174 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
The total number of enclosures must include the enclosures on external storage 
systems that are licensed for virtualization and the number of control and expansion 
enclosures that are part of your local system. 
The license settings apply only to the system on which you are configuring license 
settings. For remote-copy partnerships, a license is also required on any remote 
systems that are in the partnership.
– Real-time Compression Limit
One license is required for each control or expansion enclosure and each enclosure in 
any external storage systems that use compression.
– Transparent Cloud Tiering
Enter the total number of enclosures that are licensed to create snapshots of volume 
data to cloud storage.
– Encryption License
In addition to these enclosure-based licensed functions, the system also supports 
encryption through a key-based license. Key-based licensing requires an authorization 
code to activate encryption on the system. Only certain models of the control 
enclosures support encryption. 
During initial setup, you can select to activate the license with the authorization code. 
The authorization code is sent with the licensed function authorization documents that 
you receive after purchasing the license. These documents contain the authorization 
codes that are required to obtain keys for the encryption function that you purchased 
for your system. 
Encryption is activated on a per system basis and an active license is required for each 
control enclosure that uses encryption. During system setup, the system detects any 
SAS attached enclosures and applies the license to these enclosures. If control 
enclosures are added and require encryption, more encryption licenses must be 
purchased and activated.
Update System
For more information about the update procedure that uses the GUI, see Chapter 13, “RAS, 
monitoring, and troubleshooting” on page 673.
VMware Virtual Volumes
IBM Spectrum Virtualize V7.6 and later can manage VMware vSphere VVOLs directly in 
cooperation with VMware. It enables VMware virtual machines to get the assigned disk 
capacity directly from IBM Storwize V7000 rather than from the ESXi data store. That 
technique enables storage administrators to control the appropriate usage of storage 
capacity, and to enable enhanced features of storage virtualization directly to the virtual 
machine (such as replication, thin-provisioning, compression, and encryption).