Statistics problem with TSM backup.

Hi Tsm'ers
Here is my problem.
by looking at below statistics, i suppose 44.81 GB is backedup to TSM
server.

11/20/01   13:34:03  ANE4952I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects inspected:    1,956
11/20/01   13:34:03  ANE4954I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects backed up:    1,955
11/20/01   13:34:03  ANE4958I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects updated:          0
11/20/01   13:34:03  ANE4960I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects rebound:          0
11/20/01   13:34:03  ANE4957I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects deleted:          0
11/20/01   13:34:03  ANE4970I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects expired:          0
11/20/01   13:34:03  ANE4959I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of objects failed:           0
11/20/01   13:34:03  ANE4961I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Total
                      number of bytes transferred:    44.81 GB
11/20/01   13:34:03  ANE4963I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
Data
                      transfer time:                4,346.26 sec
11/20/01   13:34:03  ANE4966I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
                      Network data transfer rate:        10,811.49 KB/sec
11/20/01   13:34:03  ANE4967I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
                      Aggregate data transfer rate:      5,085.20 KB/sec
11/20/01   13:34:03  ANE4968I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
                      Objects compressed by:                    0%
11/20/01   13:34:03  ANE4964I (Session: 2190, Node: ADSMSRV1.SG.IBM.COM)
                      Elapsed processing time:            02:34:00

But, when i look at my storage pool statistics , it surprised me. How my
storage pool occupation is too low that the above. query to storage pool
says only 13.5 % is occupied in 80GB space. (13.5% may also include other
nodes data in it.)
What is happening with TSM. or Is any thing wrong in my calculation.

here is the output of query storage pool.
No migration has happend while backingup the above node.

tsm: ADSMSRV1>q stg

Storage      Device       Estimated    Pct    Pct  High  Low  Next
Pool Name    Class Name    Capacity   Util   Migr   Mig  Mig  Storage
                               (MB)                 Pct  Pct  Pool
-----------  ----------  ----------  -----  -----  ----  ---  -----------
3575_AFS     3575CLASS          0.0    0.0    0.0    90   70
3575_AFS     3575CLASS          0.0    0.0    0.0    90   70
3575_ARCH    3575CLASS    485,000.0    1.0    2.1    90   70
3575_BKUP    3575CLASS   1,523,815.   12.1   12.4    90   70
                                  0
DISK_AFS     DISK          60,000.0    0.0    0.0     0    0  3575_AFS
DISK_ARCH    DISK          60,000.0    1.5    1.5    70   50  3575_ARCH
DISK_BKUP    DISK          80,000.0   13.5   13.5    70   50  3575_BKUP

Can anybody help in what is happening here?????
your help in this regard is highly appriciated.

Regards
sreekumar