This glossary offers a list of terms and definitions to define a vocabulary for Cinder concepts.

Logical Volume Manager (LVM)

Provides a method of allocating space on mass-storage devices that is more flexible than conventional partitioning schemes.

iSCSI Qualified Name (IQN)

IQN is the format most commonly used for iSCSI names, which uniquely identify nodes in an iSCSI network. All IQNs follow the pattern iqn.yyyy-mm.domain:identifier, where ‘yyyy-mm’ is the year and month in which the domain was registered, ‘domain’ is the reversed domain name of the issuing organization, and ‘identifier’ is an optional string which makes each IQN under the same domain unique. For example, ‘’.