Virtual volume spaces

Virtual volumes include the following types of space:

User space. The user space contains the user data that is exported as a LUN to a host. Virtual volume user space corresponds to the logical drive regions in a common provisioning group that are available to a host.

Copy space. Copy space contains changed user data for snapshots. Copy space is also known as snapshot space. The space consists of logical drive regions in a common provisioning group that contain copies of user data that has changed since the last snapshot.

Admin space. Admin space contains pointers to the changed user data in the copy space. The space consists of logical drive regions in a common provisioning group that track changes to the virtual volume since the last snapshot.

Learn more: Virtual volumes overview.