3PAR InForm® OS 2.2.4 Concepts Guide (320-200085 Rev B, March 2009)

GL 5
Glossary
InForm OS Version 2.2.4 3PAR InForm OS Concepts Guide
disk port
See initiator port.
disk scrub
An action by the system that periodically reads
and writes to the system IDE disk to ensure that
the disk is working properly.
dmag
See drive magazine.
drive bay
A space in a drive chassis into which a drive
magazine is inserted.
drive cage
See DC2, DC3, and DC4 drive cage.
drive cage FCAL module
An interface module, located in a drive chassis,
connecting a drive cage to a controller node or
to another drive cage.
drive chassis
Enclosure that takes up 4U of an EIA-standard
rack, used for housing the drive cage(s).
drive chassis cabinet
In a multi-cabinet storage server, any cabinet
that is connected to a node cabinet but does not
contain controller nodes.
drive chassis housing
The enclosure that houses the components of a
drive chassis.
drive magazine
An electronic circuit board mounted on a
mechanical structure that is inserted into a drive
bay in a drive cage. A drive magazine holds up to
four physical disks.
drive magazine filler panel
A panel used to seal off an empty drive bay. All
slots in a drive cage must be sealed for EMI and
airflow considerations.
drive mount
A metal bracket used to secure a physical disk to
a drive magazine. Each disk requires two drive
mounts.
E
enclosure services interface
Interface on the DC2 and DC4 drive cages
through which the node software communicates
to the cage enclosure services controller to
obtain status and control the cage behaviors.
event
A normal system occurrence.
ESI
See enclosure services interface.
export
To make a virtual volume available to a
particular instance of a host (that is, a host WWN
that is actually present on a port) by creating an
association between the name of the virtual
volume and a LUN for that host on that port. See
also LUN, VLUN, and VLUN template.
F
FCAL
Stands for Fibre Channel-Arbitrated Loop. FCAL
is a fast serial bus interface standard used to
connect storage devices to servers.
FCAL module
See drive cage FCAL module.