Hp StorageWorks 1500cs Modular Smart Array Uživatelský manuál stáhnout pdf (Strana 60)

Drive arrays and fault-tolerance methods 60

Drive arrays and fault-tolerance methods

In this section

Drive arrays........................................................................................................................................... 60

Fault-tolerance methods........................................................................................................................... 62

Drive arrays

The capacity and performance of a single physical (hard) drive is adequate for home users. However,

business users demand higher storage capacities, higher data transfer rates, and greater protection

against data loss when drives fail.

Connecting extra physical drives (Pn in the figure) to a system increases the total storage capacity but has

no effect on the efficiency of read/write (R/W) operations. Data can still be transferred to only one

physical drive at a time.

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