Difference betwen RMAN,COLD and HOT backup

Hi Experts,
I have faces some interview question .
what is difference between COLD and HOT backup ?
what is difference between RMAN, COLD and HOT backup?

You mean the following,
Mark the beginning of the online tablespace backup.
SQL> ALTER TABLESPACE users BEGIN BACKUP;
Back up the online datafiles of the online tablespace with operating system commands. For UNIX:
% cp /oracle/oradata/trgt/users01.dbf /d2/users01_'date "+%m_%d_%y"'.dbf
After backing up the datafiles of the online tablespace, run the SQL statement ALTER TABLESPACE with the END BACKUP option.
SQL> ALTER TABLESPACE users END BACKUP;
Please visit here for more details:
Making User-Managed Backups of Online Read/Write Tablespaces
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/osbackup004.htm#sthref1489
Adith

Similar Messages

Difference between cold,warm and hot backup

Hello Pals,
Can you explain the types of backups and when we suppose to go
for which type?
TIA
Prakash

I just know basically two types of backups: consistent (cold)
and unconsistent (hot).
Closed DB backup (cold): The database must be closed using
shutdown normal, transactional or immediate. After this you copy
all datafiles, control files, redo logs, and if you want
(recomended) the parameter file and password file using an OS
command. This is also called a whole backup.
Opened DB backup (hot): This is for databases 24x7 or when you
need to backup the database without closing it. You can backup
the database while it is open but you need to have it in
archivelog mode. You need to read more details for this type of
backup in the product documentation.
Recovery Manager also presents another types of backups.

Using Data Guard and hot backups - 9.2.0.6.0

Hi all,
I have an existing 9.2.0.6.0 database that is setup in a DataGuard environment - one primary database with a physical standby in a separate datacenter. It is all setup and it works beautifully. On our primary database, we currently have 2 different types of backups we are doing - we do an export of the main schema (all of the application data is all in this one schema) 4 times a day, and we do a full database hot backup once a night.
My question is in regards to the hot backup - I don't know that it is even worth doing a hot backup of this database? I am trying to think of a situation where we would actually want to restore a hot backup of the primary database... If we ran into some kind of a data issue, it would probably be quickest and easiest to restore data from one of the exports, and when we did that restore (import), I assume that data change would be replicated through DataGuard to the standby site. But if there was some kind of situation where we wanted to restore a recent hot backup of the primary database, that would essentially break the Data Guard configuration, and I assume that after the hot backup was restored, we would have to somehow re-instantiate Data Guard on the standby site.
Does anyone have any input on this? If you are running with DataGuard, is it even worth it to be doing hot backups? What kind of situation would call for restoring a hot backup, instead of just failing over to the standby?
Thanks!
--Brad

If we ran into some kind of a data issue, it would probably be quickest and easiest to restore data from one of the exportsIt would be quickest to failover to stand by database than restroing from dump file. After all you maintaing stand by db for that reason.
How can you restore database up to the latest changes using export/import ? You may have to restore using rman and apply the logs.
You can backup from stand by database. You do not need to back up primary.

10g rman database and archivelogs backup with multipled archlog destination

I would like to use the 10g database and archivelogs backup statetement
backup database plus archivelog;
I would like to restrict the location of the archivelogs backed out as I am multiplexing the
archivelogs
I did not find a LIKE statement and the backup database plus archivelog
Did i miss something
patrick boulay

I meant backup
I just want to restrict rman form backing up the two location using the 'one shot' 10g syntax
I used to backup using two steps
1) datafile
2) archlogs with a LIKE expression to tell Rman where to find the archlogs
1+2 with autobackup of control+spfile
the 'backup database plus archivelog ' syntax does accept a 'LIKE' expression
patrick

RMAN OBULETE and Expired Backup

HI Experts
i need a query which can tell me about my expired backups and Obsolete backups . my recovery window is of 14 days
My database version is 10g(10.2.0.4) on AIX 6.1
regards,

AMIABU wrote:
HI Experts
i need a query which can tell me about my expired backups and Obsolete backups . my recovery window is of 14 days
My database version is 10g(10.2.0.4) on AIX 6.1
regards,Use command:
Rman > crosscheck backup;
Rman > crosscheck archivelog all;
Rman > list backup;
Rman > list archive logall;
Expired Backup: List Expired
Then use report obsolete command it show the backup that you dont need it and after that use Delete obsolete command
It will delete the backup that you dont need it.
The term obsolete does not mean the same as expired. In short obsolete means "not needed " whereas expired means "not found."
reference: http://download.oracle.com/docs/cd/B14117_01/server.101/b10734/rcmconc3.htm
http://www.geekinterview.com/question_details/66392

Rman Full and Archivelog backups

I am scripting my rman stuff and it's part of a much larger Perl maintenance. I have nightly and hourly jobs. Nightly will do a full backup and hourly will do archivelog backup. Full backups take about 2-3 hours.
My question is: is there a problem with running archivelog backups be running while I am doing a full backup. If system resources are not an issues, what are some arguments for or against it?

Thanks Tychos.
That is something that I've debated - if my full would be with Plus ArchiveLog or not. So, I've decided not to backup the log during a full backup.
This is for my nightly:
open (RMAN, "| rman target sys/$SYPASS\@$CSID catalog rman/$CATPSS\@catalog >$Rlog");
print RMAN <<"END";
run {
allocate channel d1 device type disk format \'$HBDir/$HBFiles\';
set controlfile autobackup format for device type disk to \'$HBDir/$ControlFile\';
backup as compressed backupset database;
crosscheck backup;
delete noprompt obsolete;
report need backup;}
END
close (RMAN);
This is the hourly:
open (RMAN, "| rman target sys/$SYPASS\@$CSID catalog rman/$CATPSS\@catalog >$Rlog");
print RMAN <<"END";
run {
allocate channel d1 device type disk format \'$TempArchHBDir/$BUFile\';
CROSSCHECK ARCHIVELOG ALL;
set controlfile autobackup format for device type disk to \'$HBDir/$ControlFile\';
backup archivelog all not backed up 1 times delete input;
END
close (RMAN);

Difference betwenn the SRM and EBP

Hi All,
WIll some one help me in understanding the difference between the EBP and SRM.
I am not very clear about these two concepts.
Regards
Chicky

HI
SRM - Resembles Supplier RElationship MAnagement Module
Within that EBP - Enterprise Buyer Professional is a central Components
Other componenets are
CCM - catalog Content Management
SUS - Suppliers self service
BE - Bidding ENgine
this are all part of SRM
regards,
Nimish Sheth
do reward points for helpful answers

RMAN script for hot backup (looking for code critic) code attached.

Hello Guru's,
I have been having soem trouble running a successful hot full rman backup nightly.
We max our CPU load whenever our RMAN takes too long and conflicts with a Legato tape backup. I have a development server that I attempted to get a consistent backup time duration that is rock solid as to not conflict with the Legato backup time.
I just found out about duration with RMAN scripts here is my code:
#!/bin/bash
#rman backup script for daily hot whole database backup
at -f /hd1/rman_scripts/rman_backup 0600 tomorrow
rman target/
run {
allocate channel d1 device type disk format '/path/%U';
backup duration 1:00 partial minimize load database filesperset 1;
backup as BACKUPSET tag '%TAG' database;
backup as BACKUPSET tag '%TAG' archivelog all delete all input;
delete noprompt obsolete;
release channel d1;
exit
It completes the backup, but does not use the 1 hour allocated- it only uses 15 minutes on average and creates many files instead of normally three backup files.
Here is the results from querying the v$rman_status table for operation,status,start_time:
RMAN,FAILED, 17-OCT-06 0600
BACKUP,FAILED,17-OCT-06 0600
RMAN,FAILED,17-OCT-06 0606
BACKUP,COMPLETED,17-OCT-06 0606
BACKUP,COMPLETED,17-OCT-06 0606
BACKUP,FAILED,17-OCT-06 0615
RMAN,COMPLETED,17-OCT-06 1513
REPORT,COMPLETED,17-OCT-06 1513
DELETE,COMPLETED,17-OCT-06 1513
However, the timestamps of the backupset files it creates is:
06:15 and not 1513?????????????
RMAN appears to have only taken 15 minutes to create the files, why do I have a completed timestamp from v$rman_status of 1513???
Please advise and comment, I am just learning RMAN.

Try to remove the DURATION option in your script.
Here more details about that part.
http://download-east.oracle.com/docs/cd/B19306_01/backup.102/b14194/rcmsynta009.htm#i1010261
Bye, Aron

RMAN Vs Traditional Hot backup

Hi,
For traditional, we have to place the entire database/list of tablespace to backup mode. We get a lot of redo eventually archived logs.
For RMAN, does Oracle internally behaves the same way? Does it put the database in backup mode internally ?
Please put some light to it please.
Thanks
Cherrish Vaidiyan

Very short answer: no and no.
Short answer: http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/glossary.htm#sthref831.
Long answer: http://knol.google.com/k/oracle-begin-backup-end-backup#
Edited by: P. Forstmann on 12 avr. 2010 21:34

Licence counting for cold and hot standby

Hi,
I'd like to ask if I use cold standby or hot standby approach, how does the license (Oracle EBS, database and app server) count? Thanks.

Please contact your Oracle Sales representative, he/she is the best one to answer license questions.
You may also review this link and see if you could find some details.
Global Pricing and Licensing
http://www.oracle.com/us/corporate/pricing/index.html
Thanks,
Hussein

Difference Betwen #include statement and Import statement

What is the Difference between #include and Import statements!

Why do you need to shout! Are you unware that English has a question mark that is used at the end of a question sentence! Java doesn't have #include! It only has import!
Import in Java simply tells the compiler that when you say, for example, List, you mean, for example, java.util.List! It does not affect the generated class file in anyway!
#include in C/C++ causes the body of the reference file to be inserted into the compilation stream! So, unlike Java's import, that file actually gets compiled into the final output!

Difference betwen short text and long text

Hi,
what is the difference between short text, long text and variant.

Hi,
Short text is the short description you give for an object or field simlarly long text is the long description for a object or field.
Short text cannot have lenght more than 20 and long text more than 60.
Variant means for example if you give certain values as an input in one of your transaction for testing and you want the same values to be used every time you test in that particular screen, then instead of inputting the values again n again you call the variant.
Hope this helps
Assign points if useful
Regards,
venkat

RMAN tables and last backup done

Hi,
in 10g R2
which table and which column should be queried to see the last Rman Back up ?
Thank you.

hi,
You get the info from below query.
select RECID ,to_char(START_TIME,'DD-MON-RR HH:MI AM'),to_char(COMPLETION_TIME,'DD-MON-RR HH:MI AM') from v$backup_set where START_TIME>trunc(SYSDATE);
Regards
Jafar

Difference betwen cash sales and rush order

hai members
pl mail me the diff bet Cash Sales And Rush Order
and there implication in Billing documents.
mail me to: [email protected]

<b>Rush Order</b>
In a rush order, the customer picks up the goods immediately, or you deliver them on the same day as when the order was created. When you save the rush order, a delivery is automatically created in the standard system. Billing the rush order takes place as normal, after the delivery.
In the standard system, sales document type RO is saved for rush orders with immediate delivery type LF. Once the goods have been removed from storage, the goods are picked, and goods issue is posted.
Once the billing documents are created (for example, in collective processing), invoice papers are printed and sent to the customer.
IN IMG-SD-SALES-SALES DOCUMENT HEADER-ORDER TYPE RO/CS U CAN SET A FOR IMMEDIATE DELIVERY IN SHIPPING WHICH CREATES DELIVERY AUTOMATICALLY WHEN U SAVE SALES ORDER
<b>Cash Sales</b>
In cash sales, you can process an order for when the customer orders the goods, picks them up, and pays for them immediately. The delivery is processed at the same time as when the order is created and a cash invoice is printed immediately: billing is therefore related to the order, unlike rush and standard orders. Receivables are not created for the customer, as they are for rush and standard orders because the amount in the invoice is immediately posted to a cash account.
In the standard system, sales document type BV (CS) is saved for cash sales with immediate delivery type BV.
When the sales employee creates a cash sale, the system automatically proposes the current date as the date for delivery and billing. Once the order has been posted, a delivery with type BV is created immediately in the background and the system prints a document that is used as an invoice for the customer.
The invoice papers are controlled with output type RD03, contained in the output determination procedure for order type CS.
Regards,
Rajesh Banka
Reward suitable points.
How to give points: Mark your thread as a question while creating it. In the answers you get, you can assign the points by clicking on the stars to the left. You also get a point yourself for rewarding (one per thread).

Difference betwen AP div and normal div tags

Hi,
I am New to CSS, well i know a little theory about but now is
the first time iam going to do a complete project with it. I want
some general relfexions from experienced users:
- When do you use AP div tags and when not?
- Which is the best normal div tags or AP divs?
Thank you

"mballom3" <[email protected]> wrote in
message
news:ggj2v7$t5f$[email protected]..
> Hi,
>
> I am New to CSS, well i know a little theory about but
now is the first
> time
> iam going to do a complete project with it. I want some
general relfexions
> from
> experienced users:
>
> - When do you use AP div tags and when not?
> - Which is the best normal div tags or AP divs?
AP = absolutely positioned.
Here's a demo of the various types of positioning in action:
http://www.great-web-sights.com/g_layersdemo.asp
and here's a little bit of explanation:
http://www.pactumweb.com/tutorials/css-p.php
The short of it is that absolute positioning looks really
tempting to those
who think their sites should be pixel-precise... but there
are far too many
sharks in the water if you don't know what you're doing. I
certainly
wouldn't recommend starting there; AP is a useful tool when
used
knowledgeably and sparingly. It is much wiser to start off my
learning how
to use floats.
Tim G.
http://www.pactumweb.com
http://www.shortordersite.com

Difference betwen RMAN,COLD and HOT backup

Similar Messages

Maybe you are looking for