Configuration limits for FC, FCoE, and iSCSI configurations
Configuration limits are available for FC, FCoE, and iSCSI configurations. In some cases, theoretical limits might be higher, but the published limits are tested and supported.
Determining the number of supported hosts per cluster in FC and FC-NVMe configurations
The maximum number of SAN hosts that can be connected to a cluster varies greatly based upon your specific combination of multiple cluster attributes, such as the number of hosts connected to each cluster node, initiators per host, sessions per host, and nodes in the cluster.
Determining the supported number of hosts in iSCSI configurations
The maximum number of SAN hosts that can be connected in iSCSI configurations varies greatly based on your specific combination of multiple cluster attributes, such as the number of hosts connected to each cluster node, initiators per host, logins per host, and nodes in the cluster.
FC switch configuration limits
Fibre Channel switches have maximum configuration limits, including the number of logins supported per port, port group, blade, and switch. The switch vendors document their supported limits.
Calculating queue depth You might need to tune your FC queue depth on the host to achieve the maximum values for ITNs per node and FC port fan-in. The maximum number of LUNs and the number of HBAs that can connect to an FC port are limited by the available queue depth on the FC target ports.