The invention discloses a storage pool building method and system. The method comprises the steps that a storage environment is set up; LUN mapping is created, and a host scans LUN mapping to conduct initialization; management service of a storage pool is conducted by means of sanlock service and agent service; a storage pool command is created by means of LVM, a corresponding physical volume and volume group are created for each LUN separately, the LUNs are in one-to-one correspondence with the LVM storage pools, a logical volume is created, and lockspace of the sanlock service is initialized according to an incoming path of the logical volume; a lightweight storage pool building method is achieved; for storage virtualization, hardware resource storing is shown in an abstraction mode, scattered storage spaces are integrated, and partition and distribution are conducted again to meet the requirements of different applications on performance and capacity. Meanwhile, data security of backup of stored data, failure recovery and the like can be planed uniformly.