written. RAID 6 extends RAID 5 by adding a second parity block; thus, it uses block-level striping with two parity blocks distributed across all member
Block VI and 5 in Block VII, largely due to the delays experienced with the "Improved Virginia". These 20 submarines (10 Block V, 5Block VI, 5Block VII)
initial production variants. These variants include the Block 1, 5, 10, 15, and 20 versions. Block 15 was the first major change to the F-16 with larger