Configure Ha - Dell EMC Data Domain DD6800 Installation Manual

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Configure HA

Prerequisites
● The HA interconnect between both nodes is connected.
NOTE: Connecting the HA interconnect
● The data connections on both nodes are connected.
About this task
Configure the two nodes as an HA pair.
NOTE: Configuring an HA pair sets the system password on the standby node to match the system password on the active
node, however, that synchronization is not set until the HA configuration is complete. If the HA configuration fails, or if
there is a need to access either node before the HA configuration is complete, use the serial number of each node as the
password.
Steps
1. Verify the certificate subject name on the primary node.
Run the following command: adminaccess certficate show
sysadmin@dd-ha3a# adminaccess certificate show
Subject
Until
--------------------------
------------------------
dd-ha3a.example.com
21:11:28 2022
dd-ha3a.example.com
21:04:53 2024
--------------------------
------------------------
2. Verify the certificate subject name on the standby node.
Run the following command: adminaccess certficate show
sysadmin@dd-ha3b# adminaccess certificate show
Subject
--------------------------
------------------------
dd-ha3b.example.com
22:11:28 2022
dd-ha3b.example.com
22:04:53 2024
--------------------------
------------------------
3. Complete one of the following options:
● If the values in the Subject column on both nodes are different, continue to Step 4.
● If the values in the Subject column on both nodes are the same:
a. Change the hostname of the standby node.
b. Run the adminaccess certificate generate self-signed-cert regenerate-ca command on the
standby node to generate new certificates with the new hostname.
c. Proceed to Step 4.
4. Set the system time on both nodes. The HA configuration will fail if the time on the two nodes is more than 10 seconds
apart.
Run the following command: system set date MMDDhhmm [[CC] YY]
NOTE: After HA configuration is complete, point both nodes to an NTP or Active Directory time server.
68 Configure System for Use
on page 62 describes how to cable the HA interconnect.
Type Application
---- -----------
host https
ca trusted-ca
---- -----------
Type Application
---- -----------
host https
ca trusted-ca
---- -----------
Valid From
------------------------
Tue Aug 8 14:11:28 2018
Tue Aug 8 21:04:53 2018
------------------------
Valid From
------------------------
Tue Aug 8 15:11:28 2018
Tue Aug 8 22:04:53 2018
------------------------
Valid
Sat Aug 7
Mon Aug 7
Valid Until
Sat Aug 7
Mon Aug 7