3rd-Party SCSI Copy Command The 3rd-Party SCSI Copy Command is the specification for the use of the SCSI XCOPY command in order to copy blocks from one storage device to another within a storage network. This command is, for example, the basis for server-free backup.
64b/66b-encoding Variant of 8b/10b-encoding used for 10-Gigabit networks with various cable types.
8b/10b encoding An encoding procedure that converts an 8-bit data byte sequence into a 10-bit transmission word sequence that is optimised for serial transmission. The 8b/10b encoding is used, for example, for Fibre Channel, Gigabit Ethernet and InfiniBand.
Access control The granting or refusal of a request for access to services or resources based upon the identity of the requester.
Access path Descriptively defined as the list of components that are run through by read and write operations to the storage devices and responses to them.
ACL An access control list (ACL) allows the control of access rights in a computer system. The control of the access is usually based on a user name or on groups and grants certain rights, such as permission to read or change a file.
Active An active configuration means a component that is not designed with built-in redundancy.
Active/active An active/active configuration describes a component designed with built-in redundancy, in which both subcomponents are used in normal operation. We differentiate between active/active configurations with and without load sharing.