---
title: "Enable Fast Disaster Recovery"
slug: "enable-fast-disaster-recovery-2-1-1"
tags: ["7.11", "Edge Filer", "Gateway", "Filer"]
updated: 2025-11-02T15:00:45Z
published: 2025-11-02T15:00:45Z
canonical: "kb.ctera.com/enable-fast-disaster-recovery-2-1-1"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.ctera.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Enable Fast Disaster Recovery

Business continuity is an organization's ability to ensure operations, and core business functions are not severely impacted by a disaster or unplanned incident that take critical systems offline. Being able to recover from a disaster is categorized by two factors: Recovery Time Objective (RTO) and Recovery Point Objective (RPO). RTO is the maximum time allowed to get the systems back online, and RPO is the maximum amount of data loss that can be suffered.

If a CTERA Edge Filer fails, after setting up a replacement, the metadata from the CTERA Portal is downloaded quickly so that the stub files are almost immediately available on the replacement CTERA Edge Filer. In addition to the fast download of stub files, you can enable **Instant Disaster Recovery** so that both the metadata and data are populated to the replacement CTERA Edge Filer based on priority: When a user attempts to access content that hasn't yet been downloaded as a stub, as part of the metadata download, that content receives download priority and is populated in real-time, so it becomes available to users immediately.

          **Note**

          

When the next generation file system is used, **Instant Disaster Recovery** is enabled and cannot be disabled.

When the next generation file system is **not** used, for example after upgrading the edge filer, enabling **Instant Disaster Recovery** can have a negative impact on ongoing use of the edge filer and CTERA recommends only enabling it when populating an edge filer from the CTERA Portal for the first time, after a disaster, and disabling it once the edge filer is populated.

**To enable instant disaster recovery:**

1. In the **Configuration** view, select **Cloud Drive > Cloud Drive** in the navigation pane.  

The **Cloud Drive** page is displayed.  

![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-9YRNQHJ5.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A18%3A37Z&se=2026-11-11T05%3A18%3A37Z&sr=c&sp=r&sig=Q82%2BqLtD2SGwi7zd8%2FYjUiFKZfVc6tj%2FpcG6jTLpKDA%3D)
2. Click **Settings**.  

The **Cloud Drive Settings** window is displayed.  

![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-76LJ2XC3.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A18%3A37Z&se=2026-11-11T05%3A18%3A37Z&sr=c&sp=r&sig=Q82%2BqLtD2SGwi7zd8%2FYjUiFKZfVc6tj%2FpcG6jTLpKDA%3D)
3. Change the **Instant Disaster Recovery** to **Enabled**.