5 1 0:Creating a Replication Task

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Overview


Replication involves creating and maintaining redundant copies of data in a separate location, ensuring data availability and resilience. In SEP sesam, different types of replication are available, the SEP Si3 replication and HPE StoreOnce replication, with different capabilities and benefits.

A replication task defines the scope, settings, and destination for the replication process. Replication tasks enable you to replicate data from a source location to a target location, providing data redundancy and facilitating efficient data recovery.

There are two primary methods to perform replication in SEP sesam:

  • You can schedule replication events, where replication tasks are executed at specific times or intervals. This allows you to automate the replication process and maintain up-to-date copies of your data in the target location.
  • You can configure replication tasks as follow-up events for backup events. With this approach, data replication is triggered immediately after successful backups. By combining replication tasks with backups, data is promptly replicated, minimizing the risk of data loss and enhancing data availability.

Create a replication task

To create a new replication task, go to Main Selection -> Tasks -> Replication Tasks, and then click on New Replication Task.

Define the settings and options as required. For detailed explanations of the available options, refer to section Replication task options.

Information sign.png Note
Only savesets with statuses successful and with warnings are selected for replication, while savesets with errors and partially restorable savesets (containing data from cancelled backups) are not replicated.

You can view the status of your replication jobs. In Web UI navigate to Monitoring -> Migrations/Replications and review the job results. The status overview lists replication tasks by name, along with details of completion status, start and end times, and media pools used for the job.

Screenshots

New replication task.jpg

Replication task options

When creating or modifying a replication task, the following options are available to customize its settings and behavior.

Options

General
Name Enter the name for the replication task.
Storage settings
Media pool (source and destination) Select the source media pool, from which the data will be replicated, and the target media pool, to which the data will be replicated.
Drive (source and destination) Select the drive number of the drive that will be used to read the data in the source media pool, and the drive number of the drive that will be used to write the data in the target media pool.
Interface (source and destination) Optionally, specify the network interface of the RDS for the source and destination, which will be used for data transfer.

For HPE replication, note that if the source and target HPE Catalyst stores are connected to the same RDS via Fibre Channel, you must select the interface of the target Catalyst store from the drop-down list, otherwise replication may fail.

Backup date
Date You can select this option to specify a fixed time range for the replication process. If you want that the time range is adjusted automatically, you can use the option Relative backup date.
Relative backup date You can specify the number of days in the past to define the time frame for the replication process.

For example, if you specify a relative time frame from -7 to -2, it will replicate the data for the past five days, starting from seven days ago and ending the day before yesterday (two days ago). Similarly, a relative time frame from -10 to 0 will replicate data from the last 10 days. Because replication only copies new blocks of data, you can specify a high number in the From field, such as -99,999. This ensures that all backups since the initial replication will be checked, but only the changed data will be replicated.

Note that positive values cannot be set, as they would indicate a time range in the future. The value 0 represents the current day.

Based on You can select whether the time frame for the replication process is based on calendar days or Sesam days. By default, Sesam days is selected. For more information, see Backup day.
Options
Options Optionally, you can configure additional options to be performed with this task.
Note Add any comments or information related to the replication task.


See also

Creating a Replication Event - Configuring Replication - About Replication

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