diff --git a/esrally/storage/_cli.py b/esrally/storage/_cli.py
index 50cae89ab..f77d7639d 100644
--- a/esrally/storage/_cli.py
+++ b/esrally/storage/_cli.py
@@ -156,7 +156,7 @@ def main():
                 fmt = "json"
             elif args.filebeat:
                 fmt = "filebeat"
-            ls(transfers, fmt=fmt, stats=args.stats, mirror_failures=args.mirror_failures, file_types=file_types)
+            ls(transfers, fmt=fmt, stats=args.stats, file_types=file_types)
         case "get":
             get(transfers, todo=storage.rangeset(args.range), monitor_interval=cfg.monitor_interval)
         case "put":
@@ -173,7 +173,6 @@ def ls(
     *,
     fmt: LsFormat = "json",
     stats: bool = False,
-    mirror_failures: bool = False,
     file_types: set[storage.TransferFileType] | None = None,
 ) -> None:
     LOG.info("Found %d transfer(s).", len(transfers))
@@ -185,7 +184,7 @@ def ls(
             sys.stdout.write("\n".join(sorted(filenames)) + "\n")
         case "json":
             json.dump(
-                [transfer_to_dict(tr, stats=stats, mirror_failures=mirror_failures) for tr in transfers],
+                [transfer_to_dict(tr, stats=stats) for tr in transfers],
                 sys.stdout,
                 indent=2,
                 sort_keys=True,
@@ -193,11 +192,11 @@ def ls(
         case "filebeat":
             for tr in transfers:
                 # Filebeat format is made of the root object (without stats), plus a separate object for each transfer stat.
-                for d in transfer_to_filebeat(tr, stats=stats, mirror_failures=mirror_failures):
+                for d in transfer_to_filebeat(tr, stats=stats):
                     line = json.dumps({"rally": {"storage": d}})
                     sys.stdout.write(f"{line}\n")
         case "pretty":
-            json.dump([t.pretty(stats=stats, mirror_failures=mirror_failures) for t in transfers], sys.stdout, indent=2)
+            json.dump([t.pretty(stats=stats) for t in transfers], sys.stdout, indent=2)
 
 
 class BaseTransferDict(TypedDict):
@@ -239,7 +238,7 @@ class StatsDict(TypedDict):
     write_time: float
 
 
-def transfer_to_dict(tr: storage.Transfer, *, stats: bool = False, mirror_failures: bool = False) -> TransferDict:
+def transfer_to_dict(tr: storage.Transfer, *, stats: bool = False) -> TransferDict:
     """It obtains dictionaries from transfer status in the format to be serialized as JSON."""
     d = TransferDict(
         url=tr.url,
@@ -252,9 +251,9 @@ def transfer_to_dict(tr: storage.Transfer, *, stats: bool = False, mirror_failur
         todo=str(tr.todo),
         finished=tr.finished,
     )
-    if mirror_failures:
+    if tr.mirror_failures:
         d["mirror_failures"] = [MirrorFailureDict(url=f.url, error=f.error) for f in tr.mirror_failures]
-    if stats:
+    if stats and tr.stats:
         d["stats"] = [
             StatsDict(
                 url=s.url,
@@ -270,7 +269,7 @@ def transfer_to_dict(tr: storage.Transfer, *, stats: bool = False, mirror_failur
 
 
 def transfer_to_filebeat(
-    tr: storage.Transfer, stats: bool = False, mirror_failures: bool = False
+    tr: storage.Transfer, stats: bool = False
 ) -> Generator[TransferDict | FilebeatStatsDict | FilebeatMirrorFailureDict]:
     """It obtains dictionaries from transfer in the format to be ingested to filebeat.
 
@@ -279,7 +278,7 @@ def transfer_to_filebeat(
       - a FilebeatMirrorFailureDict for every MirrorFailureDict in 'mirror_failures' list.
       - a FilebeatStatsDict for every TransferStatsDict in 'stats' list.
     """
-    root: TransferDict = transfer_to_dict(tr, stats=stats, mirror_failures=mirror_failures)
+    root: TransferDict = transfer_to_dict(tr, stats=stats)
     _mirror_failures: list[MirrorFailureDict] = root.pop("mirror_failures", [])
     _stats: list[StatsDict] = root.pop("stats", [])
     yield root
diff --git a/esrally/storage/_transfer.py b/esrally/storage/_transfer.py
index fc31a3a87..9335e22d6 100644
--- a/esrally/storage/_transfer.py
+++ b/esrally/storage/_transfer.py
@@ -701,7 +701,7 @@ def average_speed(self) -> float:
             return 0.0
         return (done.size - self._resumed_size) / self.duration.s()
 
-    def pretty(self, *, stats: bool = False, mirror_failures: bool = False) -> dict[str, Any]:
+    def pretty(self, *, stats: bool = False) -> dict[str, Any]:
         details: dict[str, Any] = {
             "url": self.url,
             "path": self.path,
@@ -712,14 +712,14 @@ def pretty(self, *, stats: bool = False, mirror_failures: bool = False) -> dict[
             "duration": self.duration and pretty.duration(self.duration),
             "throughput": self.average_speed and pretty.throughput(self.average_speed),
         }
-        if mirror_failures:
+        if self.mirror_failures:
             details["mirror_failures"] = [dataclasses.asdict(f) for f in self.mirror_failures]
         if stats:
             details["stats"] = [s.pretty() for s in self.stats]
         return {k: v for k, v in details.items() if v}
 
-    def info(self, *, stats: bool = False, mirror_failures: bool = False) -> str:
-        return json.dumps(self.pretty(stats=stats, mirror_failures=mirror_failures), indent=2)
+    def info(self, *, stats: bool = False) -> str:
+        return json.dumps(self.pretty(stats=stats), indent=2)
 
     def wait(self, timeout: float | None = None) -> None:
         """It waits for transfer termination."""