hi.
i got a Oracle 9 running in HP unix server. with around 2TB datas. and i been request to do the defragment on both database level and disk level. since i am not the DBA for oracle. and i am kind the fall into this position because our DBA left...
so my questions is ... is there any tool like disk keep for windows ... for unix that you can set a schedule to run the defrag and can be start from where you stop defrag?
another thing is database level defrag.. since i dont have much downtime.. is there any way to do the defrag faster? or use 3rd party tool? anything like that?

any suggestions will be very helpful. thanks!!!!