diff --git a/server/src/nest/notifications/notification-events.ts b/server/src/nest/notifications/notification-events.ts
index edd9784ba..5b542efc4 100644
--- a/server/src/nest/notifications/notification-events.ts
+++ b/server/src/nest/notifications/notification-events.ts
@@ -39,6 +39,7 @@ export type NotifEventType =
   | 'collab_message'
   | 'packing_tagged'
   | 'version_available'
+  | 'replica_failure'
   | 'synology_session_cleared'
   | 'plugin_notification';
 
@@ -55,12 +56,13 @@ export const ALL_EVENT_TYPES: NotifEventType[] = [
   'collab_message',
   'packing_tagged',
   'version_available',
+  'replica_failure',
   'synology_session_cleared',
   'plugin_notification',
 ];
 
 /** Events that target admins only (shown in admin panel, not in user settings). */
-export const ADMIN_SCOPED_EVENTS = new Set<NotifEventType>(['version_available']);
+export const ADMIN_SCOPED_EVENTS = new Set<NotifEventType>(['version_available', 'replica_failure']);
 
 // Compile-time guard: shared NotificationEventKey and server NotifEventType must
 // stay in sync. It sits next to the union it guards — it used to live in the
diff --git a/server/src/nest/notifications/notifications.module.ts b/server/src/nest/notifications/notifications.module.ts
index 275132121..a5aa951f6 100644
--- a/server/src/nest/notifications/notifications.module.ts
+++ b/server/src/nest/notifications/notifications.module.ts
@@ -4,23 +4,36 @@ import { NotificationsMcp } from './notifications.mcp';
 import { NotificationsService } from './notifications.service';
 import { NotificationPreferencesService } from './notification-preferences.service';
 import { ReminderJobsService } from './reminder-jobs.service';
+import { StorageHealthNotifierService } from './storage-health-notifier.service';
 import { NtfyService } from './transports/ntfy.service';
 import { WebhookService } from './transports/webhook.service';
 import { MailerModule } from './mailer/mailer.module';
 import { AuthModule } from '../auth/auth.module';
 import { SchedulingModule } from '../scheduling/scheduling.module';
+import { StorageModule } from '../storage/storage.module';
 
 /** Notifications domain (L6 leaf module). Registered in AppModule.
  *  AuthModule feeds NotificationsMcp's demo gate; MailerModule carries SMTP,
  *  which lives outside this module so AuthService can send the password-reset
  *  mail without AuthModule and NotificationsModule importing each other.
+ *  StorageModule feeds StorageHealthNotifierService, which bridges replica
+ *  failures into admin notifications — this direction has no cycle (Storage
+ *  imports only AppConfig+Audit+Scheduling).
  *  NotificationsService and NotificationPreferencesService are exported for
  *  in-container consumers (AdminController's dev test send and preferences tab,
  *  the plugin RPC surface, HostSurfaceRpc). */
 @Module({
-  imports: [AuthModule, MailerModule, SchedulingModule],
+  imports: [AuthModule, MailerModule, SchedulingModule, StorageModule],
   controllers: [NotificationsController, AdminNotificationPreferencesController],
-  providers: [NotificationsService, NotificationPreferencesService, WebhookService, NtfyService, NotificationsMcp, ReminderJobsService],
+  providers: [
+    NotificationsService,
+    NotificationPreferencesService,
+    WebhookService,
+    NtfyService,
+    NotificationsMcp,
+    ReminderJobsService,
+    StorageHealthNotifierService,
+  ],
   exports: [NotificationsService, NotificationPreferencesService],
 })
 export class NotificationsModule {}
diff --git a/server/src/nest/notifications/notifications.service.ts b/server/src/nest/notifications/notifications.service.ts
index 9f3eec369..e9b734d57 100644
--- a/server/src/nest/notifications/notifications.service.ts
+++ b/server/src/nest/notifications/notifications.service.ts
@@ -210,6 +210,13 @@ const EVENT_NOTIFICATION_CONFIG: Record<string, EventNotifConfig> = {
     navigateTextKey: 'notif.action.view_admin',
     navigateTarget: () => '/admin',
   },
+  replica_failure: {
+    inAppType: 'navigate',
+    titleKey: 'notif.replica_failure.title',
+    textKey: 'notif.replica_failure.text',
+    navigateTextKey: 'notif.action.view',
+    navigateTarget: () => '/admin?tab=storage',
+  },
   synology_session_cleared: {
     inAppType: 'simple',
     titleKey: 'notifications.synologySessionCleared.title',
diff --git a/server/src/nest/notifications/replica-failure-debouncer.ts b/server/src/nest/notifications/replica-failure-debouncer.ts
new file mode 100644
index 000000000..5419b86c3
--- /dev/null
+++ b/server/src/nest/notifications/replica-failure-debouncer.ts
@@ -0,0 +1,28 @@
+/**
+ * Lazy per-backend debounce (backfill/stats/notifications spec): the first
+ * failure notifies immediately; later failures accumulate and the next one
+ * past the window rides out as a summary carrying the suppressed count. No
+ * timers — the summary is sent on the next failure, which is the only moment
+ * anyone would care. Process-local, like the health ring itself.
+ */
+export class ReplicaFailureDebouncer {
+  private readonly windows = new Map<string, { windowStart: number; suppressed: number }>();
+
+  constructor(
+    private readonly windowMs: number,
+    private readonly now: () => number = Date.now,
+  ) {}
+
+  /** null = suppress; otherwise the suppressed-count to report with this send. */
+  admit(backend: string): number | null {
+    const now = this.now();
+    const window = this.windows.get(backend);
+    if (!window || now - window.windowStart > this.windowMs) {
+      const suppressed = window?.suppressed ?? 0;
+      this.windows.set(backend, { windowStart: now, suppressed: 0 });
+      return suppressed;
+    }
+    window.suppressed += 1;
+    return null;
+  }
+}
diff --git a/server/src/nest/notifications/storage-health-notifier.service.ts b/server/src/nest/notifications/storage-health-notifier.service.ts
new file mode 100644
index 000000000..edc8435a6
--- /dev/null
+++ b/server/src/nest/notifications/storage-health-notifier.service.ts
@@ -0,0 +1,49 @@
+import { Injectable, Logger, OnApplicationBootstrap } from '@nestjs/common';
+import { StorageEventsService } from '../storage/storage-events.service';
+import { NotificationsService } from './notifications.service';
+import { ReplicaFailureDebouncer } from './replica-failure-debouncer';
+
+const DEBOUNCE_WINDOW_MS = 60 * 60 * 1000;
+
+/**
+ * Bridges storage replica failures into the admin notification channels.
+ * Lives HERE (not in StorageModule) because NotificationsModule → AuthModule
+ * → StorageModule — the reverse import would cycle. Subscribes at bootstrap;
+ * the debouncer keeps an outage from becoming a notification storm.
+ */
+@Injectable()
+export class StorageHealthNotifierService implements OnApplicationBootstrap {
+  private readonly logger = new Logger(StorageHealthNotifierService.name);
+  private readonly debouncer = new ReplicaFailureDebouncer(DEBOUNCE_WINDOW_MS);
+
+  constructor(
+    private readonly events: StorageEventsService,
+    private readonly notifications: NotificationsService,
+  ) {}
+
+  onApplicationBootstrap(): void {
+    this.events.onReplicaFailure((failure) => {
+      const suppressed = this.debouncer.admit(failure.backend);
+      if (suppressed === null) return;
+      void this.notifications
+        .send({
+          event: 'replica_failure',
+          actorId: null,
+          scope: 'admin',
+          targetId: 0,
+          params: {
+            backend: failure.backend,
+            key: failure.key,
+            op: failure.op,
+            error: failure.error,
+            suppressed: String(suppressed),
+          },
+        })
+        .catch((err: unknown) => {
+          this.logger.error(
+            `replica_failure notification failed: ${err instanceof Error ? err.message : String(err)}`,
+          );
+        });
+    });
+  }
+}
diff --git a/server/src/nest/notifications/transports/ntfy.service.ts b/server/src/nest/notifications/transports/ntfy.service.ts
index 23288f485..95255259b 100644
--- a/server/src/nest/notifications/transports/ntfy.service.ts
+++ b/server/src/nest/notifications/transports/ntfy.service.ts
@@ -24,6 +24,7 @@ const NTFY_EVENT_META: Partial<Record<NotifEventType, { priority: 1 | 2 | 3 | 4
   collab_message: { priority: 3, tags: ['speech_balloon'] },
   packing_tagged: { priority: 3, tags: ['luggage'] },
   version_available: { priority: 4, tags: ['package'] },
+  replica_failure: { priority: 5, tags: ['warning', 'floppy_disk'] },
   synology_session_cleared: { priority: 3, tags: ['warning'] },
 };
 const NTFY_DEFAULT_META = { priority: 3 as const, tags: [] as string[] };
diff --git a/server/tests/unit/nest/notifications/replica-failure-debouncer.test.ts b/server/tests/unit/nest/notifications/replica-failure-debouncer.test.ts
new file mode 100644
index 000000000..204dd6245
--- /dev/null
+++ b/server/tests/unit/nest/notifications/replica-failure-debouncer.test.ts
@@ -0,0 +1,34 @@
+import { describe, it, expect } from 'vitest';
+import { ReplicaFailureDebouncer } from '../../../../src/nest/notifications/replica-failure-debouncer';
+
+const HOUR = 60 * 60 * 1000;
+
+describe('ReplicaFailureDebouncer', () => {
+  it('DEB-001 first failure per backend is admitted with suppressed=0', () => {
+    let now = 1_000_000;
+    const debouncer = new ReplicaFailureDebouncer(HOUR, () => now);
+    expect(debouncer.admit('s3-bkp')).toBe(0);
+  });
+
+  it('DEB-002 failures inside the window are suppressed; the next one after it carries the count', () => {
+    let now = 1_000_000;
+    const debouncer = new ReplicaFailureDebouncer(HOUR, () => now);
+    expect(debouncer.admit('s3-bkp')).toBe(0);
+    now += 1000;
+    expect(debouncer.admit('s3-bkp')).toBeNull();
+    expect(debouncer.admit('s3-bkp')).toBeNull();
+    now += HOUR;
+    expect(debouncer.admit('s3-bkp')).toBe(2); // the two suppressed ones ride the summary
+    now += 1000;
+    expect(debouncer.admit('s3-bkp')).toBeNull(); // window reset
+  });
+
+  it('DEB-003 backends debounce independently', () => {
+    let now = 1_000_000;
+    const debouncer = new ReplicaFailureDebouncer(HOUR, () => now);
+    expect(debouncer.admit('a')).toBe(0);
+    expect(debouncer.admit('b')).toBe(0);
+    expect(debouncer.admit('a')).toBeNull();
+    expect(debouncer.admit('b')).toBeNull();
+  });
+});
diff --git a/server/tests/unit/nest/notifications/storage-health-notifier.service.test.ts b/server/tests/unit/nest/notifications/storage-health-notifier.service.test.ts
new file mode 100644
index 000000000..6881c966c
--- /dev/null
+++ b/server/tests/unit/nest/notifications/storage-health-notifier.service.test.ts
@@ -0,0 +1,34 @@
+import { describe, it, expect, vi } from 'vitest';
+import { StorageEventsService } from '../../../../src/nest/storage/storage-events.service';
+import { StorageHealthNotifierService } from '../../../../src/nest/notifications/storage-health-notifier.service';
+import type { NotificationsService } from '../../../../src/nest/notifications/notifications.service';
+
+describe('StorageHealthNotifierService', () => {
+  it('NOTIF-001 subscribes on bootstrap and sends an admin-scoped replica_failure with params', () => {
+    const events = new StorageEventsService();
+    const send = vi.fn().mockResolvedValue(undefined);
+    const notifier = new StorageHealthNotifierService(events, { send } as unknown as NotificationsService);
+    notifier.onApplicationBootstrap();
+    events.emitReplicaFailure({ backend: 's3-bkp', key: 'backups/db.zip', op: 'put', error: 'timeout', at: 1 });
+    expect(send).toHaveBeenCalledWith({
+      event: 'replica_failure',
+      actorId: null,
+      scope: 'admin',
+      targetId: 0,
+      params: { backend: 's3-bkp', key: 'backups/db.zip', op: 'put', error: 'timeout', suppressed: '0' },
+    });
+    // Second failure inside the window: suppressed, no second send.
+    events.emitReplicaFailure({ backend: 's3-bkp', key: 'backups/x.zip', op: 'put', error: 'timeout', at: 2 });
+    expect(send).toHaveBeenCalledTimes(1);
+  });
+
+  it('NOTIF-002 a rejected send never throws into the emitter (write path stays safe)', () => {
+    const events = new StorageEventsService();
+    const send = vi.fn().mockRejectedValue(new Error('smtp down'));
+    const notifier = new StorageHealthNotifierService(events, { send } as unknown as NotificationsService);
+    notifier.onApplicationBootstrap();
+    expect(() =>
+      events.emitReplicaFailure({ backend: 'b', key: 'k', op: 'delete', error: 'e', at: 3 }),
+    ).not.toThrow();
+  });
+});
diff --git a/shared/src/i18n/ar/externalNotifications.ts b/shared/src/i18n/ar/externalNotifications.ts
index 52a22aa4e..4818ec6cb 100644
--- a/shared/src/i18n/ar/externalNotifications.ts
+++ b/shared/src/i18n/ar/externalNotifications.ts
@@ -52,6 +52,12 @@ const ar: NotificationLocale = {
       title: 'إصدار TREK جديد متاح',
       body: `TREK ${p.version} متاح الآن. تفضل بزيارة لوحة الإدارة للتحديث.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'تمت إعادة تعيين جلسة Synology',
       body: 'تغيّر حسابك أو رابط Synology. تم تسجيل خروجك من Synology Photos.',
diff --git a/shared/src/i18n/ar/notif.ts b/shared/src/i18n/ar/notif.ts
index eef17db83..b56adcd0a 100644
--- a/shared/src/i18n/ar/notif.ts
+++ b/shared/src/i18n/ar/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} عيّنك في {category} في {trip}',
   'notif.version_available.title': 'إصدار جديد متاح',
   'notif.version_available.text': 'TREK {version} متاح الآن',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'عرض الرحلة',
   'notif.action.view_collab': 'عرض الرسائل',
   'notif.action.view_packing': 'عرض التعبئة',
diff --git a/shared/src/i18n/br/externalNotifications.ts b/shared/src/i18n/br/externalNotifications.ts
index 91fd6b4e0..5fe6f1f17 100644
--- a/shared/src/i18n/br/externalNotifications.ts
+++ b/shared/src/i18n/br/externalNotifications.ts
@@ -52,6 +52,12 @@ const br: NotificationLocale = {
       title: 'Nova versão do TREK disponível',
       body: `O TREK ${p.version} está disponível. Acesse o painel de administração para atualizar.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Sessão Synology encerrada',
       body: 'Sua conta ou URL do Synology foi alterada. Você foi desconectado do Synology Photos.',
diff --git a/shared/src/i18n/br/notif.ts b/shared/src/i18n/br/notif.ts
index 2f0711f2c..955123f11 100644
--- a/shared/src/i18n/br/notif.ts
+++ b/shared/src/i18n/br/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} atribuiu você a {category} em {trip}',
   'notif.version_available.title': 'Nova versão disponível',
   'notif.version_available.text': 'TREK {version} está disponível',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Ver viagem',
   'notif.action.view_collab': 'Ver mensagens',
   'notif.action.view_packing': 'Ver bagagem',
diff --git a/shared/src/i18n/ca/externalNotifications.ts b/shared/src/i18n/ca/externalNotifications.ts
index f33138356..bb04cc03c 100644
--- a/shared/src/i18n/ca/externalNotifications.ts
+++ b/shared/src/i18n/ca/externalNotifications.ts
@@ -48,6 +48,12 @@ const ca: NotificationLocale = {
       title: 'Versió nova de TREK disponible',
       body: `TREK ${p.version} ja està disponible. Visita el panell d'administració per actualitzar.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Sessió de Synology tancada',
       body: 'El teu compte o URL de Synology ha canviat. Has tancat la sessió a Synology Photos.',
diff --git a/shared/src/i18n/ca/notif.ts b/shared/src/i18n/ca/notif.ts
index 28fa58849..e2843b7d1 100644
--- a/shared/src/i18n/ca/notif.ts
+++ b/shared/src/i18n/ca/notif.ts
@@ -25,6 +25,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} et va assignar a {category} a {trip}',
   'notif.version_available.title': 'Versió nova disponible',
   'notif.version_available.text': 'TREK {version} ja està disponible',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Mostra el viatge',
   'notif.action.view_collab': 'Mostra els missatges',
   'notif.action.view_packing': "Mostra l'equipatge",
diff --git a/shared/src/i18n/cs/externalNotifications.ts b/shared/src/i18n/cs/externalNotifications.ts
index 10cbc237c..0f1a8d625 100644
--- a/shared/src/i18n/cs/externalNotifications.ts
+++ b/shared/src/i18n/cs/externalNotifications.ts
@@ -52,6 +52,12 @@ const cs: NotificationLocale = {
       title: 'Nová verze TREK dostupná',
       body: `TREK ${p.version} je nyní dostupný. Navštivte administrátorský panel pro aktualizaci.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Relace Synology byla zrušena',
       body: 'Váš účet nebo URL Synology se změnil. Byli jste odhlášeni ze Synology Photos.',
diff --git a/shared/src/i18n/cs/notif.ts b/shared/src/i18n/cs/notif.ts
index f7d8255b3..66588a95a 100644
--- a/shared/src/i18n/cs/notif.ts
+++ b/shared/src/i18n/cs/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} vás přiřadil k {category} v {trip}',
   'notif.version_available.title': 'Nová verze dostupná',
   'notif.version_available.text': 'TREK {version} je nyní dostupný',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Zobrazit výlet',
   'notif.action.view_collab': 'Zobrazit zprávy',
   'notif.action.view_packing': 'Zobrazit balení',
diff --git a/shared/src/i18n/de/externalNotifications.ts b/shared/src/i18n/de/externalNotifications.ts
index 5509451f7..d456a1b19 100644
--- a/shared/src/i18n/de/externalNotifications.ts
+++ b/shared/src/i18n/de/externalNotifications.ts
@@ -52,6 +52,12 @@ const de: NotificationLocale = {
       title: 'Neue TREK-Version verfügbar',
       body: `TREK ${p.version} ist jetzt verfügbar. Besuche das Admin-Panel zum Aktualisieren.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology-Sitzung beendet',
       body: 'Dein Synology-Konto oder die URL hat sich geändert. Du wurdest von Synology Photos abgemeldet.',
diff --git a/shared/src/i18n/de/notif.ts b/shared/src/i18n/de/notif.ts
index be71805b1..4da749a44 100644
--- a/shared/src/i18n/de/notif.ts
+++ b/shared/src/i18n/de/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} hat dich zu {category} in {trip} zugewiesen',
   'notif.version_available.title': 'Neue Version verfügbar',
   'notif.version_available.text': 'TREK {version} ist jetzt verfügbar',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Reise ansehen',
   'notif.action.view_collab': 'Nachrichten ansehen',
   'notif.action.view_packing': 'Packliste ansehen',
diff --git a/shared/src/i18n/en/externalNotifications.ts b/shared/src/i18n/en/externalNotifications.ts
index 53c6c7fbf..846179460 100644
--- a/shared/src/i18n/en/externalNotifications.ts
+++ b/shared/src/i18n/en/externalNotifications.ts
@@ -52,6 +52,12 @@ const en: NotificationLocale = {
       title: 'New TREK version available',
       body: `TREK ${p.version} is now available. Visit the admin panel to update.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology session cleared',
       body: 'Your Synology account or URL changed. You have been logged out of Synology Photos.',
diff --git a/shared/src/i18n/en/notif.ts b/shared/src/i18n/en/notif.ts
index ed191640d..178d7136d 100644
--- a/shared/src/i18n/en/notif.ts
+++ b/shared/src/i18n/en/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} assigned you to {category} in {trip}',
   'notif.version_available.title': 'New Version Available',
   'notif.version_available.text': 'TREK {version} is now available',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'View Trip',
   'notif.action.view_collab': 'View Messages',
   'notif.action.view_packing': 'View Packing',
diff --git a/shared/src/i18n/es/externalNotifications.ts b/shared/src/i18n/es/externalNotifications.ts
index 853e26290..96ecc1058 100644
--- a/shared/src/i18n/es/externalNotifications.ts
+++ b/shared/src/i18n/es/externalNotifications.ts
@@ -52,6 +52,12 @@ const es: NotificationLocale = {
       title: 'Nueva versión de TREK disponible',
       body: `TREK ${p.version} ya está disponible. Visita el panel de administración para actualizar.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Sesión de Synology cerrada',
       body: 'Tu cuenta o URL de Synology ha cambiado. Has cerrado sesión en Synology Photos.',
diff --git a/shared/src/i18n/es/notif.ts b/shared/src/i18n/es/notif.ts
index 3bf92e58b..605225ab7 100644
--- a/shared/src/i18n/es/notif.ts
+++ b/shared/src/i18n/es/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} te asignó a {category} en {trip}',
   'notif.version_available.title': 'Nueva versión disponible',
   'notif.version_available.text': 'TREK {version} ya está disponible',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Ver viaje',
   'notif.action.view_collab': 'Ver mensajes',
   'notif.action.view_packing': 'Ver equipaje',
diff --git a/shared/src/i18n/externalNotifications/types.ts b/shared/src/i18n/externalNotifications/types.ts
index cdb12f0db..534a4f58f 100644
--- a/shared/src/i18n/externalNotifications/types.ts
+++ b/shared/src/i18n/externalNotifications/types.ts
@@ -33,6 +33,7 @@ export type NotificationEventKey =
   | 'collab_message'
   | 'packing_tagged'
   | 'version_available'
+  | 'replica_failure'
   | 'synology_session_cleared'
   | 'plugin_notification';
 
diff --git a/shared/src/i18n/fr/externalNotifications.ts b/shared/src/i18n/fr/externalNotifications.ts
index 9146e7d07..e49d8dd4f 100644
--- a/shared/src/i18n/fr/externalNotifications.ts
+++ b/shared/src/i18n/fr/externalNotifications.ts
@@ -52,6 +52,12 @@ const fr: NotificationLocale = {
       title: 'Nouvelle version TREK disponible',
       body: `TREK ${p.version} est maintenant disponible. Rendez-vous dans le panneau d'administration pour mettre à jour.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Session Synology effacée',
       body: 'Votre compte ou URL Synology a changé. Vous avez été déconnecté de Synology Photos.',
diff --git a/shared/src/i18n/fr/notif.ts b/shared/src/i18n/fr/notif.ts
index 267100444..43ab30443 100644
--- a/shared/src/i18n/fr/notif.ts
+++ b/shared/src/i18n/fr/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} vous a assigné à {category} dans {trip}',
   'notif.version_available.title': 'Nouvelle version disponible',
   'notif.version_available.text': 'TREK {version} est maintenant disponible',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Voir le voyage',
   'notif.action.view_collab': 'Voir les messages',
   'notif.action.view_packing': 'Voir les bagages',
diff --git a/shared/src/i18n/gr/externalNotifications.ts b/shared/src/i18n/gr/externalNotifications.ts
index 88cc8f89e..28bf22688 100644
--- a/shared/src/i18n/gr/externalNotifications.ts
+++ b/shared/src/i18n/gr/externalNotifications.ts
@@ -52,6 +52,12 @@ const gr: NotificationLocale = {
       title: 'Νέα έκδοση TREK διαθέσιμη',
       body: `Η έκδοση TREK ${p.version} είναι τώρα διαθέσιμη. Επισκεφθείτε τον πίνακα διαχείρισης για να ενημερώσετε.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Η σύνδεση Synology τερματίστηκε',
       body: 'Ο λογαριασμός σας Synology ή το URL άλλαξε. Έχετε αποσυνδεθεί από το Synology Photos.',
diff --git a/shared/src/i18n/gr/notif.ts b/shared/src/i18n/gr/notif.ts
index 90f463d50..d8ce8431b 100644
--- a/shared/src/i18n/gr/notif.ts
+++ b/shared/src/i18n/gr/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': 'Ο/Η {actor} σας ανέθεσε στο {category} του {trip}',
   'notif.version_available.title': 'Νέα Έκδοση Διαθέσιμη',
   'notif.version_available.text': 'Το TREK {version} είναι τώρα διαθέσιμο',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Προβολή Ταξιδιού',
   'notif.action.view_collab': 'Προβολή Μηνυμάτων',
   'notif.action.view_packing': 'Προβολή Αποσκευών',
diff --git a/shared/src/i18n/hu/externalNotifications.ts b/shared/src/i18n/hu/externalNotifications.ts
index 10b02b5a9..7d7cf8fbc 100644
--- a/shared/src/i18n/hu/externalNotifications.ts
+++ b/shared/src/i18n/hu/externalNotifications.ts
@@ -52,6 +52,12 @@ const hu: NotificationLocale = {
       title: 'Új TREK verzió érhető el',
       body: `A TREK ${p.version} elérhető. Látogasson el az adminisztrációs panelre a frissítéshez.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology munkamenet törölve',
       body: 'A Synology fiókja vagy URL-je megváltozott. Kijelentkeztek a Synology Photos-ból.',
diff --git a/shared/src/i18n/hu/notif.ts b/shared/src/i18n/hu/notif.ts
index ee4e8a5be..39959647c 100644
--- a/shared/src/i18n/hu/notif.ts
+++ b/shared/src/i18n/hu/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} hozzárendelte Önt a {category} kategóriához a(z) {trip} utazásban',
   'notif.version_available.title': 'Új verzió elérhető',
   'notif.version_available.text': 'A TREK {version} elérhető',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Utazás megtekintése',
   'notif.action.view_collab': 'Üzenetek megtekintése',
   'notif.action.view_packing': 'Csomagolás megtekintése',
diff --git a/shared/src/i18n/id/externalNotifications.ts b/shared/src/i18n/id/externalNotifications.ts
index e40667766..37770e203 100644
--- a/shared/src/i18n/id/externalNotifications.ts
+++ b/shared/src/i18n/id/externalNotifications.ts
@@ -52,6 +52,12 @@ const id: NotificationLocale = {
       title: 'Versi TREK baru tersedia',
       body: `TREK ${p.version} sekarang tersedia. Kunjungi panel admin untuk memperbarui.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Sesi Synology dihapus',
       body: 'Akun atau URL Synology Anda berubah. Anda telah keluar dari Synology Photos.',
diff --git a/shared/src/i18n/id/notif.ts b/shared/src/i18n/id/notif.ts
index 841f53948..ac7e6e96b 100644
--- a/shared/src/i18n/id/notif.ts
+++ b/shared/src/i18n/id/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} menugaskanmu ke {category} di {trip}',
   'notif.version_available.title': 'Versi Baru Tersedia',
   'notif.version_available.text': 'TREK {version} kini tersedia',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Lihat Perjalanan',
   'notif.action.view_collab': 'Lihat Pesan',
   'notif.action.view_packing': 'Lihat Perlengkapan',
diff --git a/shared/src/i18n/it/externalNotifications.ts b/shared/src/i18n/it/externalNotifications.ts
index 29fc136f4..c634d269d 100644
--- a/shared/src/i18n/it/externalNotifications.ts
+++ b/shared/src/i18n/it/externalNotifications.ts
@@ -52,6 +52,12 @@ const it: NotificationLocale = {
       title: 'Nuova versione TREK disponibile',
       body: `TREK ${p.version} è ora disponibile. Visita il pannello di amministrazione per aggiornare.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Sessione Synology rimossa',
       body: 'Il tuo account o URL Synology è cambiato. Sei stato disconnesso da Synology Photos.',
diff --git a/shared/src/i18n/it/notif.ts b/shared/src/i18n/it/notif.ts
index 5278aae7b..c6fa26793 100644
--- a/shared/src/i18n/it/notif.ts
+++ b/shared/src/i18n/it/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} ti ha assegnato a {category} in {trip}',
   'notif.version_available.title': 'Nuova versione disponibile',
   'notif.version_available.text': 'TREK {version} è ora disponibile',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Vedi viaggio',
   'notif.action.view_collab': 'Vedi messaggi',
   'notif.action.view_packing': 'Vedi bagagli',
diff --git a/shared/src/i18n/ja/externalNotifications.ts b/shared/src/i18n/ja/externalNotifications.ts
index 7b5a91957..4c2bddfd2 100644
--- a/shared/src/i18n/ja/externalNotifications.ts
+++ b/shared/src/i18n/ja/externalNotifications.ts
@@ -52,6 +52,12 @@ const ja: NotificationLocale = {
       title: '新しいTREKバージョンが利用可能',
       body: `TREK ${p.version}が利用可能になりました。管理パネルからアップデートしてください。`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synologyセッションがクリアされました',
       body: 'SynologyアカウントまたはURLが変更されました。Synology Photosからログアウトされました。',
diff --git a/shared/src/i18n/ja/notif.ts b/shared/src/i18n/ja/notif.ts
index 58a72cf73..bbe89e48f 100644
--- a/shared/src/i18n/ja/notif.ts
+++ b/shared/src/i18n/ja/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor}が「{trip}」の{category}をあなたに割り当てました',
   'notif.version_available.title': '新しいバージョンがあります',
   'notif.version_available.text': 'TREK {version}が利用可能です',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': '旅行を見る',
   'notif.action.view_collab': 'メッセージを見る',
   'notif.action.view_packing': '持ち物を見る',
diff --git a/shared/src/i18n/ko/externalNotifications.ts b/shared/src/i18n/ko/externalNotifications.ts
index 5209cfc27..e40f4960e 100644
--- a/shared/src/i18n/ko/externalNotifications.ts
+++ b/shared/src/i18n/ko/externalNotifications.ts
@@ -52,6 +52,12 @@ const ko: NotificationLocale = {
       title: '새 TREK 버전 사용 가능',
       body: `TREK ${p.version}을 사용할 수 있습니다. 관리자 패널에서 업데이트하세요.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology 세션이 초기화되었습니다',
       body: 'Synology 계정 또는 URL이 변경되었습니다. Synology Photos에서 로그아웃되었습니다.',
diff --git a/shared/src/i18n/ko/notif.ts b/shared/src/i18n/ko/notif.ts
index 339095447..c2a4d3de4 100644
--- a/shared/src/i18n/ko/notif.ts
+++ b/shared/src/i18n/ko/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor}이(가) {trip}의 {category}에 배정했습니다',
   'notif.version_available.title': '새 버전 사용 가능',
   'notif.version_available.text': 'TREK {version}이(가) 사용 가능합니다',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': '여행 보기',
   'notif.action.view_collab': '메시지 보기',
   'notif.action.view_packing': '짐 목록 보기',
diff --git a/shared/src/i18n/nl/externalNotifications.ts b/shared/src/i18n/nl/externalNotifications.ts
index 357214326..79e41e566 100644
--- a/shared/src/i18n/nl/externalNotifications.ts
+++ b/shared/src/i18n/nl/externalNotifications.ts
@@ -52,6 +52,12 @@ const nl: NotificationLocale = {
       title: 'Nieuwe TREK-versie beschikbaar',
       body: `TREK ${p.version} is nu beschikbaar. Bezoek het beheerderspaneel om bij te werken.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology-sessie gewist',
       body: 'Je Synology-account of URL is gewijzigd. Je bent uitgelogd bij Synology Photos.',
diff --git a/shared/src/i18n/nl/notif.ts b/shared/src/i18n/nl/notif.ts
index 33c15be5e..16c0ee366 100644
--- a/shared/src/i18n/nl/notif.ts
+++ b/shared/src/i18n/nl/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} heeft je toegewezen aan {category} in {trip}',
   'notif.version_available.title': 'Nieuwe versie beschikbaar',
   'notif.version_available.text': 'TREK {version} is nu beschikbaar',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Reis bekijken',
   'notif.action.view_collab': 'Berichten bekijken',
   'notif.action.view_packing': 'Paklijst bekijken',
diff --git a/shared/src/i18n/pl/externalNotifications.ts b/shared/src/i18n/pl/externalNotifications.ts
index 84d8fa48f..b4302ea64 100644
--- a/shared/src/i18n/pl/externalNotifications.ts
+++ b/shared/src/i18n/pl/externalNotifications.ts
@@ -52,6 +52,12 @@ const pl: NotificationLocale = {
       title: 'Nowa wersja TREK dostępna',
       body: `TREK ${p.version} jest teraz dostępny. Odwiedź panel administracyjny, aby zaktualizować.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Sesja Synology wyczyszczona',
       body: 'Twoje konto lub URL Synology uległo zmianie. Zostałeś wylogowany z Synology Photos.',
diff --git a/shared/src/i18n/pl/notif.ts b/shared/src/i18n/pl/notif.ts
index c6811b4a3..60f5cc13b 100644
--- a/shared/src/i18n/pl/notif.ts
+++ b/shared/src/i18n/pl/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} przypisał Cię do {category} w {trip}',
   'notif.version_available.title': 'Nowa wersja dostępna',
   'notif.version_available.text': 'TREK {version} jest teraz dostępny',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Zobacz podróż',
   'notif.action.view_collab': 'Zobacz wiadomości',
   'notif.action.view_packing': 'Zobacz pakowanie',
diff --git a/shared/src/i18n/ru/externalNotifications.ts b/shared/src/i18n/ru/externalNotifications.ts
index 41ab512a2..2ea2abb42 100644
--- a/shared/src/i18n/ru/externalNotifications.ts
+++ b/shared/src/i18n/ru/externalNotifications.ts
@@ -52,6 +52,12 @@ const ru: NotificationLocale = {
       title: 'Доступна новая версия TREK',
       body: `TREK ${p.version} теперь доступен. Перейдите в панель администратора для обновления.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Сессия Synology сброшена',
       body: 'Ваш аккаунт или URL Synology изменился. Вы вышли из Synology Photos.',
diff --git a/shared/src/i18n/ru/notif.ts b/shared/src/i18n/ru/notif.ts
index ee67d0b21..916ec5ff0 100644
--- a/shared/src/i18n/ru/notif.ts
+++ b/shared/src/i18n/ru/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} назначил вас в {category} в {trip}',
   'notif.version_available.title': 'Доступна новая версия',
   'notif.version_available.text': 'TREK {version} теперь доступен',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Открыть поездку',
   'notif.action.view_collab': 'Открыть сообщения',
   'notif.action.view_packing': 'Открыть упаковку',
diff --git a/shared/src/i18n/sv/externalNotifications.ts b/shared/src/i18n/sv/externalNotifications.ts
index c1c5d1605..fac796016 100644
--- a/shared/src/i18n/sv/externalNotifications.ts
+++ b/shared/src/i18n/sv/externalNotifications.ts
@@ -52,6 +52,12 @@ const en: NotificationLocale = {
       title: 'Ny TREK version tillgänglig',
       body: `TREK ${p.version} är nu tillgänglig. Gå till adminpanelen för att uppdatera.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology session rensad',
       body: 'Ditt Synology-konto eller din webbadress har ändrats. Du har loggats ut från Synology Photos.',
diff --git a/shared/src/i18n/sv/notif.ts b/shared/src/i18n/sv/notif.ts
index 65506fd73..fe8901664 100644
--- a/shared/src/i18n/sv/notif.ts
+++ b/shared/src/i18n/sv/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} har tilldelat dig {category} i {trip}',
   'notif.version_available.title': 'Ny version tillgänglig',
   'notif.version_available.text': 'TREK {version} finns nu tillgängligt',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Visa resan',
   'notif.action.view_collab': 'Visa meddelanden',
   'notif.action.view_packing': 'Visa förpackning',
diff --git a/shared/src/i18n/tr/externalNotifications.ts b/shared/src/i18n/tr/externalNotifications.ts
index 282d4a791..037f7eaca 100644
--- a/shared/src/i18n/tr/externalNotifications.ts
+++ b/shared/src/i18n/tr/externalNotifications.ts
@@ -52,6 +52,12 @@ const tr: NotificationLocale = {
       title: 'Yeni TREK sürümü mevcut',
       body: `TREK ${p.version} artık mevcut. Güncellemek için yönetici panelini ziyaret edin.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology oturumu temizlendi',
       body: 'Synology hesabınız veya URL değişti. Synology Photos oturumunuz kapatıldı.',
diff --git a/shared/src/i18n/tr/notif.ts b/shared/src/i18n/tr/notif.ts
index 4ec97aef3..ade756a28 100644
--- a/shared/src/i18n/tr/notif.ts
+++ b/shared/src/i18n/tr/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} sizi {trip} içinde {category} kategorisine atadı',
   'notif.version_available.title': 'Yeni Sürüm Mevcut',
   'notif.version_available.text': 'TREK {version} artık kullanılabilir',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Seyahati Görüntüle',
   'notif.action.view_collab': 'Mesajları Görüntüle',
   'notif.action.view_packing': 'Paket listesini görüntüle',
diff --git a/shared/src/i18n/uk/externalNotifications.ts b/shared/src/i18n/uk/externalNotifications.ts
index de83ed167..6ab90b7b8 100644
--- a/shared/src/i18n/uk/externalNotifications.ts
+++ b/shared/src/i18n/uk/externalNotifications.ts
@@ -52,6 +52,12 @@ const uk: NotificationLocale = {
       title: 'Доступна нова версія TREK',
       body: `TREK ${p.version} тепер доступний. Перейдіть до панелі адміністратора для оновлення.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Сеанс Synology скинуто',
       body: 'Ваш обліковий запис або URL Synology змінився. Ви вийшли з Synology Photos.',
diff --git a/shared/src/i18n/uk/notif.ts b/shared/src/i18n/uk/notif.ts
index 0ae172271..565e6af52 100644
--- a/shared/src/i18n/uk/notif.ts
+++ b/shared/src/i18n/uk/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} призначив вас у {category} у {trip}',
   'notif.version_available.title': 'Доступна нова версія',
   'notif.version_available.text': 'TREK {version} тепер доступний',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Відкрити поїздку',
   'notif.action.view_collab': 'Відкрити повідомлення',
   'notif.action.view_packing': 'Відкрити пакування',
diff --git a/shared/src/i18n/vi/externalNotifications.ts b/shared/src/i18n/vi/externalNotifications.ts
index ca4ab2830..c5101dfc3 100644
--- a/shared/src/i18n/vi/externalNotifications.ts
+++ b/shared/src/i18n/vi/externalNotifications.ts
@@ -52,6 +52,12 @@ const en: NotificationLocale = {
       title: 'Đã có phiên bản TREK mới',
       body: `TREK ${p.version} có bản mới. Vui lòng truy cập bảng điều khiển quản trị để cập nhật.`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Đã xóa phiên Synology',
       body: 'Tài khoản Synology của bạn hoặc URL đã thay đổi. Bạn đã đăng xuất khỏi Synology Photos.',
diff --git a/shared/src/i18n/vi/notif.ts b/shared/src/i18n/vi/notif.ts
index a2dcb9dfc..980cf2fbf 100644
--- a/shared/src/i18n/vi/notif.ts
+++ b/shared/src/i18n/vi/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} đã giao cho bạn {category} trong {trip}',
   'notif.version_available.title': 'Phiên bản mới có sẵn',
   'notif.version_available.text': 'TREK {version} hiện có sẵn',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': 'Xem chuyến đi',
   'notif.action.view_collab': 'Xem tin nhắn',
   'notif.action.view_packing': 'Xem đóng gói',
diff --git a/shared/src/i18n/zh-TW/externalNotifications.ts b/shared/src/i18n/zh-TW/externalNotifications.ts
index 416066206..6888cbd3c 100644
--- a/shared/src/i18n/zh-TW/externalNotifications.ts
+++ b/shared/src/i18n/zh-TW/externalNotifications.ts
@@ -52,6 +52,12 @@ const zhTW: NotificationLocale = {
       title: '新版 TREK 可用',
       body: `TREK ${p.version} 現已可用。請前往管理面板進行更新。`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology 工作階段已清除',
       body: '您的 Synology 帳戶或 URL 已變更，您已登出 Synology Photos。',
diff --git a/shared/src/i18n/zh-TW/notif.ts b/shared/src/i18n/zh-TW/notif.ts
index ade8e2911..f2e6a0299 100644
--- a/shared/src/i18n/zh-TW/notif.ts
+++ b/shared/src/i18n/zh-TW/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} 在 {trip} 中將 {category} 指派給你',
   'notif.version_available.title': '有新版本可用',
   'notif.version_available.text': 'TREK {version} 現已推出',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': '查看旅行',
   'notif.action.view_collab': '查看訊息',
   'notif.action.view_packing': '查看打包',
diff --git a/shared/src/i18n/zh/externalNotifications.ts b/shared/src/i18n/zh/externalNotifications.ts
index 6fdec2485..75311b740 100644
--- a/shared/src/i18n/zh/externalNotifications.ts
+++ b/shared/src/i18n/zh/externalNotifications.ts
@@ -52,6 +52,12 @@ const zh: NotificationLocale = {
       title: '新版 TREK 可用',
       body: `TREK ${p.version} 现已可用。请前往管理面板进行更新。`,
     }),
+    replica_failure: (p) => ({
+      title: 'Storage replica failure',
+      body:
+        `Replica write failed on '${p.backend}': ${p.op} of ${p.key} — ${p.error}.` +
+        (p.suppressed !== '0' ? ` ${p.suppressed} more failures were suppressed since the last notification.` : ''),
+    }),
     synology_session_cleared: () => ({
       title: 'Synology 会话已清除',
       body: '您的 Synology 账户或 URL 已更改，您已退出 Synology Photos。',
diff --git a/shared/src/i18n/zh/notif.ts b/shared/src/i18n/zh/notif.ts
index 7f2cd5659..ad2b639b5 100644
--- a/shared/src/i18n/zh/notif.ts
+++ b/shared/src/i18n/zh/notif.ts
@@ -27,6 +27,8 @@ const notif: TranslationStrings = {
   'notif.packing_tagged.text': '{actor} 将您分配到 {trip} 中的 {category}',
   'notif.version_available.title': '新版本可用',
   'notif.version_available.text': 'TREK {version} 现已可用',
+  'notif.replica_failure.title': 'Storage replica failure',
+  'notif.replica_failure.text': "Replica write failed on '{backend}': {op} of {key} — {error}",
   'notif.action.view_trip': '查看旅行',
   'notif.action.view_collab': '查看消息',
   'notif.action.view_packing': '查看行李',