Add, resize and activate swap in solaris zfs

Precheck swap info :

# zfs get volsize rpool/swap
NAME        PROPERTY  VALUE    SOURCE
rpool/swap  volsize   16G      local
Resize swap :

# swap -l
swapfile             dev    swaplo   blocks     free
/dev/zvol/dsk/rpool/swap 228,2        16  8388592  8388592

# zfs set volsize=4g rpool/swap
# zfs get volsize rpool/swap
NAME        PROPERTY  VALUE    SOURCE
rpool/swap  volsize   4G       local
>> To activated new size must reboot OS

Create new swap :

# zfs create -V 16G rpool/swap2
# swap -lh
swapfile             dev    swaplo   blocks     free
/dev/zvol/dsk/rpool/swap 228,2        8K     4.0G     4.0G
Activate new swap :

# swap -a /dev/zvol/dsk/rpool/swap2
# swap -lh
swapfile             dev    swaplo   blocks     free
/dev/zvol/dsk/rpool/swap 228,2        8K     4.0G     4.0G
/dev/zvol/dsk/rpool/swap2 228,5        8K      16G      16G
/* EOF */