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 Scenarios  |  Question 18 of 25    Print  
If the entire disk is corrupted how will you and what are the steps to recover the database

  
Total Answers and Comments: 2 Last Update: October 04, 2006   
  
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 Best Rated Answer
Submitted by: Ritesh Singh
 

if the entire disk is corrupted and no backup is there don nothing sit and relax their is no possibility of recovery ...a backup is required for restoration and for recovery redo log and archive logs.

Once if you have theses than think of recovering ..a dba should always plan for the recovery scenario depending upon the criticality of the database.oracle provides 0% data loss facilty through data guard and online backup .its dba who has to decide. 



Above answer was rated as good by the following members:
anandshrma
July 07, 2006 11:05:50   #1  
Ritesh Singh        

RE: If the entire disk is corrupted how will you and w...

if the entire disk is corrupted and no backup is there don nothing sit and relax their is no possibility of recovery ...a backup is required for restoration and for recovery redo log and archive logs.

Once if you have theses than think of recovering ..a dba should always plan for the recovery scenario depending upon the criticality of the database.oracle provides 0% data loss facilty through data guard and online backup .its dba who has to decide. 


 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    
October 04, 2006 00:28:47   #2  
prakashpichika Member Since: June 2006   Contribution: 12    

RE: If the entire disk is corrupted how will you and w...

Entire Disk is corrupted???

1) Production database runs on RAID Levels or on HUGE EMC Storage!

2) Changes are less for data loss on all disks - if it's on RAID! Yes - if there is a failure with Disk Controller which control’s the Disk’s.

3) Backup Strategy – which you Business Implements!

Daily Hot Backups, Weekly Cold backups & Monthly Backup! If you have everything on Tape – Veritas Net Backup or What ever! You are safe!

As a DBA your responsibility is to make sure that you have restore & recovery options available.

Cheers

more details

Ravi Prakash


 
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