Chapter 5. Graphical user interface 175
VVOL management is enabled in IBM Storwize V7000 in the System section, as shown in 
Figure 5-70. The NTP server must be configured before enabling VVOL management. It is 
strongly advised to use the same NTP server for ESXi and for IBM Storwize V7000.
Figure 5-70   Enabling VVOLs management
For more information about VVOLs, see the following publications:
/SM590000Quick-start Guide to Configuring VMware Virtual Volumes for Systems Powered by IBM 
Spectrum Virtualize, REDP-5321
/SM590000Configuring VMware Virtual Volumes for Systems Powered by IBM Spectrum Virtualize, 
SG24-8328
IP Quorum
Starting with IBM Spectrum Virtualize V7.6, a new feature was introduced for enhanced 
stretched systems, the IP Quorum application. By using an IP-based quorum application as 
the quorum device for the third site, no Fibre Channel connectivity is required. Java 
applications run on hosts at the third site.
Restriction: You cannot enable VVOLs support until the NTP server is configured in 
Storwize V7000.