Glossary-6
Adaptec Ultra320 SCSI Cards User’s Guide
S
SCSI
Stands for Small Computer System Interface. A parallel interface
standard used to connect various types of peripheral device, (such
as disk drives) to computers. Although SCSI is an ANSI standard,
it exists in several variations.
SCSI array
A group of hard disks connected to the same SCSI array controller
and accessed as a single storage unit. It is not apparent to users that
an array is actually more than one disk drive.
SCSI array controller
The electronic circuitry used to control a SCSI array.
SCSI Device ID
See
.
SCSI ID
The number assigned to each SCSI device attached to a SCSI bus.
See also
server
A computer set up to provide services used by other computers in
a network environment. Typical servers handle disk storage,
e-mail, or database functions.
SMART
Stands for Self-Monitoring Analysis and Reporting Technology.
Hard disks that support this technology continually analyze their
performance and generate an alert if they determine that the hard
disk is likely to fail in the next few hours.
spare
A disk drive that is assigned to one or more arrays and kept in
reserve in case of drive failure. A spare automatically replaces a
failed drive in an array.
stand-alone hard disk
A hard disk that is not part of an array.
stripe size
The size that is used to stripe data or parity information across the
disks in the array.
U320 UG.book Page 6 Tuesday, September 23, 2003 1:47 PM
