In this paper

we propose and investigate a new method

the Interval Management Method （IMM）

to manage disk storage space

The new method

in which disk storage space is treated as a set of continuous blocks’ intervals

allocates continuous disk free blocks in physical location to each write-request

which supports high-speed access to disks.We have designed the allocating and recollecting algorithms for IMM.We also verify IMM through simulation.The simulative results show that IMM is an efficient management method for disk storage space.