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Windows client DFSR backup fails with a Status Code 90.

Article: 100007766
Last Published: 2020-02-20
Ratings: 0 0
Product(s): NetBackup & Alta Data Protection

Problem

A Windows client with DFSR (Distributed File System Replication) fails a backup with a Status Code 90.

NetBackup status code: 90
Message: media manager received no data for backup image.
 

Error Message

In bptm:

- Info bptm (pid=28497) EXITING with status 90

In bpbkar:

<2> tar_base::V_vTarMsgW: INF - Filtered 'Shadow Copy Components' Object: E:\Shares

<2> tar_base::V_vTarMsgW: INF - Filtered 'Shadow Copy Components' Object: E:\Users

 

Cause

When the file selection includes is a drive letter and a path like, E:\shares, and E:\users...

The bpbkar (backup/archive) process records the selection like this:

<2> tar_backup_tfi::setupFileDirectives: TAR - backup filename = E:\shares
<2> tar_backup_tfi::setupFileDirectives: TAR - backup filename = E:\users

The Windows operating system excludes windows protected files (i.e. files/databases protected by Microsoft VSS Writers):
 

C:\>vssadmin list writers
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

Writer name: 'DFS Replication service writer'
Writer Id: {2707761b-2324-473d-88eb-eb007a359533}
Writer Instance Id: {2d0655d8-447a-4bf6-b874-8ed812cab65f}
State: [1] Stable
Last error: No error
 

Note:
E:\Shares and E:\Users belong to DFSR, which is controlled/protected by the Microsoft DFSR writer.

In that regard, the file path is excluded by the Windows VSS writer filters in the Windows registry.

In bpbkar log:

<2> tar_base::V_vTarMsgW: INF - Filtered 'Shadow Copy Components' Object: E:\Shares
<2> tar_base::V_vTarMsgW: INF - Filtered 'Shadow Copy Components' Object: E:\Users

The result is a backup path that was excluded by DFSR and therefore the backup is 0 files backed up.

In bpbkar:

<2> tar_base::backup_finish: TAR - backup: 0 files

With all of the backup paths excluded, the backup process (bpbkar) is not sending any data to the tape manager process (bptm) and the result is a Status Code 90 - media manager received no data for backup image.

 

Solution

To backup DFSR,  use a file list that includes Shadow Copy Components:/

SEE:
How to perform backup and restore of Microsoft DFSR data using NetBackup
https://www.veritas.com/support/en_US/article.100038589.html​​​​​​​

 

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