n, err := rc.Read(data[:])
		if err != nil {
			return err
		}
		if n != len(data) {
			return errors.New("heal mrf: no data")
		}
		// Read resync meta header
		switch binary.LittleEndian.Uint16(data[0:2]) {
		case healMRFMetaFormat:
		default:
			return fmt.Errorf("heal mrf: unknown format: %d", binary.LittleEndian.Uint16(data[0:2]))
		}
		switch binary.LittleEndian.Uint16(data[2:4]) {

	if err != nil {
		t.Fatal(err)
	}

	// After heal the meta file should be as expected.
	if !fileInfoPreHeal1.Equals(fileInfoPostHeal1) {
		t.Fatal("HealObject failed")
	}

	fileInfoPostHeal2, err = disk.ReadVersion(t.Context(), "", bucket, object, "", ReadOptions{ReadData: false, Healing: true})
	if err != nil {
		t.Fatal(err)
	}

	// After heal the meta file should be as expected.

	if i.debug {
		if oi.VersionID != "" {
			console.Debugf(applyActionsLogPrefix+" heal checking: %v/%v v(%s)\n", i.bucket, i.objectPath(), oi.VersionID)
		} else {
			console.Debugf(applyActionsLogPrefix+" heal checking: %v/%v\n", i.bucket, i.objectPath())
		}
	}
	scanMode := madmin.HealNormalScan
	if i.heal.bitrot {
		scanMode = madmin.HealDeepScan
	}
	healOpts := madmin.HealOpts{

until $(./mc stat sitea/bucket/README.md --json | jq -r '.metadata."X-Amz-Storage-Class"' | grep -q WARM-TIER); do
	echo "waiting until the object is tiered to run heal"
	sleep 1s
done
./mc stat sitea/bucket/README.md

success=$(./mc admin heal -r sitea/bucket/README.md --json --force | jq -r 'select((.name == "bucket/README.md") and (.after.color == "green")) | .after.color == "green"')
if [ "${success}" != "true" ]; then

docker-compose -f docker-compose-site2.yaml up -d

./mc ready site1/
./mc ready site2/

for i in $(seq 1 10); do
	# mc admin heal -r --remove when used against a LB endpoint
	# behaves flaky, let this run 10 times before giving up
	./mc admin heal -r --remove --json site1/ 2>&1 >/dev/null
	./mc admin heal -r --remove --json site2/ 2>&1 >/dev/null
done

whereas in MinIO erasure code you can lose as many as half of drives and still the data remains safe. Further, MinIO's erasure code is at the object level and can heal one object at a time. For RAID, healing can be done only at the volume level which translates into high downtime. As MinIO encodes each object individually, it can heal objects incrementally. Storage servers once deployed should not require drive replacement or healing for the lifetime of the server. MinIO's erasure coded backend is...

}

// HealHandler - POST /minio/admin/v3/heal/
// -----------
// Start heal processing and return heal status items.
//
// On a successful heal sequence start, a unique client token is
// returned. Subsequent requests to this endpoint providing the client
// token will receive heal status records from the running heal
// sequence.
//
// If no client token is provided, and a heal sequence is in progress

			UpdatedAt: lastUpdate,
		})
		if err != nil {
			replLogOnceIf(
				ctx,
				fmt.Errorf("Unable to heal IAM policy %s from peer site %s -> site %s : %w", policy, latestPeerName, peerName, err),
				fmt.Sprintf("heal-policy-%s", policy))
		}
	}
	return nil
}

// heal user policy mappings present on this site to peers, provided current cluster has the most recent update.

		}
		globalCompressConfigMu.Lock()
		globalCompressConfig = cmpCfg
		globalCompressConfigMu.Unlock()
	case config.HealSubSys:
		healCfg, err := heal.LookupConfig(s[config.HealSubSys][config.Default])
		if err != nil {
			errs = append(errs, fmt.Errorf("Unable to apply heal config: %w", err))
		} else {
			globalHealConfig.Update(healCfg)
		}
	case config.BatchSubSys:

		g.Go(func() error {
			if storageDisks[index] == nil {
				return errDiskNotFound
			}
			format, err := loadFormatErasure(storageDisks[index], heal)
			if err != nil {
				return err
			}
			formats[index] = format
			if !heal {
				// If no healing required, make the disks valid and
				// online.
				storageDisks[index].SetDiskID(format.Erasure.This)
			}
			return nil
		}, index)