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.