COSC 2610 Data Stripping Concepts and Access Time Work Sheet Given 4 integer numbers : nl, n2, n3, n4. Given the followi
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COSC 2610 Data Stripping Concepts and Access Time Work Sheet Given 4 integer numbers : nl, n2, n3, n4. Given the followi
COSC 2610 Data Stripping Concepts and Access Time Work Sheet Given 4 integer numbers : nl, n2, n3, n4. Given the following configuration and performance facts of a hard drive: This hard drive has 2 platters (disks. Data stored on both faces). Each platter has 2 W/R head. One on surface face and one on bottom face: 5 ms for W/R head to move from one track to an adjacent track. 1 ms for rotating from one sector to another sector under W/R head. Total sectors on disk: 7. Transfer rate 0.00094 per byte. 1. Using RAID LEVEL O concept (striping) to store nl, n2, n3, and n4. Store nl on Face 1, Track 2 and Sector 3 Store n2 on Face 2, Track 2 and Sector 3 Store n3 on Face 3, Track 2 and Sector 3 Store n4 on Face 4, Track 2 and Sector 3 Currently head is on Track 2, Sector 2. What is total time to access those 4 integers? 2. If store all those 4 numbers on Face 1, Track 2 (same face, same track) and store nl on Sector3, n2 on Sector4, n3 on Sector 5 and n4 on Sector6. Currently head is on Track 2, Sector 2. What is total time to access those 4 integers now? 3. If store all those 4 numbers on Face 1 (same face ) Track 2 Sector 3 Track 4 Sector 5 n3 Track 5 Sector 0 n4 Track 6 Sector 4 nl n2 Currently, head is on Track2, Sector2. What is the total time to access those 4 numbers this time?
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