We take compressed (unix) export of our database .
This export was completed in 180 minutes , but now it takes around
5 hours.
Compressed size of this export is 900 MB
Database size has not increased considerably.

We have another database on same machine ,Export of this database completed in usual time (30 minutes).
Compressed size of export is 175 MB.


Why Export of particular one database became slow suddenly ?

Any idea on this ???

Thanks,


Sanjay