Dell S5248F-ON VxFlex Network Deployment Guide using EMC Networking 25GbE swit - Page 14

3.2 IP addressing Dell EMC VxFlex MDMs, SDSs, and SDCs can have multiple IP addresses and can reside on more than one network. Multiple IPs provide options for load balancing and redundancy. VxFlex natively provides redundancy and load balancing across physical network links when an MDM or SDS is configured to send traffic across multiple links. In this configuration, each interface available to the MDM or SDS is assigned an IP address, each in a different subnet. Accounting for the management network and two data networks, each VxFlex node needs seven IPs with the VMware vMotion network being optional: • iDRAC Management - Used for administrative management of the VxFlex node through the iDRAC interface • ESXi Management - Used to connect the host to vCenter and management. • ESXi vMotion - Used to migrate virtual machines between ESXi hosts (optional) • SVM Management - Used for administrative management of the SVM installed on each host • Data Network 1 SVM - Used by the SVM to access Data Network 1 • Data Network 1 SDC - Used by ESXi as a VMkernel IP for data access to Data Network 1 • Data Network 2 SVM - Used by the SVM to access Data Network 2 • Data Network 2 SDC - Used by ESXi as a VMkernel IP for data access to Data Network 2 Note: Multiple IP subnets used for the VxFlex OS data network cannot be on the same subnet in a VMware setup. VxFlex OS only supports the following network configurations when deployed on VMware: * A single data storage network * Two or more data networks, each on separate IP subnets * A single IP data network using several NIC-bonding configurations, or vSwitch load balancing For more information, see the VMware limitation in the following Vmware Knowledge Base article: Multihoming on ESXi/ESX. Table 2 and Table 3 show how to calculate the IP address requirements. To accommodate expansion each address pool is assigned a dedicated subnet. Item VMware and management IP network calculations Description N Number of nodes IP address pools The pools of IP addresses used for the following groups: ESXI_MGMT_IP = Management IP addresses ESXI_VMOTION_IP = ESXi vMotion IP addresses HOST_AND_SVM_MGMT_IP = SVM management IP addresses IDRAC_MGMT_IP = iDRAC IP address for each node The formula to calculate IP address subnet pool or subnet needs is: N * ESXI_MGMT_IP + N * ESXI_VMOTION_IP + N * Host and SVM_MGMT_IP + N * IDRAC_MGMT_IP 14 VxFlex Network Deployment Guide using Dell EMC Networking 25GbE switches and OS10EE