Upgrade resources for General Purpose or I/O optimized Cloud Servers
In the architecture of general purpose Cloud Servers and I/O-optimized servers, you may change the size of your local system storage space in one of two ways:
Note that these instructions apply to General Purpose and I/O optimized servers with local system disks only. Resource allocation for servers that boot from Cloud Block Storage volumes can be changed by using the boot volume to create a new server.
Increasing Available Storage
You can add to the available data storage space of your server by adding Cloud Block Storage volumes. Cloud Block Storage volumes come in two types: SATA for standard performance and SSD for high performance. For more information about Cloud Block Storage, see Create and Attach a Cloud Block Storage Volume.
Creating a new server with more resources
You can migrate your data to a new server with a larger allocation of RAM, vCPUs, data disks, and network throughput if you require more capacity. Note that a saved image cannot be used to create a server with a smaller system disk allocation than the original server.
You can migrate your data to a new server by performing the following steps:
- Create an image of your system disk. (See Create an image or restore a Cloud Server from an image for more information.)
- Back up your data disk, either to a Cloud Block Storage
or with Cloud
- To decide between these options, consider your needs. For information about the advantages of each, see Best Practices for Backing Up Your Data: Cloud Block Storage versus Cloud Backup.
- If you have rsync (Linux) or xcopy/robocopy (Microsoft Windows) installed on your server, you can use it to migrate data from your data disks after you have created the new server in step 3.
- Use the image of your system disk to create a new server with the configuration that you prefer. From the control panel select Servers then select Create Server. Note: Create the server as normal, however, from the Image section you will need to select the image from the Saved tab rather than the stock Rackspace images.
- Copy the data from your data disk backup to your new data disk.
- When you are satisfied with your new server, delete the old one.
You can use Auto Scale to accomplish server resizing keeping your IP address, and have it happen dynamically in response to load. For details, see the Rackspace Auto Scale tip How to use Auto Scale to change the size of your General Purpose or optimized servers.
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