Preparing Linux Servers › Verify that the Linux Servers Are Prepared

Verify that the Linux Servers Are Prepared

Before you begin the upgrade, verify that the following conditions are met. Failure to comply with these requirements can result in data loss, increased down time, software conflicts, or a failed upgrade.

• System Requirements: Verify that the upgrade servers meet the Linux requirements and recommendations.
• Software Requirements: Verify that the upgrade servers have fully operational CA Network Flow Analysis software that is supported for upgrade.
• Verify that each of the Harvester Linux servers is ready for the upgrade by:
  • Assigning a static IP address to each server. Set the Harvester server IP address to match the flow export destination that is assigned to each router.
  • Configuring SNMP

    If SNMP is not running, the upgrade program displays a warning. You can bypass the warning and configure SNMP after the upgrade, however.

  • Disabling the iptables firewall
  • Disabling IPv6 networking
  • Stopping services
  • Backing up the databases
• To support non-Latin characters such as Japanese and Simplified Chinese, any command line clients that you use for installation must be configured for UTF-8 encoding. If UTF-8 encoding is not enabled, these characters may not display properly.
• The appropriate language packs are required for localized deployments.
• Regional Settings must use a period (.) to indicate a decimal value. If your deployment is localized to French, change the decimal symbol to a period in the Region and Language: Customize Format dialog.
• Polling fails if DNS resolution is not configured. For more information, see the Readme.