Swap on HD not being used?

How come my disk swap is not being used? is there a way to turn i on?

Code: 
 02:55:18  up 15 days,  2:22,  2 users,  load average: 6.11, 5.45, 4.89
215 processes: 206 sleeping, 4 running, 1 zombie, 4 stopped
CPU states:  cpu    user    nice  system    irq  softirq  iowait    idle
           total   59.1%    0.0%   18.0%   0.0%     1.8%    0.9%   19.8%
           cpu00   58.5%    0.0%   16.9%   0.1%     3.1%    0.9%   20.1%
           cpu01   59.7%    0.0%   19.1%   0.0%     0.5%    0.9%   19.5%
Mem:  2054968k av, 1997424k used,   57544k free,       0k shrd,  102268k buff
                   1426048k actv,  329004k in_d,   33300k in_c
Swap: 2097136k av,       0k used, 2097136k free                 1224452k cached

 

 

 

 

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