Preparing Linux Servers for the Upgrade › Prepare the Linux Servers

Prepare the Linux Servers

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 installation servers meet the requirements described in Linux Operating System Requirements.
• Software Requirements: Verify that the installation servers have fully operational installations of CA Network Flow Analysis software that is supported for upgrade.
• Verify that each of the Harvester Linux servers is ready for the upgrade by:
  • Installing the supported version of the JRE: Java Runtime Engine (JRE) 1.6u41.
  • 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

Notes:

• 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 during installation.
• The appropriate language packs are required for localized deployments.