You can set up and configure a COMSTAR Internet SCSI (iSCSI) target and make it available over the network. The iSCSI features can work over a normal Internet connection (such as Ethernet) using the standard iSCSI protocol. The iSCSI protocol also provides naming and discovery services, authentication services using CHAP and RADIUS, and centralized management through iSNS.
If the system has at least one InfiniBand (IB) Host Channel Adapter (HCA) and connectivity exists between the initiator and the target, the iSCSI connection uses iSCSI Extensions for RDMA (iSER) for enhanced data throughput. iSER used with an IB HCA provides high bandwidth, low CPU utilization, and a single network connection that multiple protocols can share.
The iSER target and initiator both use a component called iSCSI Data Mover to provide iSCSI connection services. Use of iSER is automatic whenever both the initiator and the target are configured to use IP addresses that correspond to IB-capable devices.