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RMAN Interview Questions

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RMAN encryption option

Asked By: shanthiavari | Asked On: Jun 10th, 2008

List the encryption options available with RMAN?

Answered by: msmanan on: Jun 19th, 2009

Configure encryption for database on
Configure encryption algorithm 'AES256'

Answered by: pradipta182 on: Sep 26th, 2008

RMAN offers three encryption modes: transparent mode, password mode, and dual mode

Is it possible to take catalog database backup using RMAN?

Asked By: krishnaprasad.sola | Asked On: Feb 2nd, 2009

Answered by: msmanan on: Jun 19th, 2009

Yes, you can perform backup of catalog database using RMAN with below steps:1. Start the RMAN with NOCATALOG option.2. Run the recovery catalog database in ARCHIVELOG mode.3. set the retention policy ...

RMAN tape backups

Asked By: shanthiavari | Asked On: Jun 9th, 2008

How do you setup the RMAN tape backups?

Answered by: shrikant2711 on: Mar 20th, 2009

RMAN Target / run{Allocate channel ch1 device type sbt_tape maxpiecesize 4gFormat'%D_%U_%T_%t';sql 'alter system switch logfile';Backup database;backup archivelog from time 'sysdate-7';Backup Format '...

RMAN with netbackup, tsm type library

Asked By: shanthiavari | Asked On: Jun 10th, 2008

What are the steps required to perform in $Oracle_home for enabling the RMAN backups with netbackup or tsm tape library software?

Answered by: krishnaprasad.sola on: Feb 2nd, 2009

HI,    I can expalin what are all the steps to take a rman backup with TSM tape library as follows1.Install TDPO (default path /usr/tivoli/tsm/client/oracle/)2.Once u installed the TDPO,auto...

Answered by: abdulwahab on: Jun 30th, 2008

How RMAN works with TAPE with TSM ?

Clone database using RMAN

Asked By: shanthiavari | Asked On: Jun 10th, 2008

How do you clone the database using RMAN software? Give brief steps? When do you use crosscheck command?

Answered by: taya_ronak on: Dec 17th, 2008

Two commands available in RMAN to clone database:

 1) Duplicate

 2) Restore.

Answered by: moulvi on: Dec 13th, 2008

Check whether backup pieces, proxy copies, or disk copies still exist.

RMAN catalog view

Asked By: shanthiavari | Asked On: Jun 10th, 2008

List some of the RMAN catalog view names which contains the catalog information ?

Answered by: moulvi on: Dec 13th, 2008

RC_DATABASE_INCARNATION,RC_BACKUP_COPY_DETAILS,RC_BACKUP_CORRUPTION,
RC_BACKUP-DATAFILE_SUMMARY to name a few

In catalog database, if some of the blocks are corrupted due to system crash, how will you recover?

Asked By: mkguduru | Asked On: Aug 12th, 2008

Answered by: moulvi on: Dec 13th, 2008

using RMAN BLOCK RECOVER command

Raid, raid0, raid1 and raid10

Asked By: shanthiavari | Asked On: Jun 9th, 2008

What is raid? What is raid0? What is raid1? What is raid 10?

Answered by: sasikumar12 on: Dec 9th, 2008

RAID: It is a redundant array of independent disk
RAID0: Concatenation and stripping
RAID1: Mirroring

Backup strategy

Asked By: shanthiavari | Asked On: Jun 9th, 2008

What are things which play major role in designing the backup strategy?

Answered by: taya_ronak on: Dec 7th, 2008

Cold backup: shutdown the database and copy the datafiles with the help of O.S. command. this is simply copying of datafiles just like any other text file copy. Holt backup: backup process start...

Answered by: fbchua on: Oct 17th, 2008

I Believe in designing a good backup strategy it will not only be simply backup but also a contingency plan. In this case you should consider the following:1. How long is the allowable down time durin...

Manual backup

Asked By: shanthiavari | Asked On: Jul 22nd, 2008

You have taken a manual backup of a datafile using o/s. How RMAN will know about it?

Answered by: tiwari.abhijeet on: Sep 8th, 2008

You have to catalog that manual backup in RMAN's repository by command
RMAN> catalog datafilecopy '/DB01/BACKUP/users01.dbf';

restrictions:
> Accessible on disk
> A complete image copy of a single file

RMAN block corruption

Asked By: shanthiavari | Asked On: Jun 10th, 2008

How do you identify the block corruption in RMAN database? How do you fix it?

Answered by: oracle56 on: Aug 24th, 2008

First check whether the block is corrupted or not by using this commandsql>select file#, block#  from v$database_block_corruption; file#  block  2        507the above block is corrupted.....

Answered by: kishoredba on: Jul 21st, 2008

using v$block_corruption view u can find which blocks corrupted.

Rman>> block recover datafile block ;

Using the above statement u recover the corrupted blocks.

Thanks & Regards,
Kishore.

Time based hot backup recovery

Asked By: shanthiavari | Asked On: Jun 10th, 2008

Outline the steps involved in time based recovery from the full database from hot backup?

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