Environmental requirements
Ensure that the power for the rack used to install NetApp HCI is supplied by AC power
outlets, and that your datacenter provides adequate cooling for the size of your NetApp
HCI installation.
For detailed capabilities of each component of NetApp HCI, see the NetApp HCI datasheet.
The H410C compute node operates only on high-line voltage (200-240 VAC). You must
ensure that the power requirements are met when you add H410C nodes to an existing
NetApp HCI installation.
Find more information
• NetApp HCI Resources page
• NetApp Element Plug-in for vCenter Server
Protection domains
NetApp Element software supports protection domains functionality, which optimizes data
layout on storage nodes for the best data availability. To use this feature, you should split
storage capacity evenly across three or more NetApp H-series chassis for optimal
storage reliability. In this scenario, the storage cluster automatically enables protection
domains.
Find more information
• NetApp HCI Resources page
• NetApp Element Plug-in for vCenter Server
Witness Node resource requirements for two-node storage
clusters
NetApp HCI supports a minimum installation size of two storage nodes and two compute
nodes. When you install NetApp HCI using a two or three-node storage cluster, you need
to be aware of NetApp HCI Witness Nodes and their VM resource requirements.
When a storage cluster uses two or three nodes, it also deploys a pair of Witness Nodes alongside each
storage cluster. Witness Nodes have the following VM resource requirements:
Resource Requirement
vCPU 4
Memory 12GB
Disk size 67GB
NetApp HCI supports only certain storage node models in two-node or three-node storage clusters. For more
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