hi,i don't have space in my database volume so i tried to make a space , i delete some usless mailboxes , make our users to make archiving but after that the free space in the volume which contain the exchange database still same as before , no change need help ....MCP MCSA MCSE MCT

Well, when online maintenance runs, it will make the white space (you can check event 1221) in the database file but it doesn't decrease the size of EDB file. Only offline defragmentation can decrease it. Refer below similar thread for insight and let us know if you have any question on defragmentation... http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/75273abb-56bc-4e6f-b84c-f28aab2843fa/#3f3f20e1-5b48-4b44-b672-c51f6d887188Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com

Well, when online maintenance runs, it will make the white space (you can check event 1221) in the database file but it doesn't decrease the size of EDB file. Only offline defragmentation can decrease it. Refer below similar thread for insight and let us know if you have any question on defragmentation... http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/75273abb-56bc-4e6f-b84c-f28aab2843fa/#3f3f20e1-5b48-4b44-b672-c51f6d887188 Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com thanks for your help...MCP MCSA MCSE MCT