If you are upgrading from VERITAS Volume Manager (VxVM) 3.2 to 3.5, the Cluster Volume Manger (CVM) feature will not be available until you install the CVM license key for version 3.5. In VxVM 3.5, the CVM license key for version 3.2 does not enable CVM and must be upgraded to the CVM license key for version 3.5.
In Solstice DiskSuite/Solaris Volume Manager configurations that use mediators, the number of mediator hosts configured for a diskset must be exactly two.
DiskSuite Tool (Solstice DiskSuite metatool) and the Enhanced Storage module of Solaris Management Console (Solaris Volume Manager) are not compatible with Sun Cluster 3.1 software.
With VxVM 3.2 or later, Dynamic Multipathing (DMP) cannot be disabled with the scvxinstall command during VxVM installation. This procedure is described in the chapter,“Installing and Configuring VERITAS Volume Manager” in Sun Cluster Software Installation Guide for Solaris OS. The use of Veritas Dynamic Multipathing is supported in the following configurations.
A single I/O path per node to the cluster's shared storage.
A supported multipathing solution (Sun Traffic Manager, EMC PowerPath, Hiatchi HDLM) that manages multiple I/O paths per node to the shared cluster storage.
Simple root disk groups (rootdg created on a single slice of the root disk) are not supported as disk types with VxVM on Sun Cluster 3.1 software.
Software RAID 5 is not supported.