diff --git a/docs-2.0/4.deployment-and-installation/1.resource-preparations.md b/docs-2.0/4.deployment-and-installation/1.resource-preparations.md
index a974f60b333..6a922118597 100644
--- a/docs-2.0/4.deployment-and-installation/1.resource-preparations.md
+++ b/docs-2.0/4.deployment-and-installation/1.resource-preparations.md
@@ -200,7 +200,7 @@ For a more common test environment, such as a cluster of 3 machines (named as A,
 | CPU architecture   | x86_64               |
 | Number of CPU core | 48                   |
 | Memory             | 256 GB                |
-| Disk               | 1TB, NVMe SSD |
+| Disk               | 2 * 1.6 TB, NVMe SSD |
 
 ### Supported operating systems for production environments
 
@@ -212,7 +212,7 @@ Users can adjust some of the kernel parameters to better accommodate the need fo
 
 !!! danger
 
-    **DO NOT** deploy a cluster across IDCs.
+    **DO NOT** deploy a single cluster across IDCs (The Enterprise Edtion supports data synchronization between clusters across IDCs).
 
 | Process                                   | Suggested number |
 | ----------------------------------------- | ---------------- |