Question:
I am trying to clone my database and I
get the ORA-00344 error:
***** got the following errors ****
ALTER DATABASE OPEN
RESETLOGS
*
ERROR at line 1:
ORA-00344: unable to re-create online log
'u01/oradata/prod/logs/redo01b.ora'
ORA-27040: skgfrcre: create error, unable to
create file
OSD-04002: unable to open file
O/S-Error: (OS 5) Access is denied.
How do I resolve the ORA-00344 error?
Answer:
You start by using the
oerr utility to look up ORA-00344 and ORA-27040 errors:
ORA-00344: unable to re-create online log
'string'
Cause: An I/O failure occurred when attempting to re-create an
online as part of either ALTER DATABASE OPEN RESETLOGS or ALTER
DATABASE CLEAR LOGFILE command.
Action: Correct the file/device as indicated by accompanying
errors
Here are details on the
ORA-27040 error:
ORA-27040: file create error, unable to create
file
Cause: create system call returned an error, unable to create file
Action: verify filename, and permissions
In this case, The Oracle background processes do not have the
necessary OS permissions to create a new file in the directory.
To troubleshoot ORA-27040 errors, you need to test from the OS.
You need to check these disk issues:
- Missing mount-point or Windows drive letter:
In another condition, a non-existent mount point
(or non-existent disk) can cause these errors:
ORA-00344: unable to
re-create online log 'D:\ORADATA\PROD\REDO01B.ORA'
ORA-27040: skgfrcre: create error, unable to
create file
OSD-04002:
unable to open file
O/S-Error: (OS 5) Access is denied.
In the above case, the PC does not have a D:
drive mapped to Windows.
- Incorrect OS Permissions - The directory owner should be your "oracle"
user, and the permission should be at least 770, to allow the
Oracle user and ensure that the is in the dba UNIX group.
A permission of 770 on the directory should allow you to allocate files
within the mount point. You can issue the chmod 770 on the
directory node to correct the permissions:
oracle> cd 'u01/oradata/prod
oracle>
chmod 770 logs
- Not enough Disk Space - You need to check the Filesystem space and ensure
that there is enough room within the directory using the ?df ?k?
command.
In Windows, go to "Computer --> Disks --> (and
right click on disk letter)
For more information on using OS commands, see the book
Oracle Shell Scripting
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