return fmt.Errorf("Standard storage class parity drives %d should be greater than or equal to Reduced redundancy storage class parity drives %d", ssParity, rrsParity)
		}
	}
	return nil
}

// GetParityForSC - Returns the data and parity drive count based on storage class
// If storage class is set using the env vars MINIO_STORAGE_CLASS_RRS and
// MINIO_STORAGE_CLASS_STANDARD or server config fields corresponding values are

func ecDrivesNoConfig(setDriveCount int) (int, error) {
	sc, err := storageclass.LookupConfig(config.KVS{}, setDriveCount)
	if err != nil {
		return 0, err
	}
	return sc.GetParityForSC(storageclass.STANDARD), nil
}

// Initialize a new set of set formats which will be written to all disks.

	if opts.PreserveETag != "" {
		userDefined["etag"] = opts.PreserveETag
	}
	onlineDisks := er.getDisks()

	// Get parity and data drive count based on storage class metadata
	parityDrives := globalStorageClass.GetParityForSC(userDefined[xhttp.AmzStorageClass])
	if parityDrives < 0 {
		parityDrives = er.defaultParityCount
	}

	if globalStorageClass.AvailabilityOptimized() {