Parallelism In RAID

Bit-Level Striping

• Splits the bits of each byte into multiple disks.
• For \(8\) disks, each bit \(8n+i\) is written to the \(i^{th}\) disk.

Block-Level Striping

• For \(n\) disks, block \(i\) goes to the disk \([(i\, \% \,n)+ 1]\).
• In this way, requests for different blocks can run in parallel, which will speed up a request for a large file.