The DiskSuiteTM metadb replicas contain driver names as part of the DiskSuite configuration data. In IA-based systems that run versions 2.4, 2.5, 2.5.1, and 2.6 of the Solaris operating environment, the SCSI driver name is cmdk. The cmdk driver has been replaced by the sd driver in the Solaris 7 and 8 operating environments for IA-based systems.
Workaround: To avoid potential data loss during upgrades to the Solaris 7 and 8 operating environments, you must save the system's meta device configurations in text files and remove their metadb replicas before upgrading any IA-based system that is running DiskSuite software. After you finish upgrading your IA-based system, you must restore the meta device configurations by using the DiskSuite command line interface.
The DiskSuite Version 4.2 Release Notes describe a procedure for saving metadb configurations, removing metadb replicas, upgrading IA-based systems to the Solaris 7 and 8 operating environments, upgrading DiskSuite to version 4.2, and restoring meta device configurations. Bourne shell scripts that automate the procedure are available for the Solaris 7 and 8 operating environments.