Dual-Site HA Setup

If you intend for your primary and secondary HA nodes to be in different subnets, run the asc ha --dualSiteHaConf command after the hasetup process is complete. This command creates a configuration file that maps the IP addresses between the subnets and inherits many of the values from the hasetup process.

Note:

Because CloudControl pings each IP address that you enter to ensure that it is valid and not in use, you may notice a short delay before the command returns a new prompt or an error message.

Important:

Do not press Control-C when you run the asc ha --dualSiteHaConf command.

1. Ensure that the primary and secondary nodes are set up correctly.

   See Primary CloudControl Setup and Secondary CloudControl Setup

2. From the CloudControl command line interface, type asc ha --dualSiteHaConf.

3. At the Do you want to configure VIP for secondary? (yes/no) prompt, type yes to configure separate management IPs for the primary and secondary nodes.

   The system displays: Configuring : VIP

4. At the Primary FQDN prompt, type the FQDN for your primary CloudControl node. If there is no FQDN, type the IP address.

5. At the Primary VIP prompt, type the VIP address for your primary CloudControl node.

6. At the Primary Netmask prompt, type the netmask for your primary CloudControl node.

7. At the Secondary FQDN prompt, type the FQDN for your secondary CloudControl node. If there is no FQDN, type the IP address.

8. At the Secondary VIP prompt, type the VIP address for your secondary CloudControl node.

9. At the Secondary Netmask prompt, type the netmask for your secondary CloudControl node.

10. At the Do you want to configure PIP for secondary node (yes/no) prompt, type yes to add a primary/secondary published IP (PIP) pair for a vCenter protected by CloudControl. Answer yes for each vCenter that CloudControl will protect. After you have added all vCenters, type no to start the process.

    The system displays: Configuring : PIP

11. At the vCenter Published DNS on Primary prompt, type the DNS address for your primary node vCenter PIP.

12. At the vCenter PIP on Primary prompt, type the IP address for your primary node vCenter PIP.

13. At the Primary Netmask prompt, type the netmask for your primary node vCenter PIP.

14. At the vCenter Published DNS on Secondary prompt, type the DNS address for your secondary node vCenter PIP.

15. At the vCenter PIP on Secondary prompt, type the IP address for your secondary node vCenter PIP.

16. At the Secondary Netmask prompt, type the netmask for your secondary node vCenter PIP.

17. At the Do you want to configure PIP for secondary node?(yes/no) prompt, type yes to include the PIP information for additional vCenters. If you are finished adding vCenters, type no.

    If you typed yes, repeat steps 11-17 for as many vCenters that you want to add.

    When you type no, the dual site HA configuration process will complete.

Dual-Site HA Configuration Example

[cc-a-vip:primary ~]$ asc ha --dualSiteHaConf

Do you want to configure VIP for secondary?(yes/no) yes

Configuring : VIP

Primary FQDN [cc-a-vip.test.example.com]:

Primary VIP [10.100.246.121]:

Primary Netmask [255.255.0.0]:

Secondary FQDN []: cc-b-vip.test.example.com

Secondary VIP []: 10.120.246.121

Secondary Netmask []: 255.255.0.0

Do you want to configure PIP for secondary node?(yes/no) yes

Configuring : PIP

vCenter Published DNS on Primary []: vc-a-pip.test.example.com

vCenter PIP on Primary []: 10.100.246.129

Primary Netmask [255.255.0.0]:

vCenter Published DNS on Secondary []: vc-b-pip.test.example.com

vCenter PIP on Secondary []: 10.120.246.129

Secondary Netmask []: 255.255.0.0

Do you want to configure PIP for secondary node?(yes/no) no

Success: The High Availability system has been updated