- Configure primary and failover servers

# Assign primary and failover servers to storage volumes

Contents

This section establishes the primary and failover storage servers for each volume, to support-high availability.

Caution: Configuring primary and failover servers on the Volumes window does not by itself enable high-availability. Automated failover also requires power management support by PDUs and outlet assignments or by assigning BMCs to servers. See Add power distribution units or Assign BMCs to servers. It is important to remember these server/volume configurations for when configuring power distribution units (PDUs) and outlet-server assignments.

Note: This section is for configuring managed storage servers, as previously set up in Add storage servers. This section does not apply to servers that are monitor-only.

To view the volumes that were discovered and make adjustments to volume configurations, complete these steps:

1. | At the menu bar, click the Configuration drop-down menu and click Volumes to display the Volume Configuration window. A list of available volumes is displayed (if a volume does not contain unused block devices, it will not appear on this list).

2.

The Volume Configuration window displays the current primary and failover servers for each volume. If required, you can change these primary and failover server assignments. To do so, for a given volume select the volume's Primary Server from the drop-down list. Then select the Failover Server from the drop-down list. Changes you make to volume/server configuration appear in blue, indicating that you have selected to change this setting, but have not applied it yet. To undo a change in-process, click the x.

3. | Repeat step 2 for each volume that has a primary and failover server.

4. | Click Apply. Then click Confirm.

Changes you select to make on this Volumes Configuration window will be updated and displayed after clicking Apply and Confirm. Other users viewing this file system's Volume Configuration window will see these updated changes after you apply and confirm them. To cancel all changes you have selected (but not yet applied), click Cancel.

Note: There is currently no lock-out of one user's changes versus changes made by another user. The most-recently applied setting is the one in-force.

Next, proceed to Add power distribution units or Assign BMCs to servers. It is important to remember these server/volume configurations for when configuring power distribution units (PDUs) and outlet-server assignments.