Solaris Volume Manager only supports large volumes (greater than 1 Tbyte) on the Solaris 9 4/03 or later release when running a 64-bit kernel. Running a system with large volumes under 32-bit kernel on previous Solaris 9 releases will affect Solaris Volume Manager functionality. Specifically, note the following:
If a system with large volumes is rebooted under a 32-bit Solaris 9 4/03 or later kernel, the large volumes will be visible through metastat output, but they cannot be accessed, modified or deleted. In addition, new large volumes cannot be created. Any volumes or file systems on a large volume will also be unavailable.
If a system with large volumes is rebooted under a Solaris release prior to Solaris 9 4/03, Solaris Volume Manager will not start. All large volumes must be removed before Solaris Volume Manager will run under another version of the Solaris platform.
Do not create large volumes if you expect to run the Solaris software with a 32-bit kernel or if you expect to use a version of the Solaris OS prior to the Solaris 9 4/03 release.