Terminology

Terms that are most commonly used for the command-line interface (CLI) operations.

Table 1 shows the terms and offers a brief description.

Table 1. Abbreviations
Name	Object type
Host	Refers to a single host.
Host cluster	Refers to a host cluster (which is part of a server that shares a set of volumes).
Host object	Refers to a list of worldwide port names WWPNs and iSCSI names.
Volume copy	Referred to as `vdiskcopy`.
Thin-provisioned volume copy	Referred to as `sevdiskcopy`.
Managed disk (MDisk)	Referred to as MDisk.
MDisk group or storage pool	Referred to as storage pool.
I/O group	Referred to as `iogrp`.
Node, node canister, enclosure	Refers to node or node canister or enclosure, depending on the system.
Clustered system (system) or cluster	Referred to as system.
VDisk or volume	Referred to as volume.
Controller	Refers to a controller that is part of a clustered system.
IBM® FlashCopy® mapping	Referred to as `fcmap`.
IBM FlashCopy consistency group	Referred to as `fcconsistgrp`.
Metro Mirror or Global Mirror relationship	Referred to as `rcrelationship`.
Metro Mirror or Global Mirror consistency group	Referred to as `rcconsistgrp`.
HyperSwap® mirroring consistency group	Referred to as `hyperswap`.
Unsupported/unknown object	unknown