Thanks for the reply. We are not using the recyle option and parameter recyclebin is off. No error during file shrink. It was created a Bigfile/LMT select file_name,bytes from dba_data_files where tablespace_name='HS'; /data233/oradata/hs1.dbf 32212254720 -bash-3.00$ ls -lrt hs1* -rw-r----- 1 oracle oinstall 109521674240 Mar 9 15:49 hs1.dbf Thanks --Harvinder ________________________________ From: GovindanK [mailto:gkatteri@xxxxxxxxxxx] Sent: Friday, March 09, 2007 5:10 PM To: Harvinder Singh; oracle-l Subject: Re: Resize datafile not releasing space at OS level May be you would need to Purge the Recycle bin. Are you using Bigfile/DMT/LMT? Refer to Metalink Notes Note:380473.1, Note:1061937.6 Are you receiving any error while shrinking? HTH GovindanK On Fri, 9 Mar 2007 14:47:08 -0500, oracle-l-bounce@xxxxxxxxxxxxx said: > Hi, > > We have an Oracle 10.2.0.1 database on RHAT4 test server and I resize > the file from 100G to 30G and operation is successful and I can see in > the dba_data_file it is showing now as 30G but on hard drive/filesystem > it is still showing 100G. So I assumed OS may release space when other > process needs it but it didn't happened and other process failed for > space reasons and also I rebooted the server but still no effect. > What can be the possible reasoning for this behavior and how to reduce > the size at file system level. > > Thanks > --Harvinder > > -- > www.freelists.org/webpage/oracle-l > >