diff --git a/deploy/systemd/genarrative-database-backup-files-minimal.conf b/deploy/systemd/genarrative-database-backup-files-minimal.conf
index 2124eb345..c8d2e43fe 100644
--- a/deploy/systemd/genarrative-database-backup-files-minimal.conf
+++ b/deploy/systemd/genarrative-database-backup-files-minimal.conf
@@ -2,4 +2,4 @@
 Environment=GENARRATIVE_DATABASE_BACKUP_FILES_CONCURRENCY=4
 Environment=GENARRATIVE_DATABASE_BACKUP_UPLOAD_MAX_BYTES_PER_SECOND=20971520
 ExecStart=
-ExecStart=/usr/bin/node -- /opt/genarrative/current/scripts/database-backup-to-oss.mjs --env-file /etc/genarrative/api-server.env --storage-format files --mode full --minimal --retain-snapshots 2 --data-dir /stdb --work-dir /var/lib/genarrative/database-backups/files-minimal
+ExecStart=/usr/bin/node -- /opt/genarrative/current/scripts/database-backup-to-oss.mjs --env-file /etc/genarrative/api-server.env --storage-format files --mode full --minimal --retain-snapshots 2 --freeze-dir /var/lib/genarrative/database-backups/files-minimal-freeze --data-dir /stdb --work-dir /var/lib/genarrative/database-backups/files-minimal
diff --git a/scripts/check-production-ops-guardrails.mjs b/scripts/check-production-ops-guardrails.mjs
index 4c6e65d85..93d81f106 100644
--- a/scripts/check-production-ops-guardrails.mjs
+++ b/scripts/check-production-ops-guardrails.mjs
@@ -1028,13 +1028,13 @@ const checks = [
   },
   {
     file: 'deploy/systemd/genarrative-database-backup-files-minimal.conf',
-    includes: '--mode full --minimal --retain-snapshots 2',
+    includes: '--mode full --minimal --retain-snapshots 2 --freeze-dir',
     reason:
       'files-minimal 定时备份必须使用 minimal 口径并保留上游默认的最近 2 份 snapshot。',
   },
   {
     file: 'scripts/deploy/production-stdb-publish.sh',
-    includes: '--minimal --retain-snapshots',
+    includes: '--freeze-dir',
     reason:
       '发布前备份默认使用 minimal 热备，避免 40G 级冷备空间门槛与停服。',
   },
diff --git a/scripts/database-backup-to-oss.mjs b/scripts/database-backup-to-oss.mjs
index ba6e236fd..26d8cf232 100644
--- a/scripts/database-backup-to-oss.mjs
+++ b/scripts/database-backup-to-oss.mjs
@@ -107,6 +107,7 @@ function usage() {
   将 SpacetimeDB 数据目录以 .tar.gz 或逐文件 catalog 形式上传到阿里云 OSS 指定 bucket。
   默认 full 模式保持原有全量冷备行为；history 模式只归档已被最新 snapshot 覆盖的历史 commitlog 与旧 snapshot。
   --storage-format files 不打包：按原相对路径建立 catalog，文件内容以 SHA-256 不可变对象上传；重复运行只上传新增或变化内容。
+  --freeze-dir <path> 仅用于 --minimal：先把选中子集 rsync 成冻结副本再上传，避免热备时最新 commitlog 追加导致 stat 漂移；副本内保持原始相对路径。
   --minimal 只备份上游 retention 语义下仍需要的部分（最近 --retain-snapshots 份 snapshot + 其后 commitlog 段 + 身份/配置/控制库/模块字节）；只支持 files 格式，且不停止任何服务。
   archive history 必须有已验真的 full baseline state；files history 必须复用同一 work-dir 中已发布的 full catalog state。
   --defer-upload 只生成本地冷备份和 manifest，不上传；后续用 --upload-archive 异步上传。
@@ -204,6 +205,7 @@ function parseArgs(argv) {
     minFreeBytes: '',
     mode: 'full',
     minimal: false,
+    freezeDir: '',
     retainSnapshots: DEFAULT_RETAIN_SNAPSHOTS,
     baselineState: '',
     baselineManifest: '',
@@ -301,6 +303,9 @@ function parseArgs(argv) {
       case '--retain-snapshots':
         options.retainSnapshots = readValue();
         break;
+      case '--freeze-dir':
+        options.freezeDir = readValue();
+        break;
       case '--baseline-state':
         options.baselineState = readValue();
         break;
@@ -4387,7 +4392,7 @@ async function main() {
   const env = loadEffectiveEnv(args.envFiles);
   const isProductionLike =
     existsSync(DEFAULT_PRODUCTION_DATA_DIR) && process.platform !== 'win32';
-  const dataDir = resolvePath(
+  let dataDir = resolvePath(
     firstNonEmpty(
       args.dataDir,
       env.GENARRATIVE_DATABASE_BACKUP_DATA_DIR,
@@ -4466,6 +4471,51 @@ async function main() {
     throw new Error('--minimal 只支持 --mode full：minimal 自身就是自包含快照。');
   }
 
+  if (args.minimal && args.freezeDir) {
+    if (storageFormat !== 'files') {
+      throw new Error('--freeze-dir 只支持 --minimal --storage-format files。');
+    }
+    const freezeDir = resolvePath(args.freezeDir);
+    const plan = discoverMinimalPlan({
+      dataDir,
+      retainSnapshots: args.retainSnapshots,
+    });
+    console.log(
+      `[database-backup] minimal freeze: candidates=${plan.candidates.length}, size=${plan.totalSizeBytes}, freezeDir=${freezeDir}`,
+    );
+    if (!args.dryRun) {
+      mkdirSync(freezeDir, { recursive: true });
+      const listPath = join(workDir, 'minimal-freeze-files.txt');
+      mkdirSync(workDir, { recursive: true });
+      writeFileSync(
+        listPath,
+        `${plan.candidates.map((item) => item.path).join('\n')}\n`,
+        'utf8',
+      );
+      const result = spawnSync(
+        'rsync',
+        [
+          '-a',
+          '-r',
+          '--delete',
+          `--files-from=${listPath}`,
+          `${dataDir}/`,
+          `${freezeDir}/`,
+        ],
+        { stdio: 'inherit' },
+      );
+      if (result.status !== 0) {
+        throw new Error(
+          `minimal freeze 拷贝失败: rsync exit=${result.status ?? '<signal>'}`,
+        );
+      }
+      console.log(
+        `[database-backup] minimal freeze 完成，后续从冻结副本上传: ${freezeDir}`,
+      );
+    }
+    dataDir = freezeDir;
+  }
+
   if (args.checkSpaceOnly) {
     assertSufficientWorkDirSpace({
       dataDir,
diff --git a/scripts/deploy/production-stdb-publish.sh b/scripts/deploy/production-stdb-publish.sh
index 3b16188f8..115cf43cf 100644
--- a/scripts/deploy/production-stdb-publish.sh
+++ b/scripts/deploy/production-stdb-publish.sh
@@ -856,7 +856,12 @@ case "${BACKUP_MODE}" in
     )
     if [[ "${BACKUP_MINIMAL}" == "1" ]]; then
       echo "[production-stdb-publish] publish 前执行 minimal 热备（最近 ${BACKUP_RETAIN_SNAPSHOTS} 份 snapshot + 其后 commitlog），不停服务"
-      SYNC_BACKUP_ARGS+=(--mode full --minimal --retain-snapshots "${BACKUP_RETAIN_SNAPSHOTS}")
+      SYNC_BACKUP_ARGS+=(
+        --mode full
+        --minimal
+        --retain-snapshots "${BACKUP_RETAIN_SNAPSHOTS}"
+        --freeze-dir "${GENARRATIVE_STDB_PUBLISH_BACKUP_FREEZE_DIR:-/var/lib/genarrative/database-backups/publish-minimal-freeze}"
+      )
     else
       echo "[production-stdb-publish] publish 前同步执行 OSS 冷备份（storage-format=${BACKUP_STORAGE_FORMAT}），失败会阻断发布"
       SYNC_BACKUP_ARGS+=(--stop-service spacetimedb.service)