Adaptec 29320A-R User Guide - Page 199

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. SCSI ID The number assigned to each SCSI device attached to a SCSI bus. See also bus; disk ID. 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. Glossary-6