Deployment considerations

You must consider the following for the deployment of IBM Storage Scale DAS.

Considerations for IBM Storage Scale container native

Review the deployment considerations for IBM Storage Scale container native. For more information, see IBM Storage Scale container native deployment considerations.

Considerations for Red Hat OpenShift Container Platform (OCP)

The following Red Hat OpenShift Container Platform (OCP) cluster considerations are in addition to those applicable for IBM Storage Scale container native.

  • IBM Storage Scale DAS restricts the configuration options for Red Hat OpenShift. For more information, see Dedicated Red Hat OpenShift clusters.
  • IBM Storage Scale DAS uses Red Hat OpenShift MetalLB for the scaling and the high availability of S3 access. The installation of IBM Storage Scale DAS includes the installation and the configuration of the MetalLB feature of Red Hat OpenShift.

Persistent storage for IBM Storage Scale DAS

The following Red Hat OpenShift Container Platform (OCP) cluster persistent volume considerations are in addition to those applicable for IBM Storage Scale container native.
  • The IBM Storage Scale DAS implicitly installs an embedded version of Red Hat OpenShift Data Foundation (ODF). ODF includes NooBaa.
  • NooBaa requires one local PersistentVolumes (PV) for NooBaa’s internal Postgres database. IBM recommends installing this database on an IBM Storage Scale file system.
  • This PV must have 50 GB free space created by Noobaa for its internal Postgres database storage and it must be created with the ReadWriteOnce (RWO) access mode.