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RE: HDR problem - ontape -p

Posted By: GRUBER, CARL M
Date: Monday, 27 June 2005, at 10:03 a.m.

In Response To: RE: HDR problem - ontape -p (Support Informix )

Does anyone know how to get off of this email forum?

-----Original Message-----
From: forum.subscriber@iiug.org [mailto:forum.subscriber@iiug.org] On
Behalf Of Support Inf....
Sent: Monday, June 27, 2005 5:43 AM
To: ids@iiug.org
Subject: RE: HDR problem - ontape -p [5262]

1] When I do ontape -p , it does ask me "take logical backup [Y/N] ?"
What should I do ?

answer No.
This means that your secondary server has been initialised and has
some
logs that are not been backuped. Your secondary server may be new,
without
a first initialisation. We do a complete restore, don't we ?

2] Why doesnt the restore complete ? Have you wait enough time ? do you
see
disk activity with iostat or something else ?

I have made 2 litte informixservers and constructs HDR between them.
So i
knew which behaviour and messages to expect.

3] The level-0 backup on primary takes around 10 hours , should the
restore
take more than that or how much time should the "ontape -p" run ?

Almost more, if both servers have the same hardware and same
applications.
My experience :the restore of the logs take a long, long time.

4] When it does complete, whats should be the status of the informix
server
i.e. "onstat - " should show what output ?

After completion the secondary server will always stays in Recovery Mode
(Read Only). I'm not so sure from the "Read Only" in the banner.

I've tested HDR in informix7.3 as follows :

on primary :
ontape -s -L 0
onmode -d primary g_oebarrep # set as primary

on secondary :
ontape -p (in log file : Recovery mode)
onmode -d secondary g_oebar (in log : DR: Start failure recover from
tape)
ontape -l
rollforward should start at log 6
another tape : N
(in log DR: in log failure recover from disk)

the secondary log files :
14:48:29 Event alarms enabled. ALARMPROG =
'/usr/informix/etc/no_log.sh'
14:48:29 VP pid=41056 priority fixed at 65, former = 65
14:48:29 VP pid=39526 priority fixed at 65, former = 65
14:48:34 DR: DRAUTO is 0 (Off)
14:48:34 Informix Dynamic Server Version 7.31.UD2 Software Serial
Number
AAD#A244485
14:48:34 Dynamically allocated new virtual shared memory segment (size
8192KB)
14:48:34 Informix Dynamic Server Initialized -- Shared Memory
Initialized.
14:48:35 Dataskip is now OFF for all dbspaces
14:48:35 Restartable Restore has been DISABLED
14:48:35 Recovery Mode
14:48:37 Physical Restore of rootdbs started.

14:48:47 Checkpoint Completed: duration was 0 seconds.
14:48:47 Checkpoint loguniq 6, logpos 0x2b018

14:48:47 Physical Restore of rootdbs Completed.
14:48:47 Checkpoint Completed: duration was 0 seconds.
14:48:47 Checkpoint loguniq 6, logpos 0x2b018

14:48:47 Physical Restore of datadbs started.

14:49:17 Checkpoint Completed: duration was 0 seconds.
14:49:17 Checkpoint loguniq 6, logpos 0x2b018

14:49:17 Physical Restore of datadbs Completed.
14:49:17 Checkpoint Completed: duration was 0 seconds.
14:49:17 Checkpoint loguniq 6, logpos 0x2b018

14:55:53 DR: new type = secondary, primary server name = oebar
14:55:53 DR: Trying to connect to primary server ...
14:55:58 DR: Secondary server connected
14:55:59 DR: Start failure recovery from tape ...
14:56:35 Logical Recovery Started.
14:56:35 Start Logical Recovery - Start Log 6, End Log ?
14:56:35 Starting Log Position - 6 0x2b018
14:56:35 Clearing the physical and logical logs has started
14:57:28 Cleared 11 MB of the physical and logical logs in 53 seconds
14:57:29 Checkpoint Completed: duration was 1 seconds.

-----Original Message-----
From: nobody@ace.iiug.org [mailto:nobody@ace.iiug.org]
Sent: 27 June 2005 08:47
To: ids@iiug.org
Subject: HDR problem - ontape -p [5257]

1] When I do ontape -p , it does ask me "take logical backup [Y/N] ?"

What should I do ?
I gave "N" and proceeded with the cold restore.

Is the above right action ?

2] Why doesnt the restore complete ?

3] The level-0 backup on primary takes around 10 hours , should the
restore
take more than that or how much time should the "ontape -p" run ?

4] When it does complete, whats should be the status of the informix
server
i.e. "onstat - " should show what output ?

PLEASE give the answers pointwise .

Thanks in advance for ur help/suggestions ...

Regards,
Sagar

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<TITLE>RE: HDR problem - ontape -p [5257] </TITLE>
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1] When I do ontape -p , it does ask me "take =
logical backup [Y/N] ?" 
    What should I do ? 


   answer No.
    This means that your secondary server =
has been initialised and has some logs that are not been =
backuped.  Your secondary server may be new, without a first =
initialisation. We do a complete restore, don't we ?  

2] Why doesnt the restore complete ?  Have you =
wait enough time ? do you see disk activity with iostat or something =
else ?

  I have made 2 litte informixservers and =
constructs HDR between them. So i knew which behaviour and messages to =
expect.

3] The level-0 backup on primary takes around 10 =
hours , should the restore take more than that or how much time should =
the "ontape -p" run ?

Almost more, if both servers have the same hardware =
and same applications.  My experience :the restore of the logs =
take a long, long time.

4] When it does complete, whats should be the status =
of the informix server i.e. "onstat -  " should show =
what output ?


After completion the secondary server will always =
stays in Recovery Mode (Read Only).  I'm not so sure from the =
"Read Only" in the banner. 
 
 

I've tested HDR in informix7.3 as follows :


on primary : 
 ontape -s -L 0
 onmode -d primary g_oebarrep   # set as =
primary


on secondary :
 ontape -p    (in log file : Recovery =
mode)
 onmode -d secondary g_oebar    (in =
log : DR: Start failure recover from tape)
 ontape -l 
        rollforward =
should start at log 6
        another tape : =
N
           &nb
=
sp;    (in log DR: in log failure recover from =
disk)


the secondary log files :
 14:48:29  Event alarms enabled.  ALARMPROG
=
=3D '/usr/informix/etc/no_log.sh'
 14:48:29  VP pid=3D41056 priority fixed at 65, =
former =3D 65
 14:48:29  VP pid=3D39526 priority fixed at 65, =
former =3D 65
 14:48:34  DR: DRAUTO is 0 (Off)
 14:48:34  Informix Dynamic Server Version =
7.31.UD2    Software Serial Number AAD#A244485
 14:48:34  Dynamically allocated new virtual =
shared memory segment (size 8192KB)
 14:48:34  Informix Dynamic Server Initialized =
-- Shared Memory Initialized.
 14:48:35  Dataskip is now OFF for all =
dbspaces
 14:48:35  Restartable Restore has been =
DISABLED
 14:48:35  Recovery Mode
 14:48:37  Physical Restore of rootdbs =
started.


14:48:47  Checkpoint Completed:  duration =
was 0 seconds.
 14:48:47  Checkpoint loguniq 6, logpos
0x2b018</=
FONT>


14:48:47  Physical Restore of rootdbs =
Completed.
 14:48:47  Checkpoint Completed:  duration =
was 0 seconds.
 14:48:47  Checkpoint loguniq 6, logpos =
0x2b018


14:48:47  Physical Restore of datadbs =
started.


14:49:17  Checkpoint Completed:  duration =
was 0 seconds.
 14:49:17  Checkpoint loguniq 6, logpos =
0x2b018


14:49:17  Physical Restore of datadbs =
Completed.
 14:49:17  Checkpoint Completed:  duration =
was 0 seconds.
 14:49:17  Checkpoint loguniq 6, logpos =
0x2b018


14:55:53  DR: new type =3D secondary, primary =
server name =3D oebar 
 14:55:53  DR: Trying to connect to primary =
server ...
 14:55:58  DR: Secondary server connected
 14:55:59  DR: Start failure recovery from tape =
.. 
 14:56:35  Logical Recovery Started.
 14:56:35  Start Logical Recovery - Start Log 6,
=
End Log ?
 14:56:35  Starting Log Position - 6 =
0x2b018
 14:56:35  Clearing the physical and logical =
logs has started
 14:57:28  Cleared 11 MB of the physical and =
logical logs in 53 seconds
 14:57:29  Checkpoint Completed:  duration =
was 1 seconds.


 


-----Original Message-----
 From: nobody@ace.iiug.org [<A =
HREF=3D"mailto:nobody@ace.iiug.org">mailto:nobody@ace.iiug.org</A>] =

 Sent: 27 June 2005 08:47
 To: ids@iiug.org
 Subject: HDR problem - ontape -p [5257] 

 

1] When I do ontape -p , it does ask me "take =
logical backup [Y/N] ?" 


   What should I do ? 
           &nb
=
sp;   I gave "N" and proceeded with the cold =
restore.


   Is the above right action ?


2] Why doesnt the restore complete ?


3] The level-0 backup on primary takes around 10 =
hours , should the restore take more than that or how much time should =
the "ontape -p" run ?

4] When it does complete, whats should be the status =
of the informix server i.e. "onstat -  " should show =
what output ?


PLEASE give the answers pointwise .


Thanks in  advance for ur help/suggestions =
..


Regards,
 Sagar


</BODY>
</HTML>
------_=_NextPart_001_01C57B15.3D6F2130--

Messages In This Thread

HDR problem - ontape -p
SAGAR THANAWALA -- Monday, 27 June 2005, at 2:47 a.m.
- RE: HDR problem - ontape -p
  Whelan, John -- Monday, 27 June 2005, at 6:23 a.m.
- RE: HDR problem - ontape -p
  Support Informix -- Monday, 27 June 2005, at 8:42 a.m.
  - RE: HDR problem - ontape -p
    GRUBER, CARL M -- Monday, 27 June 2005, at 10:03 a.m.
    - RE: HDR problem - ontape -p
      June C. Hunt -- Monday, 27 June 2005, at 10:53 a.m.
- Re: HDR problem - ontape -p
  SAGAR THANAWALA -- Wednesday, 29 June 2005, at 3:44 a.m.

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