Prepare for multirack VxRail cluster
Prepare for multirack VxRail cluster
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A VxRail cluster can be extended beyond a single physical rack and can extend to as many as six racks. All the network addresses applied to the VxRail nodes within a single rack must be within the same subnet.
You have two options if the VxRail cluster extends beyond a single rack:
- Use the same assigned subnet ranges for all VxRail nodes in the expansion rack. This option is required if SmartFabric Services are enabled in “integrated mode” on supporting switch infrastructure.
- Assign a new subnet range with a new gateway to the VxRail nodes in the expansion racks.
The following two conditions must be met to expand a cluster beyond a single rack with a new subnet range:
- Your VxRail cluster must be running version 4.7.300 or later
- You are not deploying VMware Cloud Foundation on the VxRail cluster
If the same subnets are extended to the expansion racks, the VLANs representing those VxRail networks must be configured on the top-of-rack switches in each expansion rack, and physical connectivity must be established. If new subnets are used for the VxRail nodes and management components in the expansion racks, the VLANs will terminate at the router layer, and routing services must be configured to enable connectivity between the racks.
Figure 39. Multirack VxRail sharing the same subnet
Figure 40. Multirack VxRail with different subnets