How to Change the settings related to Veeam Backup & Replication Log Files

KB ID: 1825
Product: Veeam Backup & Replication
Veeam Cloud Connect
Published: 2013-10-09
Last Modified: 2022-01-05
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Purpose

This article documents how to change settings regarding where log files are stored, how large a log file may become, and how many generations of log files are retained.

Solution

Log files stored on the Backup Server

The following registry values must be created on the server where Veeam Backup & Replication is installed.
The Backup Server must be rebooted after changing any log related settings in the registry.

Expand sections below to view more information:

Log directory location
This registry value is not present by default and may need to be manually created.

Determines where log files created by Veeam Backup & Replication will be stored.

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: LogDirectory
Value Type: String Value
Value Data: <path_on_server>
Default: C:\ProgramData\Veeam\Backup

Path requirements
  • The path provided must be to a folder on a drive of the Backup Server, without the trailing slash. 
  • The path cannot be a remote location or mapped drive.
Maximum individual log file size

When a log file becomes larger than the specified value, a new file is created.

Example:
Svc.VeeamBackup.log -> Svc.VeeamBackup_1.log

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: MaxLogSize
Value Type: DWORD (32-Bit) Value
Value Data: <value in KiB>
Default: 10240 (Decimal)

Maximum individual log file generations to retain

As an individual log file grows larger than the maximum size a new generation of log files is created. This registry setting controls the maximum number of generations of log files to be retained.

Example: Svc.VeeamBackup_1.log, Svc.VeeamBackup_2.log, Svc.VeeamBackup_3.log, etc.

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: MaxLogCount
Value Type: DWORD (32-Bit) Value
Value Data: <##>
Default: 10

Maximum total size of uncompressed logs per job folder
This registry value is not present by default and may need to be manually created.

When the total size of all uncompressed log files within a folder is greater than this value, all logs in the folder are compressed into an archive.

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: UncompressedLogsMaxTotalSize
Value Type: DWORD (32-Bit) Value
Value Data: <value in KiB>
Default: 512000

Maximum log archive generations to retain
This registry value is not present by default and may need to be manually created.

An archive is created when the total size of uncompressed log files within a folder becomes larger than the maximum size. This setting controls how many generations of those archives are to be retained.

Example: Svc.VeeamBackup.1.gz  Svc.VeeamBackup.2.gz

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: LogsArchivesMaxCount
Value Type: DWORD (32-Bit) Value
Value Data: <##>
Default: 10

Log files stored on Windows component servers

For example Proxies, Mount Servers, Gateway Servers, Repositories, WAN Accelerators, Tape Servers, etc.

The following registry values must be created on the Windows component server itself.
After changing any of the following settings the Windows component server itself must be rebooted.

Expand to view more information:

Maximum individual agent log file size
This registry value is not present by default and may need to be manually created.

When a log file becomes larger than the specified value, a new file is created.

Example:
 Agent.DC.Source.DC.log -> Agent.DC.Source.DC.1.log

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: AgentMaxLogSize
Value Type: DWORD (32-Bit) Value
Value Data: <value in Bytes>
Default: 15728640 (Decimal)

Maximum individual log generations to retain
This registry value is not present by default and may need to be manually created.

As an individual log file grows larger than the maximum size a new generation of log files is created. This registry setting controls the maximum number of generations of agent log files to be retained.

Example: Agent.DC.Source.DC.1.log, Agent.DC.Source.DC.2.log,Agent.DC.Source.DC.3.log etc.

Key Location: HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
Value Name: AgentMaxLogCount
Value Type: DWORD (32-Bit) Value
Value Data: <##>
Default: 10

Log files stored on Linux component servers

The following settings are only available in Veeam Backup & Replication 10a or newer.

For example Proxies, Repositories, etc.

The following settings must be created on the Linux component server itself in the /etc/VeeamAgentConfig file.
After changing any of the following settings the Linux component server itself must be rebooted.

Expand to view more information:

Maximum individual agent log file size
This value is not present in the configuration file by default and may need to be manually created.

As an individual log file grows larger than the maximum size a new generation of log files is created. This registry setting controls the maximum number of generations of agent log files to be retained.

Example: Agent.DC.Source.DC.1.log, Agent.DC.Source.DC.2.log,Agent.DC.Source.DC.3.log etc.

Config File Location: /etc/VeeamAgentConfig
Entry Name: AgentMaxLogSize
Data: in BYTES
Default: 15728640

Example: AgentMaxLogSize=67108864‬

Maximum individual agent log generations to retain
This value is not present in the configuration file by default and may need to be manually created.

When a log file becomes larger than the specified value, a new file is created.

Example:
 Agent.DC.Source.DC.log -> Agent.DC.Source.DC.1.log

Config File Location: /etc/VeeamAgentConfig 
Entry Name: AgentMaxLogCount
Data: <numeric value>
Default: 10

Example: AgentMaxLogCount=32

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