Patent ID: 6993677

Claim:
A method of verifying data in a RAID system, comprising: writing an item of data to a first data storage device, a second data storage device, and a third data storage device simultaneously, the item of data being stored as a first item of data of the first data storage device, a second item of data of the second data storage device, and a third item of data of the third data storage device, the first data storage device, the second storage device and the third storage device being included within a redundant array of inexpensive disks (RAID) system; reading the first item of data from the first data storage device and the second item of data from the second data storage device; and comparing the first item of data from the first storage device with the second item of data from the second storage device; transferring a matching item of data to a requestor when the first item of data matches the second item of data; reading the third item of data only when the first item of data and the second item of data do not match, wherein the third item of data is compared with at least one of the first item of data and the second item of data.