Solved

Differrential & Incremental Backup

Posted on 2011-03-12
3
470 Views
Last Modified: 2012-05-11
Hi All,

Could anyone confirm if my understanding below of Differential and Incremental backups is correct? Please confirm if what I have stated below is correct?

DIFFERENTIAL BACKUP:
Sunday: Full Backup is performed.
Monday : File A has changes, so only file A is backed up.
Tuesday : File B has changes, so file A and File B is backed up.
Wednesday: File A and C change, so File A, File B and File C are backed up.
 
Restoration for Differential: Sunday's Full backup is restored and then Wednesday's backup is restored.
 
 
INCREMENTAL BACKUP:
Sunday : Full backup is performed
Monday : File A changes, so only file A is backed up.
Tuesday : File B changes, so only file B is backed up.
Wednesday : File A and C change, so only file A and C are backed up.
0
Comment
Question by:ben1211
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 96

Assisted Solution

by:Lee W, MVP
Lee W, MVP earned 166 total points
ID: 35115492
Yes, that is correct.
0
 
LVL 17

Accepted Solution

by:
jburgaard earned 167 total points
ID: 35115668
I use to think of this as a matter of backup-bit change.
Every file has some properties including backup-bit.
Differentiel backup does not change the backup-bit,
Incremential does change the backup-bit.
0
 
LVL 21

Assisted Solution

by:SelfGovern
SelfGovern earned 167 total points
ID: 35123383
Or, think of it this way -- Differential backs up everything changed since the last full backup.
Incremental backs up everything changed since the most recent incremental or full backup.

JBurgaard is correct about how the archive (backup) bit works.
0

Featured Post

Webinar: Aligning, Automating, Winning

Join Dan Russo, Senior Manager of Operations Intelligence, for an in-depth discussion on how Dealertrack, leading provider of integrated digital solutions for the automotive industry, transformed their DevOps processes to increase collaboration and move with greater velocity.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article we will learn how to backup a VMware farm using Nakivo Backup & Replication. In this tutorial we will install the software on a Windows 2012 R2 Server.
Microsoft will be releasing the Windows 10 Creators Update in just a matter of weeks. Are you prepared? Follow these steps to ensure everything goes smoothly and you don't lose valuable data on your PC.
Windows 8 came with a dramatically different user interface known as Metro. Notably missing from that interface was a Start button and Start Menu. Microsoft responded to negative user feedback of the Metro interface, bringing back the Start button a…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question