RE: Not able to find data file on server but database is working fine
- From: "Elliott, Patrick" <patrick.elliott@xxxxxxxxxxxxx>
- To: "Harvinder Singh" <Harvinder.Singh@xxxxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 22 Jun 2007 15:13:51 -0500
I didn't mention ASM. ASM is a different animal altogether, and I
understand that you are able to insert data and use the file.
Here is the way it works...
When you open a file in UNIX, you are opening an i-node. When you
delete a file, the i-node does not get released until all processes that
have it open close it. Oracle still has the file open, so the i-node is
in use and the database does not even know that the file has been
deleted.
Pat
-----Original Message-----
From: Harvinder Singh [mailto:Harvinder.Singh@xxxxxxxxxxxxx]
Sent: Friday, June 22, 2007 3:08 PM
To: Elliott, Patrick; oracle-l@xxxxxxxxxxxxx
Subject: RE: Not able to find data file on server but database is
working fine
This is not an ASM instance, also I am able to create table in this
tablespace and able to isnert data.
-----Original Message-----
From: Elliott, Patrick [mailto:patrick.elliott@xxxxxxxxxxxxx]
Sent: Friday, June 22, 2007 4:05 PM
To: Harvinder Singh; oracle-l@xxxxxxxxxxxxx
Subject: RE: Not able to find data file on server but database is
working fine
If the file was deleted outside the database, then it will still be held
open while the database is running. The database sees the file because
it is still holding the i-node for the file. If this is what happened,
then I would quickly create a new tablespace and move everything out of
the one that has the hidden file. Otherwise, you will lose all of the
data in the tablespace when the database goes down. The only way to
recover the file will be to do a recovery from backup and apply the
archive logs.
The only other situation that I can see causing this might be file
permissions.
Pat
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Harvinder Singh
Sent: Friday, June 22, 2007 2:18 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Not able to find data file on server but database is working
fine
Hi,
On the test machine the developer created a new tablespace and I can see
in the alert.log file that the command was successful. Also I can see
from dba_data_fies that the datafile is available and also the
tablespace is showing as Online in dba_tablespaces. Also I am able to
create and insert data into table created in this tablespace but problem
is I don't see the file on server and I done search(find) as root and
don't see file anywhere on the system. Where the file can be and what
can be the possible reason for this behavior?
Environment: Oracle 10.2.0.3 on RHAT4
Thanks
--Harvinder
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