Micro Cluster

  • This cluster size is comprised of:

    • A three (3) node OpenShift cluster

    • Control plane running on three (3) nodes

    • Storage and compute running on all three (3) nodes with compute

    • Example node size:

      • CPU: 64 cores

      • Memory: 512GiB

      • OS Disks: 2x512GB (RAID1)

      • Cluster Storage (ODF): 2x 8TB NVMe/SSD disks

      • Network: 6x 25Gb NICs

    • The resulting cluster has 342 vCPU (with 4:1 overcommit), 826GiB memory, and 10.4TB storage available for workloads.

      • 34% of compute and memory capacity is reserved for HA

      • 10% of compute capacity is reserved for spare/burst

      • The suggested storage capacity above reflects 65% of the capacity used

The financial company’s Proof of Technology (PoT) environment fits in this Micro cluster category.

The high-level design for the micro form factor cluster would look like the following:

micro cluster design