Compaq StorageWorks 4000 - RAID Array Guia do Utilizador descarregar pdf (Página 110)

Running the Array Configuration Utility

The Accelerator Ratio determines the amount of memory allocated to the read

and write caches. Some applications may perform better with a larger write

cache while others may perform better with a larger read cache.

In this screen, all available drives attached to the selected controller are

displayed on the left. Drives assigned to the current array appear on the right.

A port number and SCSI ID identify each physical drive.

To create an array, select the drive or drives to be part of the array, then press

the Assign Drives to Array (top) button. You can also select drives and drag

them to the array. To assign a spare, select the drive to be the spare and then

click the Assign Spare to Array (bottom) button.

Always group physical drives of the same size. If you mix drive sizes, the

RA4000 treats all the drives as the same size as the smallest drive in the array.

This results in wasted capacity in the larger drives.

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Compaq StorageWorks 4000 - RAID Array Guia do Utilizador Página 110