Data obtaining method and apparatus

A method for obtaining data from disks when an ultra-redundant bad disk occurs, wherein the method comprises:

• determining address information of data to be obtained stored in a disk;
• judging whether a disk corresponding to the address information of the data to be obtained stored in a disk is a damaged disk or not;
• if the disk corresponding to the address information of the data to be obtained stored in a disk is not a damaged disk, obtaining the data to be obtained stored in a disk according to the address information of the data to be obtained stored in a disk to obtain current data;
• if the disk corresponding to the address information of the data to be obtained stored in a disk is a damaged disk, determining address information of next data to be obtained stored in a disk, and returning to the step of judging whether a disk corresponding to the address information of the data to be obtained stored in a disk is a damaged disk or not.