138 Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.1
On the VVOL page, you can enable or disable the functionality, as shown in Figure 3-94.
Before you can enable VVol, you must set up an NTP server. See the Date and Time settings
to set up the NTP server.
Figure 3-94 Activating VVol
In some HyperSwap configurations, IP quorum applications can be used at the third site as
an alternative to third-site quorum disks. No Fibre Channel connectivity at the third site is
required to use an IP quorum application as the quorum device. The IP quorum application is
a Java application that runs on a host at the third site. The IP network is used for
communication between the IP quorum application and node canisters in the system.
If you currently have a third-site quorum disk, you must remove the third site before you use
an IP quorum application. The round trip time limitations from 80 micro seconds for a IP
quorum are still existent. Figure 3-95 shows where you can download the Java application.
Figure 3-95 IP Quorum
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