// findDiskIndex - returns the i,j'th position of the input `diskID` against the reference
// format, after successful validation.
//   - i'th position is the set index
//   - j'th position is the disk index in the current set
func findDiskIndexByDiskID(refFormat *formatErasureV3, diskID string) (int, int, error) {
	if diskID == "" {
		return -1, -1, errDiskNotFound
	}
	if diskID == offlineDiskUUID {

					i, j, reference.Erasure.Sets[i][j], format.Erasure.Sets[i][j], errInconsistentDisk)
			}
		}
	}

	// Make sure that the diskID is found in the set.
	for i := 0; i < len(tmpFormat.Erasure.Sets); i++ {
		for j := 0; j < len(tmpFormat.Erasure.Sets[i]); j++ {
			if this == tmpFormat.Erasure.Sets[i][j] {
				return nil
			}
		}
	}

	for poolIdx := range z.serverPools {
		format := z.serverPools[poolIdx].format
		for setIdx, set := range format.Erasure.Sets {
			for i, diskID := range set {
				if diskID == id {
					return poolIdx, setIdx, i, nil
				}
			}
		}
	}
	return -1, -1, -1, fmt.Errorf("DriveID(%s) %w", id, errDiskNotFound)
}

const (
	vmware = "VMWare"