Compaq ProLiant 7000 SMART-2DH Array Controller Reference Guide - Page 148
Concurrent I/O Request Servicing, Optimized Request Management
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D-15 Concurrent I/O Request Servicing SMART-2DH 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-9 illustrates concurrent request servicing. User 1 Request User 2 Request User 3 Request User 4 Request Daz-9-10.EPS Figure D-9. 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-2DH 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. SMART-2DH Array Controller Reference Guide Writer: Pamela King Project: SMART-2DH Array Controller Reference Guide Comments: 295469-002 File Name: K-APPD.DOC Last Saved On: 2/27/98 12:06 PM COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED