Updates to XenServer can be delivered as a Hotfix or a Service Pack. Hotfixes generally supply bug fixes to one or more specific issues; whereas Service Packs contain accumulated bug fixes, and occasionally, feature improvements and enhancements. You must pay careful attention to the Release Note that is published with each update. Each update may have unique installation instructions, particularly with regard to preparatory and post-update operations.
The Install Update wizard allows you to apply the same update to multiple hosts at the same time. The wizard automatically:
Any actions that were taken at the pre-check stage to enable the updates to be applied, such as turning off HA, will be reverted.
This section provides instructions on applying updates automatically using the Download and Install option. This option extracts the update file, opens the Install Update wizard with relevant servers selected.
If you prefer to manually download the update file and apply the update using the Install Update wizard, refer to the section To manually download and apply the updates.
XenCenter enables you to download updates to your local machine and apply the update using the Install Update wizard. To do this: