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About online Redo log file (merged) [message #470060] Sat, 07 August 2010 15:00 Go to next message
muktha_22
Messages: 527
Registered: December 2009
Senior Member
Hello,

Need a clarification on the below doubt.

If we do structural changes of online Redo Log, like Rename/Add/Drop. We need to take a backup.

Question 1:
Do we need to take a backup of online Redo also (case of Non - Archive), or only the control file is enough.

Question 2:
Do we need to do log switch before taking the backup of control file. And please tell me the procedures if anything has to perform more than this.

Thanks in prior.
Re: Online Redo Structure change [message #470071 is a reply to message #470060] Sat, 07 August 2010 15:28 Go to previous messageGo to next message
Michel Cadot
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Registered: March 2007
Location: Nanterre, France, http://...
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1/ Only control file.
2/ No.

Regards
Michel
About online Redo log file [message #470091 is a reply to message #470060] Sun, 08 August 2010 06:26 Go to previous messageGo to next message
muktha_22
Messages: 527
Registered: December 2009
Senior Member
Hello,

Need a clarification on the below doubt.

If we do structural changes of online Redo Log, like Rename/Add/Drop. We need to take a backup.

Question 1:
Do we need to take a backup of online Redo also (case of Non - Archive), or only the control file back up is enough.

Question 2:
Do we need to do log switch before taking the backup of control file. And please tell me the procedures if anything has to perform more than this.

Question 3:
I'm not able to get the control file backup trace file in UDUMP.

Question 4:
Logically we need only one Redo group, if we are not running in Archive log mode. Is it true?

Question 5:
How we can set Time-based manner in Logswitch.

Thanks in prior.
Re: About online Redo log file [message #470106 is a reply to message #470091] Sun, 08 August 2010 09:17 Go to previous messageGo to next message
Michel Cadot
Messages: 68653
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
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1/ See above
2/ See above
3/ Too bad for you
4/ No
5/ Database Reference contains the list of all parameters, try to find the appropriate one by yourself and come back with the answer.

A feedback is appreciated BEFORE you post the next topic above all if the next topic is the same as the previous one.
And in this case, DO NOT create a new topic continue on the same one.


Regards
Michel

[Updated on: Sun, 08 August 2010 09:17]

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Re: About online Redo log file [message #470942 is a reply to message #470106] Wed, 11 August 2010 10:05 Go to previous messageGo to next message
muktha_22
Messages: 527
Registered: December 2009
Senior Member
Hi Mickel,

It's a pleasure to have a help from you, and it was a great helpful.
Re: About online Redo log file [message #470948 is a reply to message #470942] Wed, 11 August 2010 10:15 Go to previous messageGo to next message
Michel Cadot
Messages: 68653
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
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Thanks but what I wanted is if you understood all the points or if there is something not clear.
For instance, have you now the answer to question 5?

Regards
Michel
Re: About online Redo log file [message #470949 is a reply to message #470948] Wed, 11 August 2010 10:20 Go to previous messageGo to next message
muktha_22
Messages: 527
Registered: December 2009
Senior Member
Hi Mickel,

Yes, I got it....
Thanks for the help...
Re: About online Redo log file [message #470955 is a reply to message #470949] Wed, 11 August 2010 10:35 Go to previous messageGo to next message
Michel Cadot
Messages: 68653
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
And the answer is? Maybe it should help someone that is searching it.
You get help, it is fair you provide help.

Regards
Michel
Re: About online Redo log file [message #471010 is a reply to message #470955] Thu, 12 August 2010 00:05 Go to previous message
muktha_22
Messages: 527
Registered: December 2009
Senior Member
Hi Mickel,

The parameter for the time based log switch is ARCHIVE_LAG_TARGET=int;
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