Scanning system prerequisites for HCL Workload Automation

Before installing or upgrading the product, HCL Workload Automation automatically runs a scan on your system.

Before you begin

When installing HCL Workload Automation using the serverinst script, the script first runs the scanner to verify system prerequisites.
Note: To ensure that the prerequisite scan process does not fail, verify that the bc executable is present on the local system and that it is set in the PATH environment variable. If you do not want to install the bc executable, you can skip the prerequisites check by using the skipcheckprereq parameter when running the serverinst and twsinst parameters. For more information about the bc executable, see bc, an arbitrary precision calculator language. For more information about installation commands, see Server components installation - serverinst script and Agent installation parameters - twsinst script.

About this task

Having an environment that meets the product system requirements ensures that an installation or upgrade succeeds without any delays or complications.

The scan verifies that:
  • The operating system is supported for the product.
  • On UNIX™ operating systems, the necessary product libraries are installed.
  • There is enough permanent and temporary disk space to install both the product and its prerequisites.
  • There is enough memory and virtual memory.
Note: The scan verifies only that the environment meets the requirements of HCL Workload Automation. It does not check the requirements for other components, such as DB2®.

If any of these checks fails, HCL Workload Automation returns an error message.

The log files for the server components are located in:
On Windows™ operating systems:
<TWA_home>\logs\serverinst<version_number>.log
On UNIX™ and Linux™ operating systems:
<TWA_DATA_DIR>/installation/logs/serverinst<version_number>.log
The log files for the Dynamic Workload Console are located in:
On Windows™ operating systems:
<DWC_home>\logs\dwcinst<version_number>.log
On UNIX™ and Linux™ operating systems:
<DWC_DATA_dir>/installation/logs/dwcinst<version_number>.log
The log files for the agents are located in:
On Windows™ operating systems:
<TWA_home>\logs\twsinst<interp><user_name><version_number>.log
On UNIX™ and Linux™ operating systems:
<TWA_DATA_DIR>/installation/logs/twsinst<interp><user_name><version_number>.log

You can decide to rerun the installation or upgrade without executing the prerequisite scan. If you set the -skipcheckprereq parameter to true when performing the installation, the installation script does not execute the prerequisite scan. If a problem occurs, an error is displayed, the component is installed or upgraded, but might not work. For more information about the -skipcheckprereq parameter in all installation scripts, see Reference.

Starting from version 9.5, Fix Pack 2, the prerequisite scan no longer verifies the presence on the local system of 32-bit libraries. However, the extended agent for MVS requires a set of libraries on Linux PPC. You can find the updated list of libraries, in addition to a detailed list of supported operating systems and the most up-to-date product prerequisites, in HCL Workload Automation Detailed System Requirements.