Virtualization

CICS® Transaction Gateway supports virtualization solutions that can be implemented either by the hardware, or by the operating system.

Hardware-based virtualization solutions

If CICS Transaction Gateway is running on one of the supported operating systems, hardware-based virtualization can be provided by a hypervisor (virtual machine manager). CICS Transaction Gateway supports the following hypervisors:

  • IBM® Processor Resource/System Manager (PR/SM) hypervisor with IBM z/OS® or Linux® operating systems.
  • IBM z/VM® hypervisor with IBM z/OS or Linux operating systems.
  • IBM PowerVM® hypervisor with IBM IBM AIX® or Linux operating systems.
  • VMware ESX Server with Windows or Linux operating systems.
  • Red Hat KVM with Red Hat Enterprise Linux (RHEL) operating system.
  • SUSE KVM with SUSE Linux Enterprise Server (SLES) operating system.

If using a virtualization environment, defect support is available when the operating system and any additional software used by CICS TG is listed in the supported software statement for the version of CICS TG that you are using.

Unless stated otherwise, CICS TG has not been tested in specific virtualization environments. CICS TG Support is therefore unable to assist in issues related to configuration and setup, or issues directly related to, the virtualization environment itself. If issues arise that are related to the virtualization environment, the user may need to contact the virtualization environment vendor for support, or the issue may need to be recreated outside of the virtualization environment in order to receive CICS TG support.

This statement also applies to shared root configurations, such as IBM AIX WPARs and Solaris Zones. CICS TG has not been adapted to exploit shared root virtualization, so some configurations may not be achievable.

Operating system-based virtualization solutions

If CICS Transaction Gateway for Multiplatforms is running on IBM AIX V6.1 or later, operating system-based virtualization is available through workload partitioning (WPAR).

For information about the types of application and topologies that can be used in a WPAR virtualization environment, and the operating system versions that support WPAR see Operating systems.