Before deploying AX nodes, complete the required predeployment configuration tasks.
Complete the following predeployment configuration before deploying the Azure Stack HCI solution.
Note: If the cluster has persistent memory devices, pre-operating-system deployment configuration as well as post-operating-system deployment configuration is required. For more information, see Appendix: Persistent Memory for Azure Stack HCI.
Based on the selected network topology, configure the top-of-rack (ToR) network switches to enable storage and VM/management traffic.
Note: The switchless storage networking deployment model requires configuration of switches that are deployed for host management and OOB traffic only. Storage traffic uses full mesh connectivity between the nodes.
Note: Management network redundancy is a combination of either iDRAC or operating system DNS/IP resolution. Dell recommends that you deploy a network topology that supports a dual control plane while sharing a single data plane. Virtual Link Trunking (VLT) is Dell Technologies proprietary technology that provides network resiliency for data I/O.
Configuring switch VLT redundancy with Virtual Router Redundancy Protocol (VRRP) provides a virtual floating IP address that any node can reference as a gateway. If a switch fails, the virtual IP is transferred to a peer switch. VRRP is an active/standby first-hop redundancy protocol (FHRP). When used with VLT peers, VRRP becomes an active/active protocol. The VRRP virtual MAC address is the local destination address in the FIB table of both the VLT peers. Using this method, the backup VRRP router forwards intercepted frames whose destination MAC address matches the VRRP virtual MAC address.
A standard Storage Spaces Direct deployment requires three basic types of networks—out-of-band (OOB) management, host management, and storage. The number of network ports (two or four) that are used within the storage configuration determines whether you have two or four fault domains.
For sample switch configurations, see https://infohub.delltechnologies.com/t/sample-network-switch-configuration-files-2/.
For configuration choices and instructions about different network topologies and host network configuration, see https://infohub.delltechnologies.com/section-assets/network-integration-and-host-network-configuration-options.
The AX nodes are factory-configured with optimized system BIOS and integrated Dell Remote Access Controller (iDRAC) settings. This preconfiguration eliminates the need for you to manually configure the settings to a recommended baseline.
The iDRAC in AX nodes can be configured to obtain an IP address from DHCP or can be assigned a static IP address. When the OOB network in the environment does not provide DHCP IP addresses, you must manually set a static IPv4 address on each iDRAC network interface. You can access the physical server console to set the addresses by using KVM or other means.
Perform these steps to configure the IPv4 address for iDRAC. You can also follow these steps to configure any additional BIOS settings.
The QLogic FastLinQ 41262 network adapter supports both iWARP and RoCE.
When used with the QLogic network adapters, the AX nodes are validated only with iWARP. Manually configure the adapter to enable iWARP based on the chosen network configuration.
Configure the QLogic network adapter for each port.