Mixed-Version Support in an OpenVMS Cluster
Environment
HP provides two levels of support for mixed-version and mixed-architecture
OpenVMS Cluster systems. These two support types are warranted and migration.
Warranted support means that HP has fully qualified the two
versions coexisting in an OpenVMS Cluster and will answer all problems
identified by customers using these configurations.
Migration support means that HP has qualified the versions
for use together in configurations that are migrating in a staged
fashion to a newer version of OpenVMS VAX or OpenVMS Alpha. Problem
reports submitted against these configurations will be answered
by HP. However, in exceptional cases, HP may request that you move
to a warranted configuration as part of the solution. Migration
support helps customers move to warranted OpenVMS Cluster pairs.
HP supports only two versions of OpenVMS running in
a cluster at a time, regardless of architecture.
OpenVMS Cluster Warranted and Migration Support shows the level
of support provided for all possible version pairings. In this table,
Alpha V7.3x refers to versions 7.3, 7.3-1,
and 7.3-2. Standard support for OpenVMS Alpha V7.3 systems ends
on December 31, 2003. After that, it will not be under Prior Version
Support (PVS). This statement does not apply to OpenVMS VAX systems.
For more information, see the OpenVMS Technical Software Support
Service web site at ftp://ftp.compaq.com/pub/services/software/ovms.pdf.
Table 2 OpenVMS Cluster Warranted and Migration Support
In a mixed-version cluster, you might need to install remedial
kits on earlier versions of OpenVMS. For a complete list of required
remedial kits, see the HP OpenVMS Alpha Version 7.3-2 Release Notes.
HP OpenVMS Alpha Version 7.3-2 Upgrade and Installation... 
Preparing to Upgrade in an OpenVMS Cluster Environment
