I have one database in linux server which has huge number of data's. Due to the updation and deletion operation it has consumed most of the from my hard disk. The main reason is that the version which we are using ( 8.1 ) does not have periodical autovaccum process. To over come this issue i have put the vaccum full to specific table, the vaccum command was running more than 15 hours and keeps on running. So I just stopped the vaccum execution since other process was not able to access that table for 15 hours.
Is there any way to overcome this issue and get back the memory without disturbing other process.