Determine if Solaris is running in 32 or 64 bit mode
Contributed by qmchenry 
Tagged: Solaris system administration The isainfo command can be used to determine if a Solaris system has been configured to run in 32 or 64 bit mode.
Run the command
isainfo -v
If the system is running in 32 bit mode, you will see the following output:
32-bit sparc applications
On a 64 bit Solaris system, you’ll see:
64-bit sparcv9 applications
32-bit sparc applications
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Hannes Bauer said on July 15, 2009
very helpfuk, thanks
Mike said on October 16, 2009
thanks i was looking for this
Anonymous said on February 5, 2010
Awesome… found this thread at a very crutial time.
Regards
Monu Koshy
Subhashini said on December 14, 2010
good to know.
Shejwal Sneha said on December 28, 2010
isainfo -kv
Csbreddy said on January 1, 2011
bash-3.00# isainfo
amd64 i386
bash-3.00# isainfo -kv
64-bit amd64 kernel modules
bash-3.00# isainfo -nv
64-bit amd64 applications
cx16 mon sse3 sse2 sse fxsr mmx cmov amd_sysc cx8 tsc fpu
bash-3.00# isainfo -b
64
Csbreddy said on January 1, 2011
/usr/bin/isainfo -kv
If your OS is 64-bit, you will see output like:
64-bit sparcv9 kernel modules
If your OS is 32-bit, you will get this output:
32-bit sparc kernel modules