# Configuring additional upload buffer or cache storage
As your application needs change, you can increase the gateway's upload buffer or cache storage capacity. You can add storage capacity to your gateway without interrupting functionality or causing downtime. When you add more storage, you do so with the gateway VM turned on.
**Important**
When adding cache or upload buffer to an existing gateway, you must create new disks on the gateway host hypervisor or Amazon EC2 instance. Do not remove or change the size of existing disks that have already been allocated as cache or upload buffer.
**To configure additional upload buffer or cache storage for your gateway**
1. Provision one or more new disks on your gateway host hypervisor or Amazon EC2 instance. For information about how to provision a disk on a hypervisor, see your hypervisor's documentation. For information about provisioning Amazon EBS volumes for an Amazon EC2 instance, see [Amazon EBS volumes](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volumes.html) in the *Amazon Elastic Compute Cloud User Guide for Linux Instances*. In the following steps, you will configure this disk as upload buffer or cache storage.
1. Open the Storage Gateway console at [https://console.aws.amazon.com/storagegateway/home](https://console.aws.amazon.com/storagegateway/).
1. In the navigation pane, choose **Gateways**.
1. Search for your gateway and select it from the list.
1. From the **Actions** menu, choose **Configure storage**.
1. In the **Configure storage** section, identify the disks you provisioned. If you don't see your disks, choose the refresh icon to refresh the list. For each disk, choose either **UPLOAD BUFFER** or **CACHE STORAGE** from the **Allocated to** drop-down menu.
**Note**
**UPLOAD BUFFER** is the only available option for allocating disks on Stored Volume Gateways.
1. Choose **Save changes** to save your configuration settings.