Data Foundation
The service provides a foundational data layer for applications to function and interact with data in a simplified, consistent, and scalable manner.
Before you begin
- If you already have an installation of IBM Storage Fusion Data Foundation cluster or Red Hat® OpenShift® Data Foundation cluster, then the IBM Storage Fusion UI automatically discovers it. However, in the Data Foundation page, you can only view the Usable capacity, Health, and information about the storage nodes.
- If you have a Rook-Ceph operator, then contact IBM Support for the expected behavior.
- You can use a maximum of nine storage devices per node. The high number
of storage devices leads to a higher recovery time during the loss of a node. This recommendation
ensures that nodes stay below the cloud provider dynamic storage device attachment limits, and
limits the recovery time after node failure with local storage devices.
It is recommended to add nodes in the multiple of three, each of them in different failure domains.
For deployments having three failure domains, you can scale up the storage by adding disks in the multiple of three, with the same number of disks coming from nodes in each of the failure domains.
-
Run following steps to ensure that there is no previously installed IBM Storage Fusion Data Foundation, Red Hat OpenShift Data Foundation, OpenShift Container Storage, or Rook-Ceph in this OpenShift cluster before you enable the IBM Storage Fusion Data Foundation service:
- Verify that the namespace
openshift-storage
does not exist. - Run the following command to confirm that no resources exist:
oc get storagecluster -A; oc get cephcluster -A
- Run the following command to confirm that none of the nodes have a IBM Storage Fusion Data Foundation storage label or Red Hat OpenShift Data Foundation storage label:
oc get node -l cluster.ocs.openshift.io/openshift-storage=
- Verify that the namespace
-
- Infrastructure nodes
- Ensure that the following prerequisites are met:
- For infrastructure requirements, see Infrastructure requirements of IBM Storage Fusion Data Foundation.
- For IBM Storage Fusion Data Foundation resource requirements, see ODF sizer tool. For common IBM Storage Fusion Data Foundation components per instance requirements of CPU and Memory, see Resource requirements.
- If you want to deploy IBM Storage Fusion Data Foundation in an
Infra node, make sure the worker node label
exists.
oc get node -l "node-role.kubernetes.io/worker="
- Ensure that there are no taints in the infra or compute nodes that are used as storage nodes.
About this task
- A IBM Spectrum Scale remote mount can coexist with IBM Storage Fusion Data Foundation.
- You can configure only local or dynamic storage for IBM Storage Fusion Data Foundation but not both.
- For Red Hat OpenShift Data Foundation deployed outside of IBM Storage Fusion, you cannot add nodes from IBM Storage Fusion instead you get redirected to add nodes from OpenShift Container Platform web console.
- The IBM Storage Fusion supported Global data platform
and IBM Storage Fusion Data Foundation work together scenarios:
- Deploy IBM Storage Fusion Data Foundation
dedicated
mode first and then deploy Global data platform.- Support is available to deploy IBM Storage Fusion Data Foundation dedicated first and then deploy Global data platform. Support is not available to deploy Global data platform first and then deploy IBM Storage Fusion Data Foundation dedicated.
- If you want to deploy IBM Storage Fusion Data Foundation in a
dedicated
mode, then you need to deploy IBM Storage Fusion Data Foundation first and then Global data platform.
- Deploy IBM Storage Fusion Data Foundation
- The following table shows IBM Storage Fusion
IBM Storage Fusion Data Foundation service supported platforms and
backend devices to provision a storage cluster:
Platform Support VMware Local device and dynamic storage class Bare Metal Local device Linux on IBM zSystems Local device ROKS on IBM Cloud (ROKS on VPC and Classic Bare Metal) Cloud-managed IBM Storage Fusion Data Foundation service. For the procedure to install, see Understanding IBM Storage Fusion Data Foundation. Self managed OpenShift Container Platform on Microsoft Azure Dynamic storage class Self managed OpenShift Container Platform on Amazon Web Services Dynamic storage class - On platforms that uses dynamic storage class to install IBM Storage Fusion Data Foundation, IBM Storage Fusion user interface supports to install Data Foundation service and configure IBM Storage Fusion Data Foundation storage cluster. You can also view the storage cluster status in IBM Storage Fusion user interface. For more information about how to configure Data Foundation dynamic storage from IBM Storage Fusion user interface, see Configuring Data Foundation dynamic storage.
- For IBM Storage Fusion services and platform support matrix and reference links for the installation of IBM Storage Fusion Data Foundation on ROSA and ARO, see IBM Storage Fusion Services support matrix.
Procedure
What to do next
- Go to the Data Foundation page and configure local storage and add nodes to
the local storage. For more information about the procedure, see Adding nodes to your IBM Storage Fusion Data Foundation storage. Note: You can view the Usable capacity and Health for an externally discovered IBM Storage Fusion Data Foundation but cannot configure storage.
- Configure dynamic storage. For more information about the procedure, see Configuring Data Foundation dynamic storage.