| 1: | Your have an application that performs a significant number of random IO throughout the database. Why would a RAID 0 volume not necessarily improve the IO performance of the application? |
| 2: | Give at least one reason why RAID solutions where parity data is stored on a single disk are not commonly used currently. |
| 3: | Calculate the parity data, using an XOR truth table, for the following six disk + one parity disk RAID volume. | Data | | 1 | 1 | | | 1 | 1 | 1 | | Data | 1 | 1 | | | | | | 1 | | Data | 1 | | 1 | | | 1 | 1 | | | Data | 1 | | 1 | 1 | | | 1 | | | Data | | | | 1 | | 1 | | | | Data | 1 | 1 | | 1 | | | 1 | | |
| 4: | RAID 3 and RAID 4 both utilize a single parity disk. When data in the RAID volume is being modified, it can be seen that RAID 3 offers poorer performance than RAID 4. Explain why this is so. |