From 32dc95e7f3b3ba95c6ead7ab7755e9bc85e13598 Mon Sep 17 00:00:00 2001
From: Cathy <24819510+benmaoer@users.noreply.github.com>
Date: Thu, 26 Oct 2023 10:30:33 +0800
Subject: [PATCH] br: add dual region support for google cloud platform
 (#15133)

---
 tidb-cloud/backup-and-restore.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tidb-cloud/backup-and-restore.md b/tidb-cloud/backup-and-restore.md
index 99b59d2ae5405..517b7cf432b80 100644
--- a/tidb-cloud/backup-and-restore.md
+++ b/tidb-cloud/backup-and-restore.md
@@ -96,7 +96,8 @@ To configure the backup schedule, perform the following steps:
 
 > **Note:**
 >
-> The dual region backup feature is currently in beta.
+> - The dual region backup feature is currently in beta.
+> - TiDB Dedicated clusters hosted on Google Cloud work seamlessly with Google Cloud Storage. Similar to Google Cloud Storage, **TiDB Dedicated supports dual-region pairing only within the same multi-region code as Google dual-region storage**. For example, in Asia, currently you must pair Tokyo and Osaka together for dual-region storage. For more information, refer to [Dual-regions](https://cloud.google.com/storage/docs/locations#location-dr).
 
 TiDB Dedicated supports dual region backup by replicating backups from your cluster region to another different region. After you enable this feature, all backups are automatically replicated to the specified region. This provides cross-region data protection and disaster recovery capabilities. It is estimated that approximately 99% of the data can be replicated to the secondary region within an hour.