Patent ID: 8112607

Claim:
A relational database management system, comprising: a first space allocation module configured to allocate storage space in pages of a first size, the first space allocation module having (i) a converter module configured to use a converter map to map logical pages to physical pages, and (ii) a free block manager configured to manage the allocation status of each page of the first size, the physical pages of the first size being allocated in one or more volumes dedicated for use by the first space allocation module; and a second space allocation module configured to allocate storage space in pages of a second size greater than the first size, the second space allocation module having (i) an object directory manager configured to use an object directory table to map object containers to physical pages of the second size, and (ii) a free block manager configured to manage the allocation status of each page of the second size, the physical pages of the second size being allocated in one or more volumes dedicated for use by the second space allocation module.