diff --git a/opera/genesisstore/disk.go b/opera/genesisstore/disk.go
index e9116ceda..4919eb1e3 100644
--- a/opera/genesisstore/disk.go
+++ b/opera/genesisstore/disk.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"strings"
 	"time"
 
 	"github.com/Fantom-foundation/lachesis-base/common/bigendian"
@@ -133,14 +134,19 @@ func OpenGenesisStore(rawReader ReadAtSeekerCloser) (*Store, genesis.Hashes, err
 		// wrap with a logger
 		// human-readable name
 		name := unit.UnitName
-		if unit.UnitName == BlocksSection {
-			name = "blocks"
+		scanfName := strings.ReplaceAll(name, "-", "")
+		if scanfName[len(scanfName)-1] < '0' || scanfName[len(scanfName)-1] > '9' {
+			scanfName += "0"
 		}
-		if unit.UnitName == EpochsSection {
-			name = "epochs"
+		var part int
+		if _, err := fmt.Sscanf(scanfName, "brs%d", &part); err == nil {
+			name = fmt.Sprintf("blocks unit %d", part)
 		}
-		if unit.UnitName == EvmSection {
-			name = "EVM data"
+		if _, err := fmt.Sscanf(scanfName, "ers%d", &part); err == nil {
+			name = fmt.Sprintf("epochs unit %d", part)
+		}
+		if _, err := fmt.Sscanf(scanfName, "evm%d", &part); err == nil {
+			name = fmt.Sprintf("EVM unit %d", part)
 		}
 		loggedReader := filelog.Wrap(gzipReader, name, uncompressedSize, time.Minute)
 
diff --git a/opera/genesisstore/store_genesis.go b/opera/genesisstore/store_genesis.go
index aa78bc7a1..ff2079fdb 100644
--- a/opera/genesisstore/store_genesis.go
+++ b/opera/genesisstore/store_genesis.go
@@ -38,7 +38,7 @@ func getSectionName(base string, i int) string {
 	if i == 0 {
 		return base
 	}
-	return fmt.Sprintf("%s-%d", BlocksSection, i)
+	return fmt.Sprintf("%s-%d", base, i)
 }
 
 func (s Store) Header() genesis.Header {
@@ -50,10 +50,10 @@ func (s *Store) Blocks() genesis.Blocks {
 }
 
 func (s Blocks) ForEach(fn func(ibr.LlrIdxFullBlockRecord) bool) {
-	for i := 0; ; i++ {
+	for i := 1000; i >= 0; i-- {
 		f, err := s.fMap(getSectionName(BlocksSection, i))
 		if err != nil {
-			return
+			continue
 		}
 		stream := rlp.NewStream(f, 0)
 		for {
@@ -77,10 +77,10 @@ func (s *Store) Epochs() genesis.Epochs {
 }
 
 func (s Epochs) ForEach(fn func(ier.LlrIdxFullEpochRecord) bool) {
-	for i := 0; ; i++ {
+	for i := 1000; i >= 0; i-- {
 		f, err := s.fMap(getSectionName(EpochsSection, i))
 		if err != nil {
-			return
+			continue
 		}
 		stream := rlp.NewStream(f, 0)
 		for {
@@ -104,10 +104,10 @@ func (s *Store) RawEvmItems() genesis.EvmItems {
 }
 
 func (s RawEvmItems) ForEach(fn func(key, value []byte) bool) {
-	for i := 0; ; i++ {
+	for i := 1000; i >= 0; i-- {
 		f, err := s.fMap(getSectionName(EvmSection, i))
 		if err != nil {
-			return
+			continue
 		}
 		it := iodb.NewIterator(f)
 		for it.Next() {