This section describes the installation, migration, and upgrade options that are available from previous versions of BMC Atrium Discovery.
The changes introduced moving from BMC Atrium Discovery version 8.3.x to 9.0 are very significant.
The move to Red Hat 6 alone prevents a straightforward upgrade and necessitate a change of major version number. The model changes and introduction of IPv6 support would also require a change of major version number.
At some stage, when moving from BMC Atrium Discovery version 8.3.x to version 9.0, you will need to migrate, or backup a version 9.0 appliance on RHEL 5 and restore it onto a version 9.0 appliance on RHEL 6, which is essentially the same as migration. This is summarized in the following diagram.
New installations of BMC Atrium Discovery version 9.0 are installed from a kickstart DVD or a downloaded Open Virtualization Format (OVF) virtual machine. See Installing BMC Atrium Discovery and Installing the virtual appliance for more information.
An upgrade is possible to BMC Atrium Discovery version 9.0 running on RHEL 5. This enables you to use many of the new features introduced in BMC Atrium Discovery 9.0, but does not fully support IPv6. This is described in Upgrading to version 9.0.
There is no direct upgrade path between BMC Atrium Discovery version 8.3.x and version BMC Atrium Discovery 9.0 running on RHEL 6. Rather, a migration is required. The migration procedure is described in Migrating from version 8.3.x to 9.0.
There is no direct upgrade path between BMC Atrium Discovery version 7.5 (BMC Topology Discovery and Foundation Discovery) and any later version of BMC Atrium Discovery. In this case too, a migration is required. This migration procedure is described in Migrating from version 7.5 to 9.0.