Pause optional ai-rem update jobs during backup snapshots

update.sh

@@ -225,13 +225,22 @@ if [[ $UP_WORKER == false ]]; then
     remaining=()
     for unit in "${QUIESCE_SERVICES[@]}"; do
       case ${unit%.service} in
-        ai-rem|ai-rem-healthcheck|ai-rem-backup|ai-rem-prune|ai-rem-healthcheck.timer|ai-rem-backup.timer|ai-rem-prune.timer) ;;
+        ai-rem|ai-rem-healthcheck|ai-rem-backup|ai-rem-prune|ai-rem-managed-update|ai-rem-healthcheck.timer|ai-rem-backup.timer|ai-rem-prune.timer|ai-rem-managed-update.timer) ;;
         *) remaining+=("$unit") ;;
       esac
     done
     for unit in "${ai_rem_units[@]}"; do
       [[ $(systemctl show "$unit" --property=LoadState --value) == loaded ]] || die "Missing ai-rem unit: $unit"
     done
+    # Older hosts have no managed updater yet. When installed, stop its timer
+    # and job before taking the database snapshot; resume them after ai-rem.
+    optional_ai_rem_units=()
+    for unit in ai-rem-managed-update.timer ai-rem-managed-update.service; do
+      if [[ $(systemctl show "$unit" --property=LoadState --value) == loaded ]]; then
+        optional_ai_rem_units+=("$unit")
+      fi
+    done
+    ai_rem_units=("${optional_ai_rem_units[@]}" "${ai_rem_units[@]}")
     QUIESCE_SERVICES=("${ai_rem_units[@]}" "${remaining[@]}")
     echo 'ai-rem included: /srv/ai-rem and /etc/ai-rem; container and maintenance jobs stopped during snapshot'
   fi