- Volumes window

# Volumes window

Contents

The Volumes window is for adding volumes to a file system. Volumes (also called LUNs or block devices) are the underlying units of storage used to create Lustre* file systems. Each Lustre target corresponds to a single volume. Only volumes that are not already in use as Lustre targets or local file systems are shown. If servers in the volume have been configured for high availability, primary and secondary servers can be designated for a Lustre volume. A volume may be accessible on one or more servers via different device nodes, and it may be accessible via multiple device nodes on the same host.

On the Volume window, you can do the following:

•

Set or change the Primary Server and Failover Server for each volume. Each change you select to make will be displayed in orange, indicating that you have selected to change this setting, but have not applied it yet. Changes you make on this Volumes Configuration window will be updated and displayed after clicking Apply and Confirm. After confirming the change, the orange setting turns white. Other users viewing this file system's Volume Configuration window will see these updated changes after you apply and confirm them. If you select to change a setting (it becomes orange), you can click X to cancel that selection (it turns white and returns to the original setting). 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 and displayed.

• | View the status of all volumes in all file systems.

• | View each volume's name, primary server, failover server, volume size, and volume status.

▪ | A green Status light for the volume indicates that the volume has a primary and failover server.

▪ | A yellow Status light means that there is no failover server.

▪ | A red Status light indicates that this volume is not available.