Re: EMC Not Releasing Space

From: Mohammad Rafiq <rafiq9857_at_hotmail.com>
Date: Tue, 08 Jan 2002 14:07:51 -0800
Message-ID: <F001.003EA627.20020108134938@fatcity.com>

Work around is to unmount file system and mount it back...THis I have seen with HP-UX 10.20 and EMC....
Regards
Rafiq

Reply-To: ORACLE-L_at_fatcity.com
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Date: Tue, 08 Jan 2002 10:55:31 -0800

This is a unix thing, not necessarily Oracle.

When you delete a file on unix, it will remain on disk as long as there is an existing process holding the file open.

You will see the space reclaimed when the database is bounced.

Jared

                     Walter K
                     <alden14004_at_YA       To:     Multiple recipients of 
list ORACLE-L <ORACLE-L_at_fatcity.com>
                     HOO.COM>             cc:
                     Sent by:             Subject:     EMC Not Releasing 
Space
                     root_at_fatcity.c
                     om


                     01/08/02 10:19
                     AM
                     Please respond
                     to ORACLE-L

Hi,

Just curious if anyone has any experience with an EMC Symmetrix not releasing the space for a deleted datafile. If so, is there a solution or work-around?

Yesterday, we took a tablespace offline, dropped it and then deleted the associated datafile. The file was 1G in size and today the space has still not been released as indicated by 'df -k'. According to another DBA here, they have seen this in the past and said bouncing the DB remedied the problem.

It sounds like the inodes are still in use by Oracle but I can't imagine why. I've worked with Symmetrix systems before and have never experienced this behavior. We are running 8.1.7.2 (64bit) on Solaris 2.8. Any suggestions?

As always, your feedback is appreciated.

-w

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Author: Mohammad Rafiq
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