}

func commonParity(parities []int, defaultParityCount int) int {
	N := len(parities)

	occMap := make(map[int]int)
	for _, p := range parities {
		occMap[p]++
	}

	var maxOcc, cparity int
	for parity, occ := range occMap {
		if parity == -1 {
			// Ignore non defined parity
			continue
		}

		readQuorum := N - parity
		if defaultParityCount > 0 && parity == 0 {

func getLatestFileInfo(ctx context.Context, partsMetadata []FileInfo, defaultParityCount int, errs []error) (FileInfo, error) {
	// There should be at least half correct entries, if not return failure
	expectedRQuorum := len(partsMetadata) / 2
	if defaultParityCount == 0 {
		// if parity count is '0', we expected all entries to be present.
		expectedRQuorum = len(partsMetadata)
	}

	closeStorageDisks(er.getDisks()...)
	return nil
}

// defaultWQuorum write quorum based on setDriveCount and defaultParityCount
func (er erasureObjects) defaultWQuorum() int {
	dataCount := er.setDriveCount - er.defaultParityCount
	if dataCount == er.defaultParityCount {
		return dataCount + 1
	}
	return dataCount
}

func diskErrToDriveState(err error) (state string) {
	switch {

		er := set.sets[0]
		erasureDisks := er.getDisks()

		fileInfos, errs := readAllFileInfo(ctx, erasureDisks, "", bucket, object, "", false, true)
		nfi, err := getLatestFileInfo(ctx, fileInfos, er.defaultParityCount, errs)
		if errors.Is(err, errFileNotFound) {
			continue
		}
		if err != nil {
			t.Fatalf("Failed to getLatestFileInfo - %v", err)
		}

		for i := 0; i < nfi.Erasure.ParityBlocks; i++ {

		erasureLockOwner:   globalLocalNodeName,
		endpoints:          endpoints,
		endpointStrings:    endpointStrings,
		setCount:           setCount,
		setDriveCount:      setDriveCount,
		defaultParityCount: defaultParityCount,
		format:             format,
		setReconnectEvent:  make(chan int),
		distributionAlgo:   format.Erasure.DistributionAlgo,
		deploymentID:       uuid.MustParse(format.ID),
		poolIndex:          poolIdx,

			tags["data"] = m.Erasure.DataBlocks
			tags["parity"] = m.Erasure.ParityBlocks
		} else {
			tags["invalid-meta"] = true
			tags["data"] = er.setDriveCount - er.defaultParityCount
			tags["parity"] = er.defaultParityCount
		}

		// count the number of offline disks
		offline := 0
		for i := 0; i < max(len(errs), len(dataErrs)); i++ {

	hr = madmin.HealResultItem{
		Type:         madmin.HealItemObject,
		Bucket:       bucket,
		Object:       object,
		DiskCount:    len(storageDisks),
		ParityBlocks: er.defaultParityCount,
		DataBlocks:   len(storageDisks) - er.defaultParityCount,
		ObjectSize:   0,
	}

	hr.Before.Drives = make([]madmin.HealDriveInfo, len(storageDisks))
	hr.After.Drives = make([]madmin.HealDriveInfo, len(storageDisks))

	partsMetadata, errs := readAllFileInfo(ctx, storageDisks, bucket, minioMetaMultipartBucket,
		uploadIDPath, "", false, false)

	readQuorum, writeQuorum, err := objectQuorumFromMeta(ctx, partsMetadata, errs, er.defaultParityCount)
	if err != nil {
		return fi, nil, err
	}

	quorum := readQuorum
	if write {
		quorum = writeQuorum
	}

	// List all online disks.

func (z *erasureServerPools) BackendInfo() (b madmin.BackendInfo) {
	b.Type = madmin.Erasure

	scParity := globalStorageClass.GetParityForSC(storageclass.STANDARD)
	if scParity < 0 {
		scParity = z.serverPools[0].defaultParityCount
	}
	rrSCParity := globalStorageClass.GetParityForSC(storageclass.RRS)

	// Data blocks can vary per pool, but parity is same.
	for i, setDriveCount := range z.SetDriveCounts() {