// dynamic sleeper to avoid thundering herd for trash folder expunge routine
	deleteCleanupSleeper = newDynamicSleeper(5, 25*time.Millisecond, false)

	// dynamic sleeper for multipart expiration routine

:before{content:"\f941"}.fa-train:before{content:"\f238"}.fa-tram:before{content:"\f7da"}.fa-transgender:before{content:"\f224"}.fa-transgender-alt:before{content:"\f225"}.fa-trash:before{content:"\f1f8"}.fa-trash-alt:before{content:"\f2ed"}.fa-trash-restore:before{content:"\f829"}.fa-trash-restore-alt:before{content:"\f82a"}.fa-tree:before{content:"\f1bb"}.fa-trello:before{content:"\f181"}.fa-tripadvisor:before{content:"\f262"}.fa-trophy:before{content:"\f091"}.fa-truck:before{content:"\f0d1"}....

	newDisks, _, healing := er.getOnlineDisksWithHealingAndInfo(inclHealing)
	return newDisks, healing > 0
}

// Clean-up previously deleted objects. from .minio.sys/tmp/.trash/
func (er erasureObjects) cleanupDeletedObjects(ctx context.Context) {
	var wg sync.WaitGroup
	for _, disk := range er.getLocalDisks() {
		if disk == nil {
			continue
		}
		wg.Add(1)

		tmpMetaDir := path.Join(disk, minioMetaTmpBucket)
		files, err := os.ReadDir(tmpMetaDir)
		if err != nil {
			t.Fatal(err)
		}
		var found bool
		for _, fi := range files {
			if fi.Name() == ".trash" {
				continue
			}
			found = true
		}
		if found {
			t.Fatalf("%s: expected: empty, got: non-empty %#v", minioMetaTmpBucket, files)
		}
	}
}

:before{content:"\f941"}.fa-train:before{content:"\f238"}.fa-tram:before{content:"\f7da"}.fa-transgender:before{content:"\f224"}.fa-transgender-alt:before{content:"\f225"}.fa-trash:before{content:"\f1f8"}.fa-trash-alt:before{content:"\f2ed"}.fa-trash-restore:before{content:"\f829"}.fa-trash-restore-alt:before{content:"\f82a"}.fa-tree:before{content:"\f1bb"}.fa-trello:before{content:"\f181"}.fa-tripadvisor:before{content:"\f262"}.fa-trophy:before{content:"\f091"}.fa-truck:before{content:"\f0d1"}....

			wait()
			return nil
		})
	})

	readDirFn(pathJoin(drivePath, minioMetaTmpBucket), func(tmpDir string, typ os.FileMode) error {
		if strings.HasPrefix(tmpDir, ".trash") {
			// do not remove .trash/ here, it has its own routines
			return nil
		}
		vi, err := disk.StatVol(ctx, pathJoin(minioMetaTmpBucket, tmpDir))
		if err != nil {
			return nil
		}

	// Start the disk monitoring and connect routine.
	if !globalIsTesting {
		go s.monitorAndConnectEndpoints(ctx, defaultMonitorConnectEndpointInterval)
	}

	return s, nil
}

// cleanup ".trash/" folder every 5m minutes with sufficient sleep cycles, between each
// deletes a dynamic sleeper is used with a factor of 10 ratio with max delay between
// deletes to be 2 seconds.

	// MinIO tmp meta prefix.
	minioMetaTmpBucket = minioMetaBucket + "/tmp"
	// MinIO tmp meta prefix for deleted objects.
	minioMetaTmpDeletedBucket = minioMetaTmpBucket + "/.trash"

	// DNS separator (period), used for bucket name validation.
	dnsDelimiter = "."
	// On compressed files bigger than this;
	compReadAheadSize = 100 << 20
	// Read this many buffers ahead.
	compReadAheadBuffers = 5

func makeFormatErasureMetaVolumes(disk StorageAPI) error {
	if disk == nil {
		return errDiskNotFound
	}
	volumes := []string{
		minioMetaTmpDeletedBucket, // creates .minio.sys/tmp as well as .minio.sys/tmp/.trash
		minioMetaMultipartBucket,  // creates .minio.sys/multipart
		dataUsageBucket,           // creates .minio.sys/buckets
		minioConfigBucket,         // creates .minio.sys/config
	}

	healEntry := func(bucket string, entry metaCacheEntry, scanMode madmin.HealScanMode) error {
		if entry.isDir() {
			return nil
		}
		// We might land at .metacache, .trash, .multipart
		// no need to heal them skip, only when bucket
		// is '.minio.sys'
		if bucket == minioMetaBucket {
			if wildcard.Match("buckets/*/.metacache/*", entry.name) {
				return nil
			}