| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently reduce deviation of an erasure count of a flash memory.SOLUTION: A storage system 100 including a number of flash packages 230 has functions of: reducing deviation of an erasure count of each block within the flash packages 230; capacity virtualization in block unit; and calculating the erasure count and data share of respective flash packages 230 and moving data among flash packages 230 on the basis of the value of the erasure count and the data share. Because of the functions, deviation of the erasure count and data storage capacity are efficiently reduced in the overall storage system 100.</p> |
