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Validation Guide—Dell EMC VxRail Hyperconverged Infrastructure on SAP HANA
Executive summary VxRail requirements for SAP HANA
SAP certified VxRail models
Sizing considerations
CPU and memory considerations
Sizing a VxRail cluster
SAP HANA VMs per node and per total
Disks
Networks
Configuration recommendations for SAP HANA virtual machines Network considerations Support requirements and considerations References Appendix A: Deploying Dell EMC Networking SmartFabric Services with VxRail HCI

Sizing a VxRail cluster

Sizing a VxRail cluster

  • A VxRail cluster can have a minimum of 3 nodes and as many as 64 nodes. When running SAP HANA in production on a VxRail cluster, it is strongly recommended to use a minimum of 4 nodes to avoid an availability and performance impact when nodes become unavailable—for example, during software upgrades (maintenance mode).

    When sizing a VxRail cluster for SAP HANA, consider having enough free resources (standby nodes) available for smooth upgrades or for situations where VMware HA must migrate VMs to available nodes if a VxRail node fails.

    The following table shows our sizing recommendations for a VxRail cluster for SAP HANA:

    Table 3.              Recommended VxRail standby nodes

    Number of VxRail nodes required for SAP HANA

    Recommended number of additional standby nodes

    3–7

    1

    8–14

    2

    15–21

    3

    22–28

    4

    29–35

    5

    36–42

    6

    43–49

    7

    50–56

    8