# Getting Started with OCI File Storage with Lustre

Verify that your environment meets the system requirements, complete the file server guided setup, add a user-defined subclient, and then perform a test backup and restore.

## Procedure

1. Create a backup plan from Command Center.

2. Verify that your environment meets the requirements.

   - Pre-deploy the access nodes in the same OCI compartment as your OCI Lustre deployment.

     The access nodes must meet software and hardware specifications.

   - Access nodes for OCI File Storage with Lustre must be running Oracle Enterprise Linux (with Red Hat Compatible Kernel).

     - Changing the default kernel in Oracle Linux | It's as simple as 1-2-3

   - Lustre is supported only on x64 processors.

   - There is no access to MDS/MDT servers for optimized scanning.

     - Each 100 million files require approximately 3 hours and 10 minutes of scan time, and every 100 to 150 TB of application data needs one large access node.

     - Commvault recommends having a minimum of two access nodes for improved parallelization and redundancy.

     - Load balancing across nodes gives better overall performance.

       - For example, if backing up 400 TB data, Commvault recommends using four medium-sized access nodes rather than two large-sized access nodes.

     Example Scan Time

     Items scanned | Time taken to scan | Content
     --- | --- | ---
     100 million in 1 subclient | 3 hours 10 minutes | Entire volume: /lustrefs

     Note

     For faster scanning times with a very large number of files, especially where there is no access to the MDS for fast incremental scanning, you can create multiple subclients and split the data across them to run multiple jobs in parallel.

3. Follow this guide to mount the Lustre file system to the access nodes.

4. Configure the LustreUseRecursiveScan setting on the access nodes.

   Configure the LustreUseRecursiveScan additional setting.

   1. From the Command Center navigation pane, go to Manage > Infrastructure > Server groups.

   2. Click Add server group.

   3. Enter the Server group Name.

   4. Click Add Server.

   5. Find and select the access nodes, and then click Save.

   6. On the Configuration tab, on the Settings tile, click Add.

   7. Add the LustreUseRecursiveScan setting.

5. Add OCI File Storage with Lustre.

6. Back up Lustre data.

7. Restore Lustre data.

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