iSCSI terminology
Learn how the iSCSI terms apply to your storage array.
| Term | Description |
|---|---|
| CHAP | The Challenge Handshake Authentication Protocol (CHAP) method validates the identity of targets and initiators during the initial link. Authentication is based on a shared security key called a CHAP secret . |
| Controller | A controller consists of a board, firmware, and software. It controls the drives and implements the System Manager functions. |
| DHCP | Dynamic Host Configuration Protocol (DHCP) is a protocol used on Internet Protocol (IP) networks for dynamically distributing network configuration parameters, such as IP addresses. |
| ICMP PING response | Internet Control Message Protocol (ICMP) is a protocol used by operating systems of networked computers to send messages. ICMP messages determine whether a host is reachable and how long it takes to get packets to and from that host. |
| IQN | An iSCSI Qualified Name (IQN) identifier is a unique name for an iSCSI initiator or iSCSI target. |
| iSNS | Internet Storage Name Service (iSNS) is a protocol that allows automated discovery, management, and configuration of iSCSI and Fibre Channel devices on TCP/IP networks. |
| MAC address | Media access control identifiers (MAC addresses) are used by Ethernet to distinguish between separate logical channels connecting two ports on the same physical transport network interface. |
| Management client | A management client is the computer where a browser is installed for accessing System Manager. |
| MTU | A Maximum Transmission Unit (MTU) is the largest size packet or frame that can be sent in a network. |
| RDMA | Remote Direct Memory Access (RDMA) is a technology that allows network computers to exchange data in main memory without involving the operating system of either computer. |
| Unnamed discovery session | When the option for unnamed discovery sessions is enabled, iSCSI initiators are not required to specify the target IQN to retrieve the controller's information. |
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