Assignment 2: RAID-RDP questions The following table represents an 8-drive-wide RAID-RDP volume. The volume is degraded with two failed drives: D1 and D2. Question 1: Write down the order in which data blocks can be recreated. Question 2: Write down the reconstructed values. Mark the table with the order, XOR calculation, and reconstructed value. Also enter the answers in the "Text Submission" box, following the format described in the "CS797K. How to do RAID Assignments" Word document. DD1 D2D3 D4 DSPDP C 766935 16952A 8 D F 36A c C 5811 D 87E5D B 6625F Interestingly enough, not all RAID-RDP volumes work. If we build a 5-drive-wide volume, for instance: D0D1 D2P DP 01230 30121 23012. And we fail Data or P drives that are 2 slots apart from each other, we cannot rebuild the data successfully Question 3: Try it: Reconstruct this volume as much as you can, using " X " to mark blocks that cannot be reconstructed. Write down the order in which you reconstructed the data Question 4: Write down the reconstructed Data Mark the answers in the table below, and enter them in the "Text Submission" box as per the recommended format. DeD1 D2P DP C76935 16852A 8 D 8 3 6A C C C 5811 D 87 E 5D 4B662F Interestingly enough, not all RAID-RDP volumes work. If we build a 5-drive-wide volume, for instance: DeD1 D2 P DP And we fail Data or P drives that are 2 slots apart from each other, we cannot rebuild the data successfully Question 3: Try it: Reconstruct this volume as much as you can, using " X " to mark blocks that cannot be reconstructed. Write down the order in which you reconstructed the data Question 4: Write down the reconstructed Data Mark the answers in the table below, and enter them in the "Text Submission" box as per the recommended format. De D1 D2P DP 020 Other RAID-RDP 'widths' that cannot successfully rebuild certain double-drive failure combinations include: 7 drives, 9 drives, 10 drives, 11 drives, 13 drives, 15 drives, 16 drives, and so on. Question 5: Why don't these volume widths work? NOTE: you get a point for answering this question with *anything*, whether it is correct or not. If you do get the correct answer, keep it secret for now, all will become clear soon enough
