diff --git a/internal/util/compress.go b/internal/util/compress.go
new file mode 100644
index 0000000..a7a36bf
--- /dev/null
+++ b/internal/util/compress.go
@@ -0,0 +1,73 @@
+package util
+
+import (
+	"compress/gzip"
+	"io"
+	"os"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+)
+
+func CompressFile(fileIn string, fileOut string) error {
+	originalFile, err := os.Open(fileIn)
+	if err != nil {
+		log.Errorf("CompressFile() error: %v", err)
+		return err
+	}
+	defer originalFile.Close()
+
+	gzippedFile, err := os.Create(fileOut)
+
+	if err != nil {
+		log.Errorf("CompressFile() error: %v", err)
+		return err
+	}
+	defer gzippedFile.Close()
+
+	gzipWriter := gzip.NewWriter(gzippedFile)
+	defer gzipWriter.Close()
+
+	_, err = io.Copy(gzipWriter, originalFile)
+	if err != nil {
+		log.Errorf("CompressFile() error: %v", err)
+		return err
+	}
+	gzipWriter.Flush()
+	if err := os.Remove(fileIn); err != nil {
+		log.Errorf("CompressFile() error: %v", err)
+		return err
+	}
+
+	return nil
+}
+
+func UncompressFile(fileIn string, fileOut string) error {
+	gzippedFile, err := os.Open(fileIn)
+	if err != nil {
+		log.Errorf("UncompressFile() error: %v", err)
+		return err
+	}
+	defer gzippedFile.Close()
+
+	gzipReader, _ := gzip.NewReader(gzippedFile)
+	defer gzipReader.Close()
+
+	uncompressedFile, err := os.Create(fileOut)
+	if err != nil {
+		log.Errorf("UncompressFile() error: %v", err)
+		return err
+	}
+	defer uncompressedFile.Close()
+
+	_, err = io.Copy(uncompressedFile, gzipReader)
+	if err != nil {
+		log.Errorf("UncompressFile() error: %v", err)
+		return err
+	}
+	if err := os.Remove(fileIn); err != nil {
+		log.Errorf("UncompressFile() error: %v", err)
+		return err
+	}
+
+	return nil
+}
diff --git a/internal/util/copy.go b/internal/util/copy.go
new file mode 100644
index 0000000..f66b976
--- /dev/null
+++ b/internal/util/copy.go
@@ -0,0 +1,106 @@
+package util
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+func CopyFile(src, dst string) (err error) {
+	in, err := os.Open(src)
+	if err != nil {
+		return
+	}
+	defer in.Close()
+
+	out, err := os.Create(dst)
+	if err != nil {
+		return
+	}
+	defer func() {
+		if e := out.Close(); e != nil {
+			err = e
+		}
+	}()
+
+	_, err = io.Copy(out, in)
+	if err != nil {
+		return
+	}
+
+	err = out.Sync()
+	if err != nil {
+		return
+	}
+
+	si, err := os.Stat(src)
+	if err != nil {
+		return
+	}
+	err = os.Chmod(dst, si.Mode())
+	if err != nil {
+		return
+	}
+
+	return
+}
+
+// CopyDir recursively copies a directory tree, attempting to preserve permissions.
+// Source directory must exist, destination directory must *not* exist.
+// Symlinks are ignored and skipped.
+func CopyDir(src string, dst string) (err error) {
+	src = filepath.Clean(src)
+	dst = filepath.Clean(dst)
+
+	si, err := os.Stat(src)
+	if err != nil {
+		return err
+	}
+	if !si.IsDir() {
+		return fmt.Errorf("source is not a directory")
+	}
+
+	_, err = os.Stat(dst)
+	if err != nil && !os.IsNotExist(err) {
+		return
+	}
+	if err == nil {
+		return fmt.Errorf("destination already exists")
+	}
+
+	err = os.MkdirAll(dst, si.Mode())
+	if err != nil {
+		return
+	}
+
+	entries, err := ioutil.ReadDir(src)
+	if err != nil {
+		return
+	}
+
+	for _, entry := range entries {
+		srcPath := filepath.Join(src, entry.Name())
+		dstPath := filepath.Join(dst, entry.Name())
+
+		if entry.IsDir() {
+			err = CopyDir(srcPath, dstPath)
+			if err != nil {
+				return
+			}
+		} else {
+			// Skip symlinks.
+			if entry.Mode()&os.ModeSymlink != 0 {
+				continue
+			}
+
+			err = CopyFile(srcPath, dstPath)
+			if err != nil {
+				return
+			}
+		}
+	}
+
+	return
+}
diff --git a/internal/util/fstat.go b/internal/util/fstat.go
new file mode 100644
index 0000000..60cd68e
--- /dev/null
+++ b/internal/util/fstat.go
@@ -0,0 +1,30 @@
+package util
+
+import (
+	"errors"
+	"os"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+)
+
+func CheckFileExists(filePath string) bool {
+	_, err := os.Stat(filePath)
+	return !errors.Is(err, os.ErrNotExist)
+}
+
+func GetFilesize(filePath string) int64 {
+	fileInfo, err := os.Stat(filePath)
+	if err != nil {
+		log.Errorf("Error on Stat %s: %v", filePath, err)
+	}
+	return fileInfo.Size()
+}
+
+func GetFilecount(path string) int {
+	files, err := os.ReadDir(path)
+	if err != nil {
+		log.Errorf("Error on ReadDir %s: %v", path, err)
+	}
+
+	return len(files)
+}
diff --git a/pkg/archive/archive_test.go b/pkg/archive/archive_test.go
index 19d0a06..b41a033 100644
--- a/pkg/archive/archive_test.go
+++ b/pkg/archive/archive_test.go
@@ -7,120 +7,21 @@ package archive_test
 import (
 	"encoding/json"
 	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
 	"path/filepath"
 	"testing"
 	"time"
 
+	"github.com/ClusterCockpit/cc-backend/internal/util"
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
-func CopyFile(src, dst string) (err error) {
-	in, err := os.Open(src)
-	if err != nil {
-		return
-	}
-	defer in.Close()
-
-	out, err := os.Create(dst)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if e := out.Close(); e != nil {
-			err = e
-		}
-	}()
-
-	_, err = io.Copy(out, in)
-	if err != nil {
-		return
-	}
-
-	err = out.Sync()
-	if err != nil {
-		return
-	}
-
-	si, err := os.Stat(src)
-	if err != nil {
-		return
-	}
-	err = os.Chmod(dst, si.Mode())
-	if err != nil {
-		return
-	}
-
-	return
-}
-
-// CopyDir recursively copies a directory tree, attempting to preserve permissions.
-// Source directory must exist, destination directory must *not* exist.
-// Symlinks are ignored and skipped.
-func CopyDir(src string, dst string) (err error) {
-	src = filepath.Clean(src)
-	dst = filepath.Clean(dst)
-
-	si, err := os.Stat(src)
-	if err != nil {
-		return err
-	}
-	if !si.IsDir() {
-		return fmt.Errorf("source is not a directory")
-	}
-
-	_, err = os.Stat(dst)
-	if err != nil && !os.IsNotExist(err) {
-		return
-	}
-	if err == nil {
-		return fmt.Errorf("destination already exists")
-	}
-
-	err = os.MkdirAll(dst, si.Mode())
-	if err != nil {
-		return
-	}
-
-	entries, err := ioutil.ReadDir(src)
-	if err != nil {
-		return
-	}
-
-	for _, entry := range entries {
-		srcPath := filepath.Join(src, entry.Name())
-		dstPath := filepath.Join(dst, entry.Name())
-
-		if entry.IsDir() {
-			err = CopyDir(srcPath, dstPath)
-			if err != nil {
-				return
-			}
-		} else {
-			// Skip symlinks.
-			if entry.Mode()&os.ModeSymlink != 0 {
-				continue
-			}
-
-			err = CopyFile(srcPath, dstPath)
-			if err != nil {
-				return
-			}
-		}
-	}
-
-	return
-}
-
 var jobs []*schema.Job
 
 func setup(t *testing.T) archive.ArchiveBackend {
 	tmpdir := t.TempDir()
 	jobarchive := filepath.Join(tmpdir, "job-archive")
-	CopyDir("./testdata/archive/", jobarchive)
+	util.CopyDir("./testdata/archive/", jobarchive)
 	archiveCfg := fmt.Sprintf("{\"kind\": \"file\",\"path\": \"%s\"}", jobarchive)
 
 	if err := archive.Init(json.RawMessage(archiveCfg), false); err != nil {
diff --git a/pkg/archive/fsBackend.go b/pkg/archive/fsBackend.go
index 41d172d..227f37b 100644
--- a/pkg/archive/fsBackend.go
+++ b/pkg/archive/fsBackend.go
@@ -11,7 +11,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io"
 	"os"
 	"path"
 	"path/filepath"
@@ -20,6 +19,7 @@ import (
 	"time"
 
 	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/util"
 	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/santhosh-tekuri/jsonschema/v5"
@@ -34,11 +34,6 @@ type FsArchive struct {
 	clusters []string
 }
 
-func checkFileExists(filePath string) bool {
-	_, err := os.Stat(filePath)
-	return !errors.Is(err, os.ErrNotExist)
-}
-
 func getDirectory(
 	job *schema.Job,
 	rootPath string,
@@ -169,39 +164,21 @@ func (fsa *FsArchive) CleanUp(jobs []*schema.Job) {
 		if err := os.RemoveAll(dir); err != nil {
 			log.Errorf("JobArchive Cleanup() error: %v", err)
 		}
+
+		parent := filepath.Clean(filepath.Join(dir, ".."))
+		if util.GetFilecount(parent) == 0 {
+			if err := os.Remove(parent); err != nil {
+				log.Errorf("JobArchive Cleanup() error: %v", err)
+			}
+		}
 	}
 }
 
 func (fsa *FsArchive) Compress(jobs []*schema.Job) {
 	for _, job := range jobs {
 		fileIn := getPath(job, fsa.path, "data.json")
-		if !checkFileExists(fileIn) && (job.Duration > 600 || job.NumNodes > 4) {
-
-			originalFile, err := os.Open(fileIn)
-			if err != nil {
-				log.Errorf("JobArchive Compress() error: %v", err)
-			}
-			defer originalFile.Close()
-
-			fileOut := getPath(job, fsa.path, "data.json.gz")
-			gzippedFile, err := os.Create(fileOut)
-
-			if err != nil {
-				log.Errorf("JobArchive Compress() error: %v", err)
-			}
-			defer gzippedFile.Close()
-
-			gzipWriter := gzip.NewWriter(gzippedFile)
-			defer gzipWriter.Close()
-
-			_, err = io.Copy(gzipWriter, originalFile)
-			if err != nil {
-				log.Errorf("JobArchive Compress() error: %v", err)
-			}
-			gzipWriter.Flush()
-			if err := os.Remove(fileIn); err != nil {
-				log.Errorf("JobArchive Compress() error: %v", err)
-			}
+		if !util.CheckFileExists(fileIn) && util.GetFilesize(fileIn) > 2000 {
+			util.CompressFile(fileIn, getPath(job, fsa.path, "data.json.gz"))
 		}
 	}
 }
@@ -209,7 +186,8 @@ func (fsa *FsArchive) Compress(jobs []*schema.Job) {
 func (fsa *FsArchive) LoadJobData(job *schema.Job) (schema.JobData, error) {
 	var isCompressed bool = true
 	filename := getPath(job, fsa.path, "data.json.gz")
-	if !checkFileExists(filename) {
+
+	if !util.CheckFileExists(filename) {
 		filename = getPath(job, fsa.path, "data.json")
 		isCompressed = false
 	}
@@ -218,7 +196,6 @@ func (fsa *FsArchive) LoadJobData(job *schema.Job) (schema.JobData, error) {
 }
 
 func (fsa *FsArchive) LoadJobMeta(job *schema.Job) (*schema.JobMeta, error) {
-
 	filename := getPath(job, fsa.path, "meta.json")
 	return loadJobMeta(filename)
 }
@@ -285,7 +262,7 @@ func (fsa *FsArchive) Iter(loadMetricData bool) <-chan JobContainer {
 								var isCompressed bool = true
 								filename := filepath.Join(dirpath, startTimeDir.Name(), "data.json.gz")
 
-								if !checkFileExists(filename) {
+								if !util.CheckFileExists(filename) {
 									filename = filepath.Join(dirpath, startTimeDir.Name(), "data.json")
 									isCompressed = false
 								}