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 CHAPsecret. |
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. |
IB |
InfiniBand (IB) is a communications standard for data transmission between high-performance servers and storage systems. |
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. |
iSER |
iSCSI Extensions for RDMA (iSER) is a protocol that extends the iSCSI protocol for operation over RDMA transports, such as InfiniBand or Ethernet. |
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. |