Hedvig Cluster Hardware Prerequisites

This section describes the hardware prerequisites for setting up a Hedvig Cluster.

Cluster Storage Nodes

  • For a single Hedvig Cluster, a minimum of three cluster storage nodes is required.

  • Each physical node must have a minimum of 9 disks plus 3 SSDs. The disk drives must be physical disk drives (not emulated disks, such as VMDK, VHDX, or qcow2).

  • For a lab setup (that is, VMs on virtual disks), install Hedvig for functional testing only on the virtual disks. In this case, functional testing means that only disk creation and the use of the Hedvig WebUI are supported. Any level of IO is not supported on this system. The minimum requirements for a lab setup are shown in Hedvig Cluster Hardware and Resource Guidelines.

  • Nodes are preferably added in multiples of three, although they can be added in any quantity. There is no limit to the number of nodes that can be added.


  • 2 socket, 6 core each, minimum, with Hyper-threading. Intel E5/E7 Scalable Processors are supported (they must include AES support).

  • AMD EPYC 7000 Series Processors and above are supported.


  • Hyperscale: 128 G (without dedup), 256 G (with dedup)

  • Hyperconverged: Each hypervisor requires at least 768 GB RAM, and each storage VM requires 256 G RAM plus 16 vCPU.


  • 10 GB (single or dual) or higher speed interfaces

Disk Drives

  • Any drive type compatible with standard x64 servers (SAS, SATA, JBOD) is supported.

  • Any standard drive technology (SSDs, PCIe Flash, NVMe, conventional HDDs) is supported.

  • Any drive capacity, including the latest high-density drives, is supported.

  • Storage controllers should be JBOD (such as LSI 3108) or a RAID controller set to JBOD mode. Hedvig also supports RAID controllers that present each disk as a RAID 0 volume, although JBOD mode is strongly recommended.