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DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.0)
Glossary
Hot swap Hot swapping is the term used for manually swapping a failed disk unit
with a replacement while the EF2800 Subsystem is in normal use.
Hz (Hertz) a frequency measurement unit used internationally to indicate cycles
per second.
in-band Method of accessing and managing the SM controller or EF2800
Subsystem using the SCSI or FC host connection. This type of access is
available using CAPI to develop a programmed interface.
Initialize To prepare a hardware device for use.
Initiator An initiator is an FC or SCSI device that contains application clients
that originate service requests and task management functions for
processing by a target FC or SCSI device.
initiator mode Initiator mode is the configuration mode of a device in which an FC or
SCSI initiator requests operations to be performed by an FC or SCSI
target device.
Kill In Active-Active mode, one controller can kill the other controller by
resetting it and taking it offline.
LED Light Emitting Diode. A small light displayed on the cabinet, disk units
and power supply units.
Logical Unit
Number or
Logical Unit
(LUN)
A LUN is a subdivision of a SCSI target. For SCSI-3, each SCSI target
supports up to 128 LUNs. An FC host using LUNs can address multiple
peripheral devices that may share a common controller.
loop address Loop address is an FC term that indicates the unique ID of a node in FC
loop topology. A loop address is sometimes referred to as a Loop ID.
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