Compaq 4200 User Manual page 84

Glossary–8 Compaq StorageWorks Enclosure 4200 Family LVD Disk Enclosures User Guide
SCSI ID
SCSI port
single power
configuration
single-ended SCSI bus
slot
small computer system
interface
spin-down
spin-up
split bus
storage array
storage carrier
storage sets
storage subsystem
storage subsystem high
availability fault bus
(1.) The bit-significant representation of the SCSI addressing referring to
one of the signal lines numbered 0 through 7 for an 8-bit bus or 0 through
15 for a 16-bit bus. Also referred to as "target ID". (2.) The unique device
identification number assigned to each target or initiator on a single SCSI
bus. The valid address range for a wide bus is 0 through 15.
(1) Software: The channel that controls communications to and from a
specific SCSI bus in the system. (2) Hardware: The name of the logical
socket at the back of the system unit to which a SCSI device is connected.
A cabinet or rack AC power configuration in which there is only one AC
power source or power conditioning device (such as a CDU or PDU) to
distribute AC power.
A bus in which each signal's logic level is determined by the voltage of a
single wire in relation to ground. Also referred to SE.
See bay.
See SCSI
The process that begins when power is removed from a storage drive and
data transfer stops, and ends when the drive is stopped and can be moved.
In the case of disk drives, the heads are retracted and the media is
stopped.
The process that begins when power is applied to a storage drive, and
ends when the drive is determined to be operational and ready for data
transfer operations.
See dual bus.
An integrated set of storage devices.
See carrier.
A grouping of disk drives that make up a new distinct container.
The controllers, storage devices, enclosures, cables, and power supplies
that form a mass storage subsystem.
See fault bus.