HP MSA Events Description Reference Guide (762785-001, March 2014)

74 Glossary
complex
programmable logic
device
See CPLD.
Configuration
Application
Programming Interface
See CAPI.
controller A (or B) A short way of referring to controller module A (or B).
controller enclosure An enclosure that contains one or two controller modules.
controller module A FRU that contains the following subsystems and devices: an SC processor; an MC
processor; a SAS expander and an EC processor; management interfaces; cache protected
by a supercapacitor pack and nonvolatile memory (CompactFlash); host, expansion,
network, and service ports; and midplane connectivity. In a controller enclosure, the upper
controller module is designated A and the lower one is designated B.
converged network
controller
A controller module whose host ports can be set to operate in FC or iSCSI mode.
Changing the host-port mode is also known as changing the ports’ personality.
Coordinated Universal
Time
See UTC.
CPLD Complex programmable logic device. An electronic component used to build
reconfigurable digital circuits. It can replace large numbers of logic gates.
CQL CIM Query Language.
CRC Cyclic Redundancy Check. A mathematical algorithm that, when implemented in software
or hardware, can be used to detect errors in data.
CSV Comma separated values. A format to store tabular data in plain-text form.
Cyclic Redundancy
Check
See CRC.
DAS Direct Attached Storage. A dedicated storage device that connects directly to a host without
the use of a switch.
Data Encryption
Standard
See DES.
dedicated spare A disk that is reserved for use by a specific vdisk to replace a failed disk. See also
available disk, compatible disk, dynamic spare, and global spare.
default mapping Host-access settings that are configured when a volume is created, and that apply to all
hosts that are not explicitly mapped to that volume using different settings. See also explicit
mapping and masking.
DES Data Encryption Standard. An algorithm for the encryption of electronic data.
DHCP Dynamic Host Configuration Protocol. A network configuration protocol for hosts on IP
networks.
Direct Attached
Storage
See DAS.
Distributed
Management Task
Force
See DMTF.
DMTF Distributed Management Task Force. An industry organization that develops and maintains
standards for system management.
drive enclosure An enclosure that contains one or two expansion modules. Drive enclosures can be
connected to a controller enclosure to provide additional storage capacity.
drive spin down See DSD.
DRM Disaster recovery management. Storage-system firmware features that, when the Site
Replication Adapter (SRA) feature is enabled, support the use of VMware’s Site Recovery
Manager to automate disaster-recovery failover and failback tasks. See also SRA.