(1) (
Enterprise
Storage
Management) Managing the online, nearline and offline storage within a large company. ESM includes analysis of storage requirements as well as making routine copies of files and databases for backup, archiving, disaster recovery, hierarchical storage management (HSM) and testing purposes. See
SAN and
HSM.
(2) (
Enterprise
Systems
Management) Systems management within a large company. See
systems management.
(3) (
Enterprise
Security
Management) Security management within a large company. See
computer security.