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Node Sizing

Workload Resources

The resources listed below are the requirements for VergeOS. Additional resources will be required to support your specific workloads. When planning your deployment, ensure you account for the resources needed by your virtual machines, applications, and other workloads running on the system.

Minimum Requirements#

Generic Requirements (All Node Types)#

  • Intel or AMD x86 64-bit processor with hardware virtualization support
  • Minimum of 16GB RAM dedicated to VergeOS
  • IPMI, iDrac, iLO, or equivalent technology
  • HBA (preferred) or RAID controller that supports JBOD or IT mode - NO RAID
  • 1 x 1GbE NIC for External Network (Intel, Mellanox, or Broadcom)
  • 1 x 10GbE NIC for Core Fabric Network (Intel, Mellanox, or Broadcom)

Controller Nodes (Node 1 and Node 2)#

  • 1GB of RAM per 1TB of storage for each node
  • Tier 0: 1 x NVMe-based SSD for vSAN metadata with 3 Drive Writes Per Day (DWPD)
  • Tier 0: 10GB of storage per 1TB of usable capacity for vSAN metadata

Storage Nodes (Nodes that partipate in vSAN storage)#

  • 1GB of RAM per 1TB of RAW storage for each node
  • Minimum of one NVMe or SATA/SAS SSD per node for workload storage
  • HDDs can be used for snapshot, archive, or file based service storage
  • At least 2 nodes with the same disk configuration for data redundancy

HDDs larger than 8TB are not recommended in non-archive-specific environments due to extended drive rebuild times.

Compute-only Nodes#

  • Only the generic requirements apply to Compute-only nodes
  • CPU and Memory should be architected for workloads running on these nodes

GPU (Optional)#

  • Compatible with any AMD, Intel, or Nvidia GPU1
  • Nvidia vGPU also supported
  • Intel or AMD x86 64-bit processor with hardware virtualization support
  • Minimum of 16GB RAM dedicated to VergeOS
  • IPMI, iDrac, iLO, or equivalent technology
  • HBA controller
  • Minimum of 16GB RAM dedicated to VergeOS
  • 2 x 25/40/100GbE NICs (Intel, Mellanox, or Broadcom)
  • 2 x 10/25/40/100GbE NICs (Intel, Mellanox, or Broadcom)
  • Dedicated Controller Nodes
  • 1 x +3.0Ghz CPU
  • Tier 0: 2 x NVMe-based SSD for vSAN metadata with 3 Drive Writes Per Day (DWPD)
  • Tier 0: 10GB of storage per 1TB of usable capacity for vSAN metadata
  • 2 x +3.0Ghz CPU
  • 1 CPU core per disk
  • 1.5GB of RAM per 1TB of storage for each node
  • 2 x NVMe or SATA/SAS SSD per node for guest usage; more SSDs recommended for enhanced performance
  • At least 2 nodes with the same disk configuration for data redundancy
  • Only the generic requirements apply to Compute-only nodes
  • CPU and Memory should be architected for workloads running on these nodes

Additional Resources for Workloads

Remember to account for additional resources needed by your specific workloads, virtual machines, and applications when planning your deployment.

Maximum Supported Hardware Specifications#

The following table outlines the maximum supported hardware specifications for various resources in the VergeOS system as of version 4.12:

Resource Maximum Resource Type
Nodes per system 200 node
Individual physical disk size 64 terabyte
RAM per host 2 5 terabyte
vDisk size 2000 terabyte
Disks per VM 3 2000 vdisk
Clusters per system 100 cluster
Tiers of storage per system 5 tiers
vSAN Fault domains per system 2 vSAN

  1. Graphics cards are supported for VM usage and may not function for console access. ↩

  2. vSAN nodes require a minimum 1GB of RAM per 1TB of Storage ↩

  3. Virtio-SCSI Interface required ↩