What are the comman line instructions need to be used to know if a Logical Volume Manager is installed on solaris Box, What is its name, version, driver version, library version.
Are you referring to Solaris Volume Manager?
pkginfo -l SUNWmd
If Veritas Volume Manager...
pkginfo -l VRTSvxvm
To see which are used, df -k will probably show you.
You can check using metastat or vxprint commands too.