FormatGNU

	// Schily's tar format, which is incompatible with USTAR.
	// This does not cover STAR extensions to the PAX format; these fall under
	// the PAX format.
	formatSTAR

	formatMax
)

func (f Format) has(f2 Format) bool   { return f&f2 != 0 }
func (f *Format) mayBe(f2 Format)     { *f |= f2 }
func (f *Format) mayOnlyBe(f2 Format) { *f &= f2 }
func (f *Format) mustNotBe(f2 Format) { *f &^= f2 }

			t.Fatal(err)
		}
	}

	format := newFormatErasureV3(1, 8)
	format.Erasure.DistributionAlgo = formatErasureVersionV2DistributionAlgoV1
	formats := make([]*formatErasureV3, 8)

	for j := 0; j < 8; j++ {
		newFormat := format.Clone()
		newFormat.Erasure.This = format.Erasure.Sets[0][j]
		formats[j] = newFormat
	}

	formats[1] = nil
	expThis := formats[2].Erasure.This
	formats[2].Erasure.This = ""

	format := &formatErasureV3{}
	format.Version = formatMetaVersionV1
	format.Format = formatBackendErasure
	if setLen == 1 {
		format.Format = formatBackendErasureSingle
	}
	format.ID = mustGetUUID()
	format.Erasure.Version = formatErasureVersionV3
	format.Erasure.DistributionAlgo = formatErasureVersionV3DistributionAlgoV3
	format.Erasure.Sets = make([][]string, numSets)

		case "Version":
			z.Version, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Version")
				return
			}
		case "Format":
			z.Format, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Format")
				return
			}
		case "Stat":
			err = z.Stat.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Stat")
				return
			}

Klaus Post <******@****.***> 1637266522 -0800

Krishnan Parthasarathi <******@****.***> 1618853442 -0700

Klaus Post <******@****.***> 1709920248 +0100

		return nil, errFirstDiskWait
	}

	format, err = getFormatErasureInQuorum(formatConfigs)
	if err != nil {
		var drivesNotFound int
		for _, format := range formatConfigs {
			if format != nil {
				continue
			}
			drivesNotFound++
		}
		return nil, fmt.Errorf("%w (offline-drives=%d/%d)", err, drivesNotFound, len(formatConfigs))
	}

	if format.ID == "" {

        assertEquals("0 kB", format.format(_0_bytes, ScaleUnit.KILOBYTE));
        assertEquals("0 MB", format.format(_0_bytes, ScaleUnit.MEGABYTE));
        assertEquals("0 GB", format.format(_0_bytes, ScaleUnit.GIGABYTE));

        long _5_bytes = 5L;
        assertEquals("5 B", format.format(_5_bytes));
        assertEquals("5 B", format.format(_5_bytes, ScaleUnit.BYTE));
        assertEquals("0 kB", format.format(_5_bytes, ScaleUnit.KILOBYTE));

			wantFormat.mayBe(FormatUSTAR) // PAX implies USTAR allowed too
		}
		format.mayOnlyBe(wantFormat) // Set union of formats allowed and format wanted
	}
	if format == FormatUnknown {
		switch h.Format {
		case FormatUSTAR:
			err = headerError{"Format specifies USTAR", whyNoUSTAR, whyOnlyPAX, whyOnlyGNU}
		case FormatPAX:
			err = headerError{"Format specifies PAX", whyNoPAX, whyOnlyGNU}
		case FormatGNU: