Proxy 3 4 16 400 Worker 3+ 8 32 400 Vulnerability advisor 3 6 24 500 Node Type Number of  Nodes CPU Memory (Gb) Disk (Gb) Node Type Number of  Nodes CPU Memory (Gb) Disk (Gb) Boot 1 4 8 250 Master 3 16 128 500 Management 2 16 128 500 Proxy 2 4 16 400 Worker 500 8 32 400 Vulnerability  advisor 3 6 48 500 Node Type Number of  Nodes CPU Memory (Gb) Disk (Gb) Boot 1 4 8 250 Master 3 16 128 500 Management 5 16 128 500 Proxy 2 4 16 400 Worker 1000 8 32 400 Vulnerability  advisor 3 6 48 500 Table 2-5 Large size environment with 1000 worker nodes Table 2-4 Large size environment with 500 worker nodes Large size environment (worker nodes < 500) with high resiliency Large size environment (worker nodes < 1000) with high resiliency 2.2 High Availability models for IBM Cloud Private cluster Table 2-4 below shows sizing for large sized IBM Cloud Private cluster environment with 500  or less worker nodes. Table 2-5 shows sizing for large sized IBM Cloud Private cluster environment with 1000 or  less worker nodes. Listed below are three classification models for highly available IBM Cloud Private cluster: GLYPH<SM590000> Intra Cluster GLYPH<SM590000> Intra Cluster with multiple availability zones GLYPH<SM590000> Inter Cluster with federation on different availability zones Chapter 2. High availability installation  35