Dell Adaptec U320 SCSI Raid 0 or 1 Controller Card Uživatelský manuál stáhnout pdf (Strana 49)

The ability of a system to keep working in the event of hardware or software faults. Fault tolerance is usually achieved

by duplicating key components of the system.

fault-tolerant arrays

Arrays that have duplicate components (RAID 1 and RAID 10).

Global Spare

A spare hard disk that automatically replaces a failed hard disk on any array associated with any HBA.

hard disk

A physical hard disk on a SCSI bus.

host adapter

Electronic circuitry that supports I/O to storage devices, but which does not support RAID.

HostRAID

Intelligent RAID on chip. Adaptec product that adds entry-level RAID functionality to SCSI ASICs and host bus

adapters.

hot spare

A hard drive, an array member, that is not used in day-to-day data storage but, instead, is reserved for use as a

replacement for one of the other drives in the array in the event of a failure.

initialize

Process of preparing a disk for use by the controller. When a disk is initialized, the controller records the RAID

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Dell Adaptec U320 SCSI Raid 0 or 1 Controller Card Uživatelský manuál Strana 49