Going to noarchivelog mode in 10gR2

Hi,
my database is in 10gR2 on a win XP PC in archive log mode. How can I go to non archivelog mode ?
1-Should I change Archive_log_start to false in E:\oracle\product\10.2.0\admin\bd1\pfile\init.ora ?
then
2-Shutdown immediate, startup mount, alter database noarchivelog, shutdown immediate, startup
Or may be another faster way in 10gR2 ?
Many thanks.

Archive_log_start to false Hey, this is a depricated parameter in version 10g.
Simply, mount the database and switch to noarchivelog mode and open the database.
More importantly, dont forget to have a backup.
Jaffar

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Going from NOARCHIVELOG to ARCHIVELOG mode

I am running an Oracle 10g Release 2 10.2.0.2 database on AIX.
Can any body tell me the exacts steps for going from noarchivelog mode to
archivelog mode.
Thanks and Regards,
Asim Naveed.

You must
1 - shutdown db
2 - mount db
3 - ALTER DATABASE ARCHIVELOG
4 - open dbDo not forget to backup the database.

Back-up in noarchivelog mode

If running in NOARCHIVELOG mode, the script displays the following output:
Warning: Log archiving (ARCHIVELOG mode) is currently disabled. If
you restore the database from this backup, any transactions that take
place between this backup and the next backup will be lost. It is
recommended that you enable ARCHIVELOG mode before proceeding so
that all transactions can be recovered upon restore. See the section
'Enabling ARCHIVELOG Mode...' in the online help for instructions.
Backup with log archiving disabled will shut down and restart the
database. Are you sure [Y/N]?
i was wondering why will it be lost when i am going to make a current backup? I will obviously stop all transactions isn't it?

Case of archive log mode online redo log files dumped into archives. So let suppose you have full backup at morning 6 am.
If your database crashes around 8 am, you can restore 6 am backup and you option of recovery until 8am. So there is no data loss until you have archives.
Now we talk of noarchivelog mode, here online redo log files are not dumped because of noarchivelog mode of database.
You have backup at 6 am
Now the time is 8 am , your database crashed. Now you have to restore 6 am backup. Later there is no concept of recovery. It's just restore. Because you don't have archives to perform recovery.
So again archivelog mode depends on your business requirements.
Overall you have two hours of data loss in noarchivelog mode.
HTH.

Recover a deleted record in NOARCHIVELOG mode?

Hello,
I'm running 10gR2 in NOARCHIVELOG mode and we do not take backups (please, let's not get into a discussion about this!).
I need to know if there is any possible way to recover a record once it has been deleted and a COMMIT has been issued? A user inserted two records in the database that they should not have, and I need to verify there is no possible way to recover those once they have been deleted.
Thank you,
Mimi

Mimi Miami wrote:
Ok so my UNDO_RETENTION parameter is set to 900...so 15 minutes after I delete the records they should not be querable using Flashback Query any longer, right?No,
UNDO_RETENTION is low threshold value of undo retention. Meaning, Oracle will try to keep at least that time before overwritten.
However, it's not gurranteed if not enough undo tablespace available, meaning it can be overwritten before the value is up if not enough undo tablespace to serve new transaction.
On the other-hand, it will not remove the undo record until it's overwritten, meaning the record could stay there for considerable amount of time if your database is not busy and undo tablespace is big.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/initparams222.htm#REFRN10225
Not sure what's the intention to make your delete irreversible,
you could actually create table newtable as select .. from old_table where <except the two records>.
Drop the old table and rename new table.
purge the recycle bin of your database

Media failure in Noarchivelog mode

Dear all,
I am running Oracle database 10g in noarchivelog mode.
It has a media failure, a datafile has corrupted. How can i recovery it suppose i dont have the latest backup?
Thanks and regards,
Steve

Hi,
since you don't have a backup, and you have a media failure, you cannot recover.
You can set the tablespace/datafile in question offline, and work with whatever is left in the remaining datafiles. (i.e. export/import elsewhere)
if the file is just corrupted, and not lost,
you may be able to get some of the data back using oracles data unloader, but that is going to be expensive (i.e. you would need to engage oracle consulting to do it for you)
i strongly recommend you get familiar with the rman tool next time around, this is quite capable of performing backup and recovery.
Karsten

Hot backup on NOARCHIVELOG mode?

DB version:10gR2, 11G
Why is it not possible to do a Hot Backup in NOARCHIVELOG mode? What role does archived redo log files have in a Hot backup?

Because it takes more than zero seconds to backup a database.
Say your database consists of 1 single datafile of 10MB. This datafile, at the OS filesystem level, consists of 2,560 blocks of 4KB each.
If you start a backup of the datafile, the OS utility (tar, cp, cpio, whatever command) reads the first 4KB block and copies it out. It then, after a certain time, reads the next block. And so on till it gets to the last block of the file.
However, since the database is "open" transactions may have updated blocks in the datafile.
Therefore, at time t0, block 1 may have been copied out. At time t5, block 128 may have been copied out. At time t32, block 400 may have been copied out. Unfortunately, some user may have updated block 1 at time t3 and block 128 at time t8.
What would happen if these blocks, having been copied out at different times were restored ? They would be inconsistent !!
It is the ArchiveLog mechanism that allows Oracle to know that a datafile was "active" when it was being backed up. Oracle has to "re-play" all changes that occurred on the datafile from the time the datafile backup began (at t0) till it ended (at the 2,560th block).

Redo log content in NOARCHIVELOG mode

I have several servers running Oracle 9i databases in NOARCHIVELOG mode. I know this means that the online redo logs are not archived. I have been tracing the Oracle log writer with truss, and only see I/O going to the Oracle control files. I see no I/O going to the online redo logs. Can someone point me to the Oracle documentation that discusses exactly what gets written to the online redo log files while in NOARCHIVELOG mode? Thanks in advance for any assistance.

Try Oracle Concepts on
http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96524.pdf

Database in noarchivelog mode, truncate command issued

Database in noarchivelog mode, truncate command has been issued how to restore the table?
FACTS:-
1. DB In noarchivelog Mode
2. Cannot enable flash back mode because of 1. above
3. No exports available
4. No backup's Available.
Any thoughts ?

Oracle Support/ Professional Services has a Data Unloader (DUL) and ORA-00600 has DUDE, both of which may be able to extract information from data files that are corrupted, where the control files are lost, etc.
These are not, however, cheap utilities. Unless the data itself is really valuable, it is generally not a viable option.
Justin

Can't backup database in NOarchivelog mode

Hi there,
I get this error when I run this command from rman:
backup database
Starting backup at 19-JAN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 01/19/2011 17:18:10
ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode
please help.
Thanks in advance!

user13286861 wrote:
ok it finally shutdown cleanly.
I altered it in archivelog mode.
Now I can run a backup database command from rman?What does it cost to try it and see? What would be the worst thing that could possibly happen? An error message saying you can't do that?
And please note, this forum is not a chat line. Operators are NOT standing by. Posting a new message every two minutes to give an update on the fact that the database hasn't shut down yet is not necessary and not productive.
If there are a lot of pending transactions when you issue SHUTDOWN IMMEDIATE, they will all have to be rolled back as part of the shutdown. That can take some time. And if you bypass that with SHUTDOWN ABORT, they will have to be rolled back as part of instance crash recovery on the next startup, which will also take some time. Five minutes may feel like an eternity when you are sitting there waiting for your command to complete, but is no reason to panic.

Mac Tower Pro 10.8.5 keeps going into sleep mode

Purchased from Apple, refurbished 2012 Mac Tower Pro. At the same time, purchased a new Dell U2713HM, 27" monitor.
Have been operating on this new system since about the first week of December 2013.
Issue:
The computer has constantly gone into sleep mode after a few minutes of no activity. I can have iTunes radio playing, but the system still goes into sleep mode. As I am typing and moving the curser, the machine stays awake.
This has caused much frustration because when it goes into auto sleep mode, it quits all programs that I am in, and when it does this, I lose all the work I had accomplished. It litterally closes everything and goes to sleep in about 2-3 minutes of no activity.
BTW: the computer and monitor have all its new OEM cables that came in the box, when I purchased the units.
Solutions attempted:
System Preferences — Energy Saver: computer sleep and display sleep set to "never" and unclicked the box "Put hard disks to sleep when possible."
Dell settings: Turned off all energy savers.
Results:
Nothing. Problem persists.

I apologize for the angst. The problem has cost too much money in lost time and material because when it would automatically shut down after a few minutes, all my work was lost.
I misunderstood the terms of the warranty. Thank you for your input and patience. Much appreciated. For the benefit of others that experience this with a new Mac that auto shuts down. Check the following:
1. Go to System Preferences.
2. Click on Security and Privacy.
3. Click on Advanced (bottom right corner)
4. If the first line is checked (Log out after 5 minutes of inactivity); uncheck it and then click OK button.
5. Be sure to click the lock before existing Security and Privacy.
Now the machine will cease shutting down programs to go into sleep mode as soon as machine is inactive for a few minutes.

My macbook is two and half year old, going to sleep mode randomly

Having used this Macbook for almost two and half years, my machine has suddenly generated the problem of going to random sleep. It started as an infrequent thing, then it started happening on a regular basis, to the point that it became almost impossible to work with it. When the computer goes to sleep mode, it doesn't wake up with any key, it has to be woken up by pressing the power button lightly.
Here are the steps I took:
1. The normal thing I did was search Apple Forum and then reset SMC, PRam, then changed energy saving options, everything. Nothing worked.
2. Ran the hardware test and no problems found.
3. Ran the Macbook with all options: with just the battery, without the Magsafe connected, with Battery and Magsafe connected together, with battery removed and the computer running on Magsafe only. Random Sleep continues
4. Thought must be a connection issue and ran to Apple Store in Kolkata, India, thinking that it could be a connection issue with the sleep-mode cable. Apple Store kept the Macbook for seven days, saying that they needed to check the machine, returned it on the seventh day saying that the machine was fine and charged me Indian Rupee 1,500/- (about $ 34). I came back home and the problem persists.
(Here I would like to add that Apple Service in Kolkata *****, probably ***** all over India, simply because Apple is not a major player in this country. The service engineer at Apple Store was at a loss with my problem and after seven days could only say, "We have done our internal tests and found no problem with your Macbook." When I asked about the Sleep Mode sensor connection, he said, "That is working fine, we have checked that.")
5. After coming back home, I faced the same problem, this time with lesser time gap. It would go off to sleep every one minute or so. I decided to set my computer on "never to sleep mode" in the enery saving option. Alas, that didn't help either.
6. I redid the hardware check, only to find that my computer hasn't detected any hardware problem.
7. Now, as a previous Windows user, I thought that the problem must have been with the OS. So, at the risk of losing all my files, I decided to reload the OS. (My original OS DVD was Leopard, but it was later upgraded to Snow Leopard by the vendor free of cost). I took backup in Time Machine, and backed up the documents in another Disk and reloaded the OS. All seemed fine so far, for about 10 minutes. I was now confident that finally I could solve the problem and was then planning to migrate my previous files to my newly loaded OS-X. Alas, I was wrong. Before I could connect the external HDD to my computer, my Macbook went back to its previous trick of falling asleep.
I'll definitely take back my Macbook to Apple Care tomorrow, but with my experience here in Kolkata, don't know whether they would be able to solve anything. Last time I had to show them the posts in Apple Forum to prove that Random Sleep is a problem that happens to Macbook.
PS: My Macbook is with aluminium body bought in January 2009. Out of warranty. My optical drive conked off long ago (after about 15 months or so after I bought the Macbook) and I live with an external drive.

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

TS3274 its almost 10 months,i purchased ipad2 32 3g wifi.itinially i got problem with applications shut off frequently now since last 4 months my ipad starts with a message (connect iTunes)like first time start and going to restore mode and it occurs freq

its almost 10 months,i purchased ipad2 32 3G wifi.itinially i got problem with applications and safari shut off frequently now since last 4 months my ipad starts with a message (connect iTunes)like first time start and going to restore mode and it occurs frequently.plz advise.

If you have followed the standard Apple troubleshooting processes (see user guide )
probably a trip to the local Apple Store Genius bar is called for before warranty runs out
Assuming the iPad has been released in your Country if not you may have to take it to a
neighbouring Country where it is available
This page will tell you ,via the drop down menu Countries that can support iPad
http://support.apple.com/kb/index?page=servicefaq&geo=United_Kingdom&product=ipa d

I am having an iphone 4 and it is not working. i am trying to restore it on itunes directly but it stays at waiting for iphone status with no errors and the iphone goes into a mode where it keeps restarting continuously with apple logo on the screen

the iphone goes from recovery mode to some other mode where it keeps restarting with apple logo flashing on the screen continuously. and there is no error in itunes at all which stays in "waiting for iphone" status

Hi there yaswanthfromcumbum,
You may find the troubleshooting steps in the article below helpful.
If you can't update or restore your iOS device
http://support.apple.com/kb/ht1808
-Griff W.

Early 2008 iMac (8,1) randomly goes into sleep mode

Hey,
My early 2008 iMac (8,1) on 10.8.2 goes into sleep mode by itself. I've played around in Energy Saver, tried resetting SMC, NVRAM, replaced HDD, reformatted HDD, installed smcFanControl, reinstalled Snow Leopard, Lion, Mountain Lion. None of that worked. Took it to the Genius bar, performed some diagnostics tests and they said everything worked properly. Does anybody have the same problem? I can still use the computer for general computer use (light web surfing and e-mailing), but it seems to go into sleep mode when I have a lot of applications open and especially when watching videos. I've tried researching this problem, but I've haven't found a definitive answer. Right now, the Genius that I've been talking to thinks it may be the RAM. I'm waiting on new shipments of test RAM to arrive at the Apple Store for him to properly diagnose.
Thanks,
Jason
iMac (8,1)
2.8 GHz Intel Core 2 Duo
2x2 GB 800 MHz DDR2 SDRAM
ATI Radeon HD 2600 Pro 256 MB
1TB 7200 RPM SATA ST1000DM003-1CH162
If you want to read the whole time line, I've included it here. I apologize for it being so long.
At first I was running Lion (10.7.5) and the computer would enter sleep mode whenever I was doing anything with video. For example, watching YouTube videos and chatting on FaceTime. And funny enough, I distinctly remember watching a bunch of movies with VLC and the computer did not go to sleep (Although, this is not true anymore). I could wake the computer up and use it, however within a few minutes the computer would re-enter sleep mode. The computer seemed fine and I could access all of my files. Tried resetting SMC and it did not resolve the issue.
I made a Genius appointment to see if they were familiar with the issue. The iMac passed the in-store diagnostics test; it said all the components were functioning properly. He told me to bring it home to do a fresh re-install of my OS and then run my computer to see if the problem persisted. I took it home and reformatted my HDD with a 35-pass erase, re-installed Snow Leopard (10.6.8) and declined to transfer any backups from Time Machine. I was using a fresh system and sure enough, the problem persited. Tried doing the same thing again but with Lion (10.7.5) and still no luck. So I made another appointment and it passed the in-store diagnostics test again. I let them keep the computer for a 24-hour diagnostics test. They told me they would diagnose my computer with the OS on my HDD as well as a copy of OS that the Apple store deemed 'good' on an external HDD. The Genius called me and told me that my HDD failed their 24-hour diagnostics test and recommended I replace it. I initially had a 750 GB HDD, and the Apple Store could only offer me a 500 GB HDD ($200). I opted to take my computer to Carbon Computing, an authorized dealer in Toronto, to have a 1 TB Seagate HDD ($170) installed with no OS on it. I brought it home, performed another 35-pass erase and installed Snow Leopard. Problem still persisted. Repeated with Lion, still unsuccessful. Looking back, I was so excited that I just had to replace the HDD to fix the problem, I forgot to ask the guy if he could recreate the issue.
I began to suspect that it was a heating issue. So I installed Temperature Monitor and smcFanControl, and cleaned the fans as much as I could without taking the computer apart. Without smcFC on I tried to recreate the problem and I noticed that the Power Supply Position 1 reached 95 degrees Celsius, and Graphics Processor Temperature Diode reached 97 degrees Celsius before entering sleep mode. I don't know much about temperature sensors and what they monitor specifically, and so I couldn't draw any conclusions from that data. I turned on smcFC and cranked the optical drive speed to 2000 RPM, HDD to 3000, and CPU to 3000. The computer still went to sleep but the temperatures were below 90 degrees Celsius before entering sleep mode. I've tried researching here and on the internet about normal operating temperature ranges of iMacs and generally found that most do reached that temperature but they do not go to sleep mode.
Then I thought it may be a problem with Lion so I upgraded to Mountain Lion. The issue still persisted. Tried resetting SMC and NVRAM, did not resolve issue.
I called the same Apple Store explaining to them that their recommendation of replacing the HDD did not resolve the issue. They told me to bring it in and have them check it out again. I went through the same process I did before; the iMac passed all of their diagnostic tests. The Genius told me this time he will test out the RAM. He called me and told me that he could replicate the problem and so he proceeded to put in a stick of 'good' Apple RAM, but the computer would not work. He said the 'good' Apple RAM was damaged, either before or in the process of putting it in. He plugged in my old stick of RAM and the computer worked. He tried to recreate the problem and claimed that the computer ran for over 24 hours with an existing movie on my HDD playing and it did not go to sleep mode. However, once I brought it home I played the same movie right away and it turned off 17 minutes into the movie. Tried resetting SMC and NVRAM again, ran the movie again, still went to sleep.
And that's the story for now...

Now to find out WHY it does it at home only. How hot is it at home? Have you checked the AC current/voltage at home?
Well they were able to replicate the issue at the Apple Store the second time I left my computer there. Anyway, we don't have any heating on at my house at the moment. It's usually from around 20-23 degrees Celsius (72-75 F). Temperature Monitor says ambient temperature is 30 degree C though...
I'm not really sure how to check the AC current/voltage at home, but my computer worked before I moved it. So I'm not sure if that is the issue.
I normally only have speakers set up to my computer and a wired keyboard. The speakers are powered separately. I would assume that at the Apple Store only the power cord and wired keyboard are connected.
What is the Power Supply Position? And what does it do?
Thanks for your help!

HP Officejet 4620 All-in-One Loses Connection to Wireless Network When It Goes Into Sleep Mode

My HP 4620 All-In-One wireless printer works fine until it goes into sleep mode. Once it goes into sleep mode, it doesn't wake up if a print job is sent to it. If I wake it up manually by pressing the blinking on/off button, it still doesn't print. If I completely turn it off and then on again, the print job that was queued on my computer will start printing, but that's a huge pain and waste of time nearly every time I want to print. I've installed all available updates. I also assigned a static IP address in an effort to correct this but nothing helps. I see that others have complained about this problem, but I do not see that anyone has had success resolving this. My operating system is Windows Vista. I use a Link-Sys Wireless G Router. Thanks.
This question was solved.
View Solution.

so I have called HP tech support 12 times over the last 6 weeks and still my HP Officejet 4620 loses connection overnight. Of course becasue it was a birthday present I spent more time than I normally would have on this issue. While the tech are very polite they have not fixed my problem and now it is too late to return printer to store. This is a lot of money wasted and I think they need to admit this is a bug in this printer and resolve the problem!!!!!

Going to noarchivelog mode in 10gR2

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