It appears you have used that disk in the past as part of a fakeraid array and the sil signature is still present on the drive. If you no longer wish to use the drive as part of a fakeraid array you need to delete the raid array in the raid bios, or run dmraid -E /dev/sdb to erase the signature from the drive.
It appears you have used that disk in the past as part of a fakeraid array and the sil signature is still present on the drive. If you no longer wish to use the drive as part of a fakeraid array you need to delete the raid array in the raid bios, or run dmraid -E /dev/sdb to erase the signature from the drive.