A content library is a repository for VM templates or other files that can span across vCenter instances within or across locations. This further enhances the consistency, compliance, and efficiency in managing virtual machines. Content libraries are primarily of two kinds:

• Local library
• Subscribed library

A Local library is intended to service a single vCenter Server instance, however one can choose to publish it for users from other vCenter Server instances to subscribe and use. A Subscribed library is carved out of subscribing from a published library.