diff --git a/docs/operate/customize/file-uploads/s3.md b/docs/operate/customize/file-uploads/s3.md
index 1e9e627e..cee4eb64 100644
--- a/docs/operate/customize/file-uploads/s3.md
+++ b/docs/operate/customize/file-uploads/s3.md
@@ -57,3 +57,27 @@ To enable file previews in InvenioRDM when using Amazon S3, you must configure C
     }
 ]
 ```
+
+## NetApp StorageGrid
+
+[NetApp StorageGrid](https://www.netapp.com/data-storage/storagegrid/) is an enterprise-grade S3-compatible object storage system designed for large-scale data management.
+
+Unlike AWS S3, StorageGrid requires explicitly specifying allowed methods and headers in the CORS configuration. To enable file uploads and previews, configure your bucket CORS with:
+
+```xml
+<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+  <CORSRule>
+    <AllowedOrigin>https://example.org</AllowedOrigin>
+    <AllowedMethod>HEAD</AllowedMethod>
+    <AllowedMethod>GET</AllowedMethod>
+    <AllowedMethod>PUT</AllowedMethod>
+    <AllowedMethod>POST</AllowedMethod>
+    <AllowedMethod>DELETE</AllowedMethod>
+    <AllowedHeader>*</AllowedHeader>
+    <ExposeHeader>ETag</ExposeHeader>
+    <ExposeHeader>x-amz-meta-custom-header</ExposeHeader>
+  </CORSRule>
+</CORSConfiguration>
+```
+
+This configuration does not authorize users to perform actions on the bucket. It enables the browser's security model to allow cross-origin requests to StorageGrid. Permissions must be configured separately through bucket policies or tenant user permissions.