| Subject | Portuguese | English |
| comp., MS, Braz. | bitmap do volume | volume bitmap (A stored reference (which may exist both on hierarchical directory volumes and in memory) to every piece of data that is in the allocation blocks and indicates whether the block is allocated or free for use) |
| comp., MS, Braz. | Descritor de Bitmap de Espaço | Space Bitmap Descriptor (A bitmap describing the utilization of blocks allocated to a metadata partition) |
| comp., MS, Braz. | Descritor de Bitmap de Espaço, SBD | SBD (A bitmap describing the utilization of blocks allocated to a metadata partition) |