Configuring Global Data Platform local storage

Configure Global Data Platform as your storage, then configure storage nodes, and finally set its encryption.

1. Go to Storage > Local storage.
2. Wait for the discovery of compute nodes to complete.
   After the discovery process completes, the Configure storage button is enabled.
3. Click Configure.
4. Click Next.
5. In the Storage option wizard page, click Stronger data resiliency tile or Better storage efficiency tile.
6. Expand Advanced and select Block size.

   An advanced setting is available that allows you to customize the Block size for IBM Fusion HCI’s Global data platform. As OpenShift® clusters run a mix of workloads with different I/O characteristics, it is recommended that you use the default 4 MiB block size that is optimized for mixed workloads.

   If the applications that get deployed to the OpenShift cluster are specifically workloads that drive large or small IOs, you can customize the block size for better performance.

   For single rack, the available block sizes for Stronger data resiliency or (4+2p) erasure code are 1 MiB and 4 MiB.

   For high-availability cluster, the available block sizes for Stronger data resiliency or (4+3p) erasure code are 1 MiB and 4 MiB.

   The available block sizes for Better storage efficiency or (8+3p) erasure code are 1 MiB, 4 MiB, and 16 MiB.

   Note: Considerations before you choose a block size:

   1. For general workloads, it is recommended to choose 4 MiB block size.
   2. If the cluster primarily deals with many small files, it is recommended to choose a small block size such as 1 MiB.
   3. For large files or streaming workloads, it is recommended to choose 16 MiB block size.

   For more information about block size, see Block size.

7. Click Configure.
8. Go to the Global Data Platform page in the IBM Fusion user interface.
   The Local storage page now includes Usable capacity, Health, and Nodes sections. Here, the Usable capacity is configuring storage and the Health is initializing.

   Note: Sometimes, it can take up to five minutes to show the summary of Usable capacity and Health sections.

   Usable capacity

   The amount of capacity that is available for storing data on a system after the RAID or mirroring technology is applied. Usable capacity is represented in a line graph.

   Health

   It includes the health of the following:

   • Storage cluster
   • Global Data Platform service

   The status gets displayed only after the provisioning is complete.

   Nodes

   It includes a list of all nodes that you used in your local storage configuration. The node details listed in the table are Name, Storage status, Type, Disk count, Disk size (TiB), CPU core, and Memory (GiB).

   In the Nodes section, the initial Storage status is Installing storage software. After the initial status, it can have the following statuses:

   Normal

   The component or the service that is hosted on the node is working as expected, and no active error events exist.

   Critical

   The component or the service that is hosted on the node failed because of the failure of some of its critical components.

   Degraded

   The node or the service that is hosted on the node is not working as expected. A problem occurred with the component, but it is not a complete failure.

   Unknown

   The status of the component or the service that is hosted on the node is not known.

   You can use the search option to filter and search for nodes. You can add nodes to scale up.

9. To enable encryption, click Configure encryption.
   If the encryption is already set up, then the Connection settings is displayed.

   For the procedure to configure encryption, see Configuring encryption for Global Data Platform storage.