Functionality of base file system:
- Test basic support for small files.
1	sm-create
2	sm-full
2	sm-random
2	sm-seq-block
3	sm-seq-random

- Test basic support for large files.
1	lg-create
2	lg-full
2	lg-random
2	lg-seq-block
3	lg-seq-random

- Test synchronized multiprogram access to files.
4	syn-read
4	syn-write
2	syn-remove