Incorporating IBM Storage Scale Erasure Code Edition in an IBM® Elastic Storage Server (ESS) cluster

Use these procedures to incorporate IBM Storage Scale Erasure Code Edition in an Elastic Storage Server (ESS) cluster.

Ensure that the following prerequisites are met before you install IBM Storage Scale Erasure Code Edition in an Elastic Storage Server (ESS) cluster.
Note: An existing IBM Storage Scale Erasure Code Edition setup is not supported for this integration procedure. Before performing the procedure, the installation prerequisites must be met on IBM Storage Scale Erasure Code Edition candidate nodes.
  • ESS version is 5.3.4 or later.
  • IBM Storage Scale Erasure Code Edition version is 5.0.3.1 or later.
    Note: IBM Storage Scale Erasure Code Edition version that you use in this procedure must match the version that is already running on the system. You cannot integrate IBM Storage Scale Erasure Code Edition into an Elastic Storage Server (ESS) cluster and upgrade IBM Storage Scale Erasure Code Edition at the same time.
  • Minimum hardware requirements are met.
  • All typical IBM Storage Scale and ESS prerequisites such as passwordless SSH, minimum OS levels, python, sg3_utils, and pciutils software requirements are met.

    The IBM Spectrum® Scale installation toolkit can help identify any missing prerequisites.

  • Network performance minimum requirements are met.
  • General understanding of how the IBM Storage Scale installation toolkit process works.
  • Possible protocol architecture conflicts are mitigated.

The installation of IBM Storage Scale Erasure Code Edition in an Elastic Storage Server (ESS) cluster comprises four phases.

  1. Phase 1: Convert ESS into mmvdisk management.
  2. Phase 2: Add nodes to the ESS cluster using the installation toolkit.
  3. Phase 3: Prepare the IBM Storage Scale Erasure Code Edition cluster using the installation toolkit.
  4. Phase 4: Complete the configuration with mmvdisk commands.