My original ques was :
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The problem is I have assigned two partitions of the disk to swap as:
Format Table
  1       swap    wu      16 -  249      256.74MB    (234/0/0)   525798
  7       home    wu     736 - 3730        3.21GB    (2995/0/0) 6729765
also					==========
solan# swap -l
swapfile             dev  swaplo blocks   free
/dev/dsk/c0t1d0s1   32,9      16 525776 428384
/dev/dsk/c0t1d0s7   32,15     16 4194272 4097104
solan# swap -s
total: 153216k bytes allocated + 35944k reserved = 189160k used, 2593936k available
(Details - SunOS solan 5.5.1 Generic sun4u sparc SUNW,Ultra-1)
As per the format table the space aloocated to swap - physiacally - is
3.45 GB. Now where's the rest of the space n how can I See the same.
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Thanx to the instant replies of 
Richard Skelton      |   e-mail : Richard.Skelton@brake.demon.co.uk
Stephen			          sweh@mpn.com 
The Answer is 
The second swap partition can't be > 2GB
I repartitioned the DISK as 
  1       swap    wu      16 -  132      128.37MB    (117/0/0)   262899
  5       swap    wu    2442 - 3730        1.38GB    (1289/0/0) 2896383
  7       home    wu     619 - 2441        1.95GB    (1823/0/0) 4096281
and got the result
howrah# swap -s
total: 13048k bytes allocated + 3696k reserved = 16744k used, 4051264k available
Thanx to all
regards
Puneet