If your configuration changes, you must reinstall IP quorum applications.
If you change the configuration by adding a node, changing a service
IP address, or changing SSL certificates, you must download and install the IP quorum application
again. To download and install the IP quorum
application, complete the following steps:
- In the management GUI, select and download the version of the IP quorum Java™
application. You can also use the command-line interface (CLI) to enter the
mkquorumapp command to generate an IP quorum Java application. The application is stored in the dumps
directory of the system with the file name ip_quorum.jar.
- On the server or host on which you plan to run the IP quorum application, create a separate
directory that is dedicated to the IP quorum application.
- Transfer the IP quorum application from the system to a separate directory on the server or host
that is to run the IP quorum application.
- Use the ping command on the host server to verify that it can establish a
connection with the service IP address of each node in the system.
- On the host, run the command java -jar ip_quorum.jar to initialize the IP
quorum application.
Note: The IP quorum application needs to be running always.
- To verify that the IP quorum application is installed and active, select . The new IP quorum application is displayed in the table of detected applications.
The system automatically selects MDisks for quorum disks.
In a HyperSwap® configuration with IP quorum, the system
automatically selects an MDisk from both sites. These MDisks store metadata that are used for system
recovery.
If you want to select
a specific MDisk to use as quorum disks, select MDisk by Pools and
right-click the MDisk and select . You can also use the lsquorum command on the system CLI to
verify that the IP quorum application is connected and is the active quorum device. If you want to
modify the MDisk that are used for quorum by using the command-line interface, use the
chquorum command.