Document ID: 285992
http://support.veritas.com/docs/285992 E-Mail Colleague IconE-Mail this document to a colleague

Backup Exec 10.d -11.d for Windows Servers: One or more Distributed File System Replication (DFSR) replication groups may not be visible for selection if replication folder names are exactly duplicated, and as a result some replication folders are not backed up.
Details:

A potentially data threatening issue with backup using the Distributed File System Replication (DFSR) capability was introduced with Microsoft's Windows 2003 R2 release. This issue applies to Backup Exec 10.1 for Windows Server with Hotfix 31 (Windows 2003 R2 Support), and 11d (integrated R2 support). Any fixes included with Hotfix 31 for BEWS 10.1 will be retained with the application of this hotfix. All other versions of the product are not affected as they do not support Windows 2003.

How to Determine if Affected

The problem occurs when all of the following conditions simultaneously exist:
and
and
and

Description

In the figure below (Figure 1), there are two replication groups (Sales & Support), pointing to two different folders. However the 'target' folders are named the same.

The issue occurs because of the way in which the operating system presents the replication objects.  The operating system presents the replication folder name, rather than the unique group name. As a result, when two replication groups are presented with the same identifying folder name, Backup Exec ignores the second and only displays the first folder selection for backup.

Figure 1
 


Formal Resolution

This issue has been resolved in the hotfix and service packs listed below:

Symantec Backup Exec (tm) 10.1 (10d) for Windows Servers revision 5629 Hotfix 44
 http://support.veritas.com/docs/286041
Symantec Backup Exec (tm) 11.0 (11d) for Windows Servers revision 6235 Service Pack 3
 http://support.veritas.com/docs/303030

Workaround

The DFS Replication data protection interface does not report the Group Name associated with the Replication Folder names.  Therefore, to alleviate name conflicts and to better identify Replication Folder contexts, Symantec recommends including the Replication Group name with in the Replication Folder name when creating a Replication Folder.

Best Practices
Symantec strongly recommends the following best practices:
1. Always perform a Full backup prior to and after any changes to your environment.
2. Always make sure that your environment is running the latest version and patch level.

How to Subscribe to Software Alerts
If you have not received this TechNote from the Symantec Email Notification Service as a Software Alerts, please subscribe at the following link:
 http://maillist.entsupport.symantec.com/subscribe.asp




Supplemental Material:

System: Ref.#Description
ETrack: 837724 Synthetic backup misses some files and folders even after HF33
ETrack: 770345 DFSR : multiple groups with replication folders of the same name will not show more than one of the folders
ETrack: 851098 DFSR : multiple groups with replication folders of the same name will not show more than one of the folders
ETrack: 1109714 Need to improve browsing for DFSR

Products Applied:
 Backup Exec for Windows Servers 10d (10.1) 5629 SP1, 10d (10.1) 5629 SP2, 11d (11.0), 11d (11.0) 6235
Last Updated: May 22 2008 11:38 PM GMT
Expires on: 09-23-2008
Subscribe Via E-Mail IconSubscribe to receive critical updates about this document

Subjects:
 Backup Exec for Windows Servers
   Application: Backup, Backup To Disk, Bemcmd, Concurrent Backup, Patch
   Application Basics: Backup-Restore
   Operating System: Backup
   Publishing Status: Techalert
   Remote Agent For Windows Servers: Configure

Languages:
 English (US), French, German, Spanish, Italian, Japanese

Operating Systems:
Windows Server 2003

R2