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тАО09-08-2005 01:49 AM
тАО09-08-2005 01:49 AM
I want to enable automatic logical logs backup on informix IDS, but ontape -a gives this error:
Performing automatic backup of logical logs.
Logbackup failed - Log backup to device '/dev/null' not allowed
Program over.
LTAPEDEV is set to /dev/null in onconfig
I found a technical case on IBM site with the same problem http://www-1.ibm.com/support/docview.wss?rs=0&q1=Log+backup+to+device+%27%2fdev%2fnull%27+not+allowed&uid=swg21141581&loc=en_US&cs=utf-8&cc=usтМй=en
But I've restarted Informix many times, it doesn't help :(
Maybe you have some ideas?
Informix version:
Informix Dynamic Server Version 7.31.UD6W5
HP-UX
B.11.11 U 9000/800
Thanks!
Solved! Go to Solution.
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тАО09-08-2005 01:54 AM
тАО09-08-2005 01:54 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
You must change the LTAPEDEV to a valid tape device and restart the Informix server.
Tommy
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тАО09-08-2005 01:56 AM
тАО09-08-2005 01:56 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
On another HP machine LTAPEDEV is set to /dev/null and everything is ok. I can't understand why it can't work on this machine...
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тАО09-08-2005 02:00 AM
тАО09-08-2005 02:00 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
Change TAPEDEV to /dev/null
not LTAPEDEV and try the ontape again.. LTAPEDEV must not be /dev/null
Tommy
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тАО09-08-2005 02:04 AM
тАО09-08-2005 02:04 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
I just double checked.. Neither should be /dev/null.
You can send them to a file, then delete the file.. This was a change I think at 7.31 we could at 7.24, not since..
Tommy
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тАО09-08-2005 02:13 AM
тАО09-08-2005 02:13 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
I don't see what you want to accomplish.
you wrote
I want to enable automatic logical logs backup on informix IDS
and later
but I don't want to backup logical logs.
Please tell us what your goal exactly is
Regards
Rainer
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тАО09-08-2005 03:22 AM
тАО09-08-2005 03:22 AM
SolutionYou may have an unprintable character in the onconfig file at that line which is causing it to mis-read it.
Completely delete the entire LTAPEDEV line using dd in vi, then re-enter
LTAPEDEV /dev/null # Log tape device path
Also put /dev/null next to TAPEDEV
Then bounce it again. Run ontape -s -L 0, then change TAPEDEV back to your normal device and bounce it again.
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тАО09-08-2005 08:36 PM
тАО09-08-2005 08:36 PM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
Ok, I will set LTAPEDEV to /dev/null and will no run onatpe -a, let's see will logical logs overflow or not. Thanks!
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тАО09-09-2005 04:08 AM
тАО09-09-2005 04:08 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
You can write your logical logs to /dev/null using 'ontape -c' not 'ontape -a'. Just change your LTAPEDEV /dev/null. By the way,
when you change your tape device for either LTAPEDEV or TAPEDEV you don't need to bounce IDS as these two parameters are read when you perform a database backup or logical log backup.
Regards,
Brian
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тАО09-09-2005 04:13 AM
тАО09-09-2005 04:13 AM
Re: Informix: ontape -a error: Log backup to device '/dev/null' not allowed
I should have said that the 'ontape -c' or ontape -a is not needed. Your logical logs will continuously backup to /dev/null, which is what you want. We have two of our dev server running this way, no problems.
Regards,
Brian