Video Screencast Help

True image restoration

Created: 25 Jan 2012 • Updated: 26 Jan 2012 | 3 comments
This issue has been solved. See solution.

What is meaning of True image restoration? 

 

How is it different from a normal restore that happens from tape? 
 
Thanks,
Soumya.

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Mark_Solutions's picture

Let me try and explain ....

Normal backup:

Full backups up files A, B and C

Incremental backups up D

Next Incremental backups up C again as it has been moved to a different location (but with TIR with move detection it would not be backed up as its movement would be detected)

Next incremental doesnt back up anything but file B has been deleted.

Without TIR a total restore will used the full backup first and restore A, B and C, followed by the incremental of D plus the incremental of C in the new location

With TIR a total restore will restore the system as it was at the time of the last backup (whether Full or Incemental) so will lay down pointers using the TIR information first and then fill in the gaps, so will restore only A, C and D (in it final location only)

It is only of any use if you do incremental backups but the difference is without it you would end up with file B plus a second copy of file C and will have done an extra backup of file C

Hope this explains it?!

Authorised Symantec Consultant

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SOLUTION
Soumyaa's picture

Excellent explanation and I got it now. Is this TIR concept from 7.1 or from earlier versions also?

Mark_Solutions's picture

Goes back to at least V5 I believe - have the feeling it was in 4.5

If happy then dont forget to mark the entry that helped as a solution to close the thread and assist other searching for a similar matter in the future

#edit# Just checked and it was in V 4.5 - can't find my 3.4 Admin Guide!

Authorised Symantec Consultant

Don't forget to "Mark as Solution" if someones advice has solved your issue - and please bring back the Thumbs Up!!.