diff --git a/pkg/fileservice/aliyun_sdk.go b/pkg/fileservice/aliyun_sdk.go
index f1389b421c0f6..8df54a7d2ab31 100644
--- a/pkg/fileservice/aliyun_sdk.go
+++ b/pkg/fileservice/aliyun_sdk.go
@@ -226,7 +226,7 @@ func (a *AliyunSDK) Exists(
 		if a.is404(err) {
 			return false, nil
 		}
-		return false, err
+		return false, wrapError("AliyunSDK.Exists", err)
 	}
 
 	return true, nil
diff --git a/pkg/fileservice/aws_sdk_v2.go b/pkg/fileservice/aws_sdk_v2.go
index 413a794c0f47a..e20afc820eb8d 100644
--- a/pkg/fileservice/aws_sdk_v2.go
+++ b/pkg/fileservice/aws_sdk_v2.go
@@ -309,7 +309,7 @@ func (a *AwsSDKv2) Exists(
 				return false, nil
 			}
 		}
-		return false, err
+		return false, wrapError("AwsSDKv2.Exists", err)
 	}
 	return output != nil, nil
 }
diff --git a/pkg/fileservice/disk_object_storage.go b/pkg/fileservice/disk_object_storage.go
index e2ba7d2277af0..fe7e2696c576a 100644
--- a/pkg/fileservice/disk_object_storage.go
+++ b/pkg/fileservice/disk_object_storage.go
@@ -95,7 +95,7 @@ func (d *diskObjectStorage) Exists(ctx context.Context, key string) (bool, error
 		if os.IsNotExist(err) {
 			return false, nil
 		}
-		return false, err
+		return false, wrapError("diskObjectStorage.Exists", err)
 	}
 	return true, nil
 }
diff --git a/pkg/fileservice/error.go b/pkg/fileservice/error.go
index 076fef5134e0e..1ba34eefdb589 100644
--- a/pkg/fileservice/error.go
+++ b/pkg/fileservice/error.go
@@ -110,3 +110,25 @@ func isDiskFull(err error) bool {
 	str := err.Error()
 	return strings.Contains(str, "disk quota exceeded")
 }
+
+type errorWrap struct {
+	what string
+	err  error
+}
+
+var _ error = errorWrap{}
+
+func (e errorWrap) Error() string {
+	return e.what + ": " + e.err.Error()
+}
+
+func (e errorWrap) Unwrap() error {
+	return e.err
+}
+
+func wrapError(what string, err error) errorWrap {
+	return errorWrap{
+		what: what,
+		err:  err,
+	}
+}
diff --git a/pkg/fileservice/minio_sdk.go b/pkg/fileservice/minio_sdk.go
index 9d53d13b27424..e1f48a52fcc3e 100644
--- a/pkg/fileservice/minio_sdk.go
+++ b/pkg/fileservice/minio_sdk.go
@@ -312,7 +312,7 @@ func (a *MinioSDK) Exists(
 		if a.is404(err) {
 			return false, nil
 		}
-		return false, err
+		return false, wrapError("MinioSDK.Exists", err)
 	}
 
 	return true, nil
diff --git a/pkg/fileservice/qcloud_sdk.go b/pkg/fileservice/qcloud_sdk.go
index 008806f8b609a..b7ed42b57b4f2 100644
--- a/pkg/fileservice/qcloud_sdk.go
+++ b/pkg/fileservice/qcloud_sdk.go
@@ -229,7 +229,7 @@ func (a *QCloudSDK) Exists(
 		if a.is404(err) {
 			return false, nil
 		}
-		return false, err
+		return false, wrapError("QCloudSDK.Exists", err)
 	}
 
 	return true, nil