Compaq 3100ES - Smart Array RAID Controller Guia do Utilizador descarregar pdf (Página 120)

Understanding Drive Arrays D-11

Concurrent I/O Request Servicing

The Smart Array 431 Controller has the capability to service hundreds of I/O

requests at a time. For example, if you request data that resides on the first

drive and another user requests data that resides on the second drive, the

controller can deliver both pieces of information concurrently. Figure D-8

illustrates concurrent request servicing.

User 1

Request

User 2

Request

User 3

Request

User 4

Request

Figure D-8. Concurrent Request Servicing handles several I/O requests

Optimized Request Management

Optimized request management, also known as elevator trend sorting, is

another performance enhancement feature provided by the Smart Array 431

Controller. The controller receives and queues multiple data requests from the

operating system. The controller then rearranges the requests in an order that

optimizes performance.

Consider the following example. The Smart Array 431 Controller receives a

request for a physical drive that is not currently active. The controller

schedules the request immediately ahead of previously received requests

already queued to other active drives within the array. This request

management process operates concurrently with drive operations. The benefits

of optimized request management increase as greater demands are made on the

drive subsystem.

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 161 162

Sem comentários

Modelle	Dokumententyp
NH322AA	Datenblatt HP LD4200, 2 Seiten
LD4235 41.92-inch LED Digital Signage Display	Bedienungsanleitung HP LD4235 41.92-inch LED Digital Signage Display User manual, 111 Seiten
LD5535 55-inch LED Digital Signage Display	Bedienungsanleitung User Guide [en] , 106 Seiten

Compaq 3100ES - Smart Array RAID Controller Guia do Utilizador Página 120