You can create two types of content library:

• Local: This is used to store items on a single vCenter Server instance that can be published to allow other users from other vCenter Servers to subscribe to it.
• Subscribed library: This is created when you subscribe to a published library and can be created in the same vCenter Server as the published library or a different vCenter Server instance.

If the subscribed library is created in a different vCenter Server, the option to download all contents or metadata can only be configured in the Create Library wizard. To keep the content of a subscribed library up to date, the subscribed library automatically synchronizes to the source published library on a regular basis. Synchronization of the subscribed library can also be done manually.