Method and apparatus for file system

An apparatus for managing a file system, the apparatus including a processor constructed and arranged to:

• provide a file system that includes (i) a first logical storage area having a first logical block size and (ii) a second logical storage area having a second logical block size different from the first logical block size;
• in response to a request to create a file, select one of the first logical storage area and the second logical storage area for storing the file;
• store the logical block size of the selected logical storage area in metadata associated with the file;
• and
• store the file in the selected logical storage area, the processor further constructed and arranged to (i) identify a location for storing the file in the selected logical storage area, (ii) allocate a physical storage block with a corresponding size from a physical storage pool, (iii) write contents of the file into the physical storage block, and (iv) store, in a super block of the file system, a mapping table for recording a relationship between the logical storage area and the physical storage block.

A computer program product including a set of non-transitory, computer-readable media having instructions which, when executed by one or more processors, cause the one or more processors to perform a method of managing a file system, the method comprising:

• providing a file system that includes (i) a first logical storage area having a first logical block size and (ii) a second logical storage area having a second logical block size different from the first logical block size;
• in response to a request to create a file, selecting one of the first logical storage area and the second logical storage area for storing the file;
• storing the logical block size of the selected logical storage area in metadata associated with the file;
• and
• storing the file in the selected logical storage area, including identifying a location for storing the file in the selected logical storage area, allocating a physical storage block with a corresponding size from a physical storage pool, writing contents of the file into the physical storage block, and storing, in a super block of the file system, a mapping table for recording a relationship between the logical storage area and the physical storage block.