Configuring Network Interfaces for Replication
530-0267-00 Rev 02
7700 Flash Storage Platform Installation Guide 7.6.3.x
133
Using Symphony to Configure Replication
The status of Concerto-based devices such as the 7700 FSP Controllers at each site as either
primary
or
replica
is determined on a per LUN-basis. You need to enable LUN replication using the
procedures in Symphony Help.
Note:
This section only provides an overview of the tasks that are involved in configuring
replication. For specific details and procedural steps, see the latest version Symphony Help.
Task 1: Adding LUNs
1.
Complete any necessary prerequisites.
2.
Select
Manage > Devices
.
3.
Select a 7700 FSP Controller in the Manage Devices panel in the left navigation pane (you are
choosing the device that will be a primary replica server).
4.
With the
LUNs
tab selected, click
Add (+)
and specify the options to create a LUN.
5.
Complete the procedural steps in the "Adding LUNs" topic in Symphony Help to add the LUN
needed for replication.
Task 2: Creating a Snapshot Resource
Before you can add a replication policy, you must first create a snapshot resource for the LUN. You
can create a snapshot resource using the procedures in Symphony Help. This section only provides
an overview of the tasks that are involved in adding a snapshot resource (for specific details and
steps, see the latest version Symphony Help).
1.
Select
Manage > Devices > Snapshot Resources
.
2.
Select a 7700 FSP Controller in the Manage Devices panel in the left navigation pane.
A list of available LUNs on the device appears in a table in the main window.
3.
Click to select a LUN from the list, which highlights the selected LUN.
4.
Click
Add (+)
.
The
Create Snapshot Resource
dialog displays.
5.
Complete the procedural steps in the "Creating a Snapshot Resource" topic in Symphony Help
to configure and create a Snapshot Resource needed for replication.
Task 3: Creating a Replication Policy for a LUN
Replication is the process by which a SAN resource maintains a copy of itself, and the data is
copied, distributed, and then synchronized to ensure consistency between the redundant
resources. The LUN that is being replicated is known as the primary LUN, and the changed data is
transmitted from the primary to the replica LUN so that they are in synch with one another.
You can create a replication policy for the designated LUN using the procedures contained in
Symphony Help. This section only provides an overview of the tasks that are involved in creating a
replication policy (for specific details and steps, see the topic on creating a replication policy for a
LUN in the latest version Symphony Help). This is a three-step process:
•
Define the primary and replica LUNs