Solved

Symantec Backup Exec SQL backup 3.5 times larger

Posted on 2011-03-14
9
370 Views
Last Modified: 2012-05-11
I am running Symantec Backup Exec 12d on Server 2003.  It is backing up two SQL 2000 instances running on Server 2003 x64.

The first one appears to work correctly, the backup and database sizes are nearly identical.  However, the other database is backing up 3.5x MORE data than actually in the database(s).  The final backup is showing at nearly 230GB while the sum of the databases is only about 65GB.

This is eating through my tapes rather quickly as well as causing this backup to run significantly longer then expected.
0
Comment
Question by:americaneldercare
  • 6
  • 2
9 Comments
 
LVL 7

Expert Comment

by:Cboudroz
ID: 35130913
is it possible that you are using the option "Append to the existing backup set"?
0
 

Author Comment

by:americaneldercare
ID: 35131227
We are using that option, however I am under the impression that is allowing it to append to the existing tape - not increase the actual size of the current backup it is recording.

To make sure we are speaking of the same thing, I am referring to the actual "byte count" of the individual backup, not the total GB consumed on the backup media.  The "Byte count" on the differential based backup is showing as 266GB - when I check the details, it is indicating that ~228GB of that is coming from a database which only totals 65GB, another 37GB is coming from a database totaling ~40GB, and the remainder from a few folder (these don't change often so under a differential only a few 100 MB's are written).

A full backup of the same system, using the same selections, and also tagged as 'append to media, overwrite if not appendable media is available' totals only 104GB.
0
 

Author Comment

by:americaneldercare
ID: 35131477
I am testing putting this backup job on hold and creating a new one as a copy off of the "Full" which, as indicated, appears to be functioning correctly.
0
Migrating Your Company's PCs

To keep pace with competitors, businesses must keep employees productive, and that means providing them with the latest technology. This document provides the tips and tricks you need to help you migrate an outdated PC fleet to new desktops, laptops, and tablets.

 
LVL 7

Expert Comment

by:Cboudroz
ID: 35131496
are you dropping to the same tape in both example?
0
 

Author Comment

by:americaneldercare
ID: 35131529
No, we have a tape library.  Certain tapes are designated for Full and others Differential, and the individual jobs are designated to use their appropriate tape sets.
0
 
LVL 55

Expert Comment

by:andyalder
ID: 35141867
Sounds like a problem with the selection list, you might have the physical file as well as the database that lives in that file selected for example. Text view rather than the graphical view readily shows the difference if there is one.
0
 

Author Comment

by:americaneldercare
ID: 35165186
the "new" job created by copying the Full is working correctly.  Compared the text view of selections as well as the 'View Summary' between the original and current Differential backups - only difference currently is the old one had "Advanced Open File" on.  enabled for the new one, will see if the next differential (monday) runs any different.

otherwise, it appears that *something* is just corrupt with the original backup.
0
 

Accepted Solution

by:
americaneldercare earned 0 total points
ID: 35207875
it appears the 'Advanced Open File' is causing an issue.  The backups prior to me turning it on were working fine, after I turned it on we are having the issue again.  Turning it off again.
0
 

Author Closing Comment

by:americaneldercare
ID: 35910039
not sure why the Advanced Open File option causes this issue, but not using it resolves the problem.
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

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

This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
The Delta outage: 650 cancelled flights, more than 1200 delayed flights, thousands of frustrated customers, tens of millions of dollars in damages – plus untold reputational damage to one of the world’s most trusted airlines. All due to a catastroph…
Via a live example, show how to set up a backup for SQL Server using a Maintenance Plan and how to schedule the job into SQL Server Agent.
Viewers will learn how the fundamental information of how to create a table.

829 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