiB/s)
•
Network Maximum Throughput (maximum throughput rate in KiB/s)
•
Network Bytes Sent (total network bytes sent in Mebibytes/MiB)
•
Dedupe Network Savings (total deduplication network savings in percentage)
•
Compression Network Savings (total compression network savings in percentage)
•
Last INSYNC Time (date of last sync operation in yyyy-mm-dd hh:mm:ss format)
•
Estimated time to sync (time until next sync operation in days, hours, minutes, and seconds)

Data replication history is also displayed on a file-by-file basis, with a replication timestamp, and other file related information.

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

Adding replication relationships

To add a new replication relationship, complete the following steps.

1.
In the left navigation menu, click Replications, and then select the storage group that contains the container for which you want to set up replication. (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.
In the Actions menu in the upper right corner of the page, click Add Replication.
The Add Replication pane is displayed.
3.
Next to Choose Replication Type, select one of the following options.
◦
Replica Only
◦
Replica & Cascade
4.
Click Next.
5.
To define the source container, for Select Container Location, select the Local or Remote option.
◦
If you select Local, select the local container from the drop-down list.
◦
If you select Remote, configure the following settings:
1.
Username—enter the username for the remote system.
2.
Password—enter the password for the remote system.
3.
Remote System—enter the domain name of the remote system.
4.
Click Retrieve Remote Containers.
5.
Select Remote Container—Select the remote container from the drop-down list.
6.
For Encryption, select one of the following encryption options to encrypt the data as it is replicated: Not Enabled, AES 128–bit, or AES 256–bit.
7.
Under Replica Container, define the target replica container by configuring the following settings.
◦
Username—enter the username for the remote system.
◦
Password—enter the password for the remote system.
◦
Remote System—enter the domain name of the remote system.
◦
Click Retrieve Remote Containers.
◦
Select Remote Container—Select the remote container from the drop-down list.
8.
If you specified to set up cascaded replication, define the cascaded replication by doing the following.
a.
Under Cascaded Replica Container, click Select a container from the remote system to select the container you will be using for the cascaded replica.
b.
Enter the logon credentials of the remote system.
c.
Click the Retrieve Remote Container button, and, in the drop-down list, select a remote container from the list of available containers.
d.
For Encryption, select one of the following encryption options: Not Enabled, 128–bit, or 256–bit.
9.
Click Save.
* 
NOTE: For information about starting and stopping replication, see the topic, "Starting and Stopping Replication." For information about scheduling system operations such as replication, see the topic, “Understanding System Operation Scheduling.”

Modifying replication relationships

You can modify the following replication settings: encryption and remote container’s IP address/host name settings. To modify settings for an existing replication relationship, complete the following steps.

* 
CAUTION: You should exercise caution when configuring the direction of replication for source and target containers. For example, target containers can have their contents deleted if they contain existing data.
* 
NOTE: Because you cannot modify an existing defined role (source or target replica) for a replication relationship, if necessary, you must delete the existing replication relationship, and then recreate a new relationship with the specific source and target roles that you want.
1.
In the left navigation menu, click Replications, and then select the storage group that contains the container for which you want to modify replication. (If you are only using the DefaultGroup storage group in your DR Series system, you do not need to select a group.)
The Replication page is displayed, which lists all current replication entries.
2.
From the list, select the replication relationship that you want to modify, and click to expand the details.
3.
Click the Edit icon and then, in the Edit Replication pane, modify the settings/values for the Source, Replica, or Cacscaded Replica containers as needed.
a.
For Remote System, modify the IP address/host name and user logon credentials of the source remote system as needed.
b.
Review the replication details, and then click Save.
4.
Click Save.
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