Ecila meets the White Knight and goes to gather herself

• When handling a read request - the data could be stored in different locations.
• Part of the data might be in the cache.
• Part of it might need to be retrieved from the disk.
• We might have them in a "zebra" pattern:
  

  page1	page2	page3	page4
  cache	disk	cache	disk

• Thus, a read request might generate several different read requests, to different parts of the disk.

Originally written by guy keren