Patent ID: 8145840
Filing Date: 2012-03-27
Classification: G06F

Abstract:
1. A method for storing excess data in a redundant array of independent disks (RAID) 6 volume, comprising: writing excess data to Q parity blocks of a first RAID 6 volume when a receipt of the excess data directed to the first RAID 6 volume is detected subsequent to a saturation of the first RAID 6 volume, wherein the first RAID 6 volume is converted to a pseudo-RAID 5 volume with P parity blocks; re-computing the P parity blocks of the pseudo-RAID 5 volume based on data blocks of the pseudo-RAID 5 volume; and constructing a second RAID 6 volume based on the pseudo-RAID 5 volume when at least one additional drive is inserted to the pseudo-RAID 5 volume.