Moving your CloudByte ESA to a new network environment

When you get started with ElastiStor Appliance, the initial step is to configure the network settings. You have to modify some or all of the default network configuration settings depending on your environment.

All CloudByte ElastiStor Appliance models have the following default network configurations. Go through the following default network settings so that you can change the required values.

For example, if your scenario might require only changing the IP addresses. In that case, you have to replace only the values 10.11.12.3 (Management IP address), 10.11.12.1 (Primary Node), and 10.11.12.2 (Secondary Node). You can leave all other values intact.

Network detail Description Default
Management IP address The IP address used for accessing the ElastiCenter. 10.11.12.3
Primary Node IP address Host IP address of the Node where primary ElastiCenter is installed. 10.11.12.1
Secondary Node IP address Host IP address of the Node where secondary ElastiCenter is installed. 10.11.12.2
Netmask The standard IPv4 subnet mask. 255.0.0.0
Gateway The IPv4 gateway IP address. 10.11.12.254
DNS The standard IPv4 address of the DNS Server. 8.8.8.8
Domain name Domain search, for example lab.engineering.cloudbyte.com. cloudbyte.com
Health check IP range Health check IP range of the HA Group. 10.11.12.11-10.11.12.12
IPMI address of primary Node You can remotely log in to primary Node. 10.11.12.101
IPMI address of secondary Node You can remotely log in to secondary Node. 10.11.12.102
Default log in credentials:
Component User name Password
ElastiCenter admin password
IPMI ADMIN ADMIN
SSH root test

Procedures

  1. Bring the Nodes in the appliance (ESA-A50 and ESA-A100) to maintenance mode. For details, see Configuring High Availability.
  2. (On the secondary Node) In the /usr/local/cb/bin/, run the following command:
    python Change_network_config.py
  3. Perform the steps as shown in the following sample command line :
  4. You have logged into the secondary Node and the associated ElastiCenter.
    
    You are going to change some or all of the network configuration details that you specified at the time of installation. 
    Specify the new IP address for the secondary Node
    20.10.60.50
    To change the Netmask, specify the details in the dotted decimal format. To bypass this step, specify No. No
    To change the Gateway, specify the details. To bypass this step, specify No. No
    To change the DNS, specify the details. To bypass this step, specify No. No
    To change the Network Interface card, specify the details. To bypass this step, specify No. No
    To change the Domain name, specify the details. To bypass this step, specify No. No
    Specify the management IP address used to access ElastiCenter
    20.10.39.71
    Specify the primary Node IP address
    20.10.60.40
    				
    The new network details of the secondary Node are as follows:
    IP address: 20.10.60.50
    Netmask : 255.0.0.0
    Gateway: 20.10.1.1
    DNS: 8.8.8.8
    Network Interface Card: re0
    Domain Name:  cloudbyte.com
    Management IP address: 20.10.39.71
    Primary Node IP address: 20.10.39.71
    
    Review the details and confirm by specifying Yes. Specify No to exit and cancel the changes. 
    To change the details later, rerun the Change_network_config script. Network configuration details changed successfully. Reboot the Node.
  5. Reboot the secondary Node using the following command:reboot.
  6. (On the primary Node) In the
    /usr/local/cb/bin/
    , run the following command:
    python Change_network_config.p
  7. Perform the steps as shown in the following command line :
  8. You have logged into the primary Node and the associated ElastiCenter.
    You are going to change some or all of the network configuration details that you specified at the time of installation. 
    Specify the new IP address for the primary Node
    20.10.60.50
    To change the Netmask, specify the details in the dotted decimal format. To bypass this step, specify No. No
    To change the Gateway, specify the details. To bypass this step, specify No. No
    To change the DNS, specify the details. To bypass this step, specify No. No
    To change the Network Interface card, specify the details. To bypass this step, specify No. No
    To change the Domain name, specify the details. To bypass this step, specify No. No
    Specify the management IP address used to access ElastiCenter
    20.10.39.71  

    The new network details of the primary Node are as follows: IP address: 20.10.60.50 Netmask : 255.0.0.0 Gateway: 20.10.1.1 DNS: 8.8.8.8 Network Interface Card: re0 Domain Name: cloudbyte.com Management IP address: 20.10.39.71 Review the details and confirm by specifying Yes. Specify No to exit and cancel the changes.
    To change the details later, rerun the Change_network_config script. Specify the following network configuration details of the secondary Node: IP address: 20.10.60.40 Netmask: 255.0.0.0 Gateway : 20.10.1.1 DNS: 8.8.8.8 Network Interface Card: re0Domain name: cloudbyte.com The network details of the secondary Node are as follows: IP address: 20.10.60.50 Netmask: 255.0.0.0Gateway: 20.10.1.1DNS: 8.8.8.8 Network Interface Card: re0 Domain Name: cloudbyte.com IP address used to access the Management Console: 20.10.39.71 Review the details and confirm by specifying Yes.Specify No to exit and cancel the changes. To change the details later, rerun the Change_network_config script. Network configuration details changed successfully. Reboot the Node.
  9. Reboot the primary Node using the following command:reboot.
  10. After the system is rebooted,launch ElastiCenter using the following steps:
    1. Launch a Web browser and specify URL in the following format:
      https://New IP Address to access the management console
    2. welcome_cloudbyte_elasticenter_login_page

    3. Specify the following default credentials:
    Credentials Value
    User name admin
    Password password
  11. In ElastiCenter, change the IP address of the HA group. For details, see Creating an HA Group
  12. Bring the secondary Node to Available mode. for details, see Configuring High Availability.
  13. Bring the primary Node to Available mode. for details, see Configuring High Availability.
  14. In the ElastiCenter admin pane, select ElastiCenter HA.
Change IP in appliance_1

Ensure that both the Nodes are in sync with each other as shown in the following screen:

Change IP in appliance_2