When you create an inactive boot environment, you need to identify a slice where the root (/) file system is to be copied. Use the following guidelines when you select a slice for the root (/) file system. The slice must comply with the following:
Must be a slice from which the system can boot.
Must meet the recommended minimum size.
If you have a sun4m system, the root (/) file system cannot be greater than 2 Gbytes.
Can be on different physical disks or the same disk as the active root (/) file system.
Can be a Veritas Volume Manager volume, but these volumes are not supported.