How to Connect to an Object Storage Repository via AWS Privatelink / Direct Connect

Purpose This article documents the configuration of Veeam Backup & Replication for using AWS PrivateLink or AWS Direct Connect. These services enable the following connections without the use of public endpoints: Scale-Out Backup Repository offload to Capacity Tier or Archive Tier Backup and Back...

How to Create a Veeam Account

Challenge A Veeam account grants you access to the Veeam My Account Portal, the platform that allows you to perform the following actions: View Veeam licenses Download Veeam products Raise and update support cases Access Veeam technical resources Send sales inquiries and renewals requests Once yo...

How to Create a Custom SureBackup Test Script

Purpose This article provides information about creating custom SureBackup roles and scripts which can be used to enhance SureBackup testing. Solution Information regarding custom SureBackup roles can be found here: https://helpcenter.veeam.com/docs/backup/vsphere/creatingxmlfiles.html Informatio...

Veeam Agent for Microsoft Windows Built-In Case Creation fails with "The request was aborted: Could not create SSL/TLS secure channel"

Article Applicability This article is regarding an issue that impacts Veeam Agent for Microsoft Windows build 5.0.0.4301 or older, and was fixed in build 5.0.1.4584. Challenge When attempting to open a support case using the Technical Support button within the Veeam Agent for Microsoft Windows...

Job to the Linux Repository Fails with "No connection could be made because the target machine actively refused it xx.xx.xx.xx:2500"

Challenge When multiple tasks are attempting to use the same Linux repository simultaneously, some connections may fail with the error: No connection could be made because the target machine actively refused it xx.xx.xx.xx:2500. The port shown in the error is a data transmission port, and may be...

How to configure Email Notifications when using Gmail or Google Apps Mail in Veeam ONE

Challenge You need to configure email notifications to be sent to a Gmail or Google Apps Mail account in Veeam ONE. Cause Use of port 587 is required for TLS when communicating with Gmail or Google Apps Mail. Solution Set the Port to 587 in Veeam ONE console Options Server Settings SMTP Settings...

Sensitive data types in Veeam Backup & Replication and Veeam Backup for Microsoft 365 log files

Challenge When you open a support ticket, Veeam Customer Support specialists may request log files. These log files may contain information to which the terms of the data protection laws or internal company policies apply. Veeam Backup & Replication Veeam Backup & Replication log files may includ...

How to Migrate Veeam Service Provider Console to a New Server

The article describes how to move Veeam Availability Console installation and its database to a new server...

How to Simulate Veeam Backup & Replication Disk I/O

Purpose This article provides examples of using common workload simulators diskspd and fio to simulate Veeam Backup & Replication disk I/O. Do Not Send Test Output Files to Veeam Support The write test output files testfile.dat do not contain diagnostic data. As such, please do not attach them to...

How to Collect Logs for Veeam ONE

Purpose This article documents the process for gathering diagnostic logging from Veeam ONE. Solution Part 1: Collecting Veeam ONE Application Logs 1. Open the Veeam ONE Settings Utility Run: C:\Program Files\Common Files\Veeam\Veeam ONE Settings\VeeamOneSettings.exe 2. In the lower-left corner,...

Tips for DAG Exchange Backup and Replication in vSphere

vSphere Snapshot Improvements This article was initially written when vSphere 5 snapshot operations were known and expected to cause small amounts of I/O stun to a VM's guest OS. Improvements in the latter vSphere versions, including significant changes to snapshot operation methodology in vSpher...

How to Forcibly Stop Stuck Jobs

Notice of Future Change This article may be retired in the future. As the product has matured, the incidence of jobs or tasks becoming "stuck" has decreased significantly. However, there are instances where a job might be executing a background task, giving the appearance that it has become stuck...

The specified network name is no longer available

Challenge When accessing backup files on a CIFS SMB repository, Veeam Backup & Replication reports either of the following errors: The specified network name is no longer available. code 59, 0x8007003B An unexpected network error occurred. code 64, 0x80070040 Veeam Backup & Replication uses SMB...

Veeam Software Appliance/Veeam Infrastructure Appliance — Updater Component Vulnerability

Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program VDP for all Veeam products and perform extensive internal code audits. When a vulnerability is...

Release Information for Veeam Backup for Microsoft 365 8.1 and Cumulative Patches

More Recent Version Available Please find the latest version of Veeam Backup for Microsoft 365 here: Veeam Downloads - Latest Version Build Numbers and Versions of Veeam Backup for Microsoft 365 Requirements This release can be used to: update manually from a previous Veeam Backup for Microsoft 3...

Veeam Backup Enterprise Manager Vulnerability (CVE-2024-40715)

Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program VDP for all Veeam products and perform extensive internal code audits. When a vulnerability is...

How to Enable Extended Logging of SPNs Used During Connections

Veeam Backup & Replication 12 Feature This article is regarding a feature available starting in Veeam Backup & Replication 12. Purpose This article documents how to enable the logging of Service Principal Names SPNs used during Kereberos-based connections. Use Case When troubleshooting Kerberos...

Veeam Backup for Google Cloud - Critical Vulnerability (CVE-2022-43549)

Automatic Patching of Components The fix for the vulnerability discussed in this article has been automatically deployed to all Veeam Backup for Google Cloud Backup Appliances that have been configured to have access to repository.veeam.com. Most users will have no additional actions to perform...

Build Numbers and Versions of Veeam Agent for Oracle Solaris

This KB article lists all versions of Veeam Agent for Oracle Solaris and their respective build numbers. For more information on downloading the latest version of Veeam Agent for Oracle Solaris , visit: Veeam Agent for Oracle Solaris -- Current Version Download Page Veeam Agent for Oracle Solaris...

How to enable "Restore to Azure" Generation 2 VM Support

Feature Change in Veeam Backup & Replication 12.1 and higher Starting in Veeam Backup & Replication 12.1, the setting AzureEnableGeneration2VMRestore is now hard-coded to true. This change enables the restore to Microsoft Azure to generate Generation 2 VMsby default. Purpose This article document...

Veeam Cloud Connect jobs fail with "Authentication failed because the remote party has closed the transport stream" error

Challenge After upgrade of Veeam Backup & Replication on the Veeam Cloud Connect service provider's backup server to version 10, tenant jobs may start failing with the following error: "Authentication failed because the remote party has closed the transport stream ". At the same time, the...

How to disable TLS 1.0 with no impact on Veeam ONE functionality

Possible Veeam ONE issues with disabling TLS 1.0 protocol and their resolution plans...

How to Manually Recreate the Veeam ONE Database

Purpose This article documents how to manually create a new Veeam ONE database. Solution 1. Follow the steps for Creating Veeam ONE Database with SQL Script in the Veeam ONE User Guide. The link in this step will direct you to the most recent Veeam ONE version's user guide. If you are rebuilding...

Windows VSS Writers and Corresponding Service Names

Purpose This article documents VSS Writers and their corresponding Windows services. For more information, reference Microsoft's In-Box VSS Writers article. Solution VSS Writer Name | Service Name | Service Display Name ---|---|--- ASR Writer | VSS | Volume Shadow Copy BITS Writer | BITS |...

Release Information for Veeam Plug-In for Microsoft Azure 8.1 Patch 2

Requirements Please confirm that you are running version Veeam Plug-In for Microsoft Azure 8 build 8.0.0.334 or later before upgrading. You can find the currently installed build number Product version in the About section under Configuration | Support Information | Updates. After installing Veea...

How to Configure PXE Booting of Veeam Agent for Linux Recovery Media

Veeam Agent for Linux Version Requirement Starting with Veeam Agent for Linux 6.1.2, the Veeam Recovery Media is designed to be capable of use in PXE booting.veeam-recovery iso released after 22-May-2024 Purpose This article documents how to configure Linux to PXE boot the Veeam Agent for Linux...

How to Collect Process Dumps and Logs

Article Applicability This article was created to complement KB1727 and provide customers with specific instructions to collect information that will: Help Veam Support identify if the job or task is actually stuck or if it is working on something in the background. Help the Development team...

Antivirus Exclusions for Veeam Plug-ins for Enterprise Applications

Purpose To ensure the performance and reliability of Veeam Plug-ins for Enterprise Applications, we strongly advise implementing the antivirus exclusions outlined in this article. Interference caused by security software will not always cause Veeam Plug-ins for Enterprise Applications to fail; so...

How to manually collect recovery media logs for Veeam Agent for Linux

Challenge You cannot collect recovery media logs for Veeam Agent for Linux from the repository. In such a case, you can still manually collect recovery media logs from the Linux machine where the bare-metal restore is performed. Cause If the bare-metal restore is not completed, the recovery media...

How to Create Secure IAM Policy for Connection to S3 Object Storage

KB ID: | 3151 ---|--- Product: | Veeam Backup & Replication Published: | 2020-04-21 Last Modified: | 2026-08-10 Get weekly article updates SUBSCRIBE By subscribing, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice. Cheers for trusti...

Veeam Service Provider Console – Compile and Upload Management Agent Logs

Challenge This article covers how to Management Agent logs for both client agents and the Cloud Connect agent. Solution Export Management Agent Logs To export Veeam Service Provider Console Management Agent logs for one or more client agents, please: 1. Log into the Veeam Service Provider Console...

ConfigStoreRootPath Cluster Parameter Is Not Defined

Challenge This article describes how to fix the warning/error "ConfigStoreRootPath cluster parameter is not defined" appearing in the following situations: When attempting to add a Windows Server 2016 and later Hyper-V cluster to the Veeam Backup & Replication Console. When attempting to backup a...

Unable to exclude files from snapshot: Shadow Copy Optimization Writer timed out

Challenge A Veeam Agent for Microsoft Windows backup job configured to operate in file-level backup mode with an entire volume selected and individual folders excluded, may fail with the error shown below. Unable to exclude files from snapshot: Shadow Copy Optimization Writer timed out. Cause The...

Backup Copy "Source backup file has different block size."

Challenge The issue described in this KB Article only occurs when a Backup Copy job is using the Periodic copy pruning mode. During consecutive Backup Copy intervals, the same machine or group of machines fails to be processed. The message "Initial copy did not complete, and will resume on the ne...

How to Install, Change, or Remove the Veeam ONE License

Purpose This article documents how to manually install, change, or remove a license for Veeam ONE. Solution Install License 1. Open Veeam ONE Client. 2. Click the Main Menu ≡ in the top-left corner. 3. Click License. 4. In the dialog window that appears, click Install License. 5. Using the file...

VDDK Error 3 Troubleshooting

Challenge A Backup or Replication job fails with an error containing 'VDDK error: 3 ' This most often occurs when forcing aVMware Backup Proxy to use 'Virtual Appliance' transport mode and disabling the 'Failover to network mode' option. Cause The most common scenario is that the disks of the VM...

Onboarding a Microsoft 365 Organization Fails with: service principal name is already present for the tenant

Challenge When signing in with a device code during onboarding of a Microsoft 365 organization in Veeam Data Cloud for Microsoft 365 , the following error occurs: AADSTS650051: Consent action for Application '' failed due to following error: The service principal name is already present for the...

Build Numbers and Versions of Veeam Plug-In for HPE Morpheus VM Essentials

This KB article lists all versions of the Veeam Plug-in for HPE Morpheus VM Essentials and their respective worker build numbers. Version | Plug-In / Worker Build | Release Date ---|---|--- Veeam Plug-in for HPE Morpheus VM Essentials 2 Releases Veeam Plug-in for HPE Morpheus VM Essentials 2.0...

Most Common Issues with Salesforce Connected App in Veeam Data Cloud for Salesforce

Purpose This article documents the changes to Connected App usage in Veeam Data Cloud for Salesforce resulting from Salesforce's restriction of uninstalled connected apps, effective Autumn 2025. It provides guidance on authorization requirements, common connection errors, and necessary permission...

"Internal Server Error" in the Veeam ONE Web Client after upgrade to version 11a

Challenge When attempting to open the reports in the Veeam ONE Web Client, the following error message pops up and the Infrastructure objects are not listed in the reports scope: Solution Option 1: Upgrade to Veeam ONE 12 or higher This issue is fixed in Veeam ONE 12 and higher, to upgrade downlo...

"Backup performance data collection failure"

Challenge Veeam ONE raises the Backup performance data collection failure alarm. Example 1 - Performance data cannot be collected from the repository associated with Veeam Backup & Replication. Example 2 - Performance data cannot be collected from a Hyper-V host managed by Veeam Backup &...

Installer Error: "This installation cannot be updated automatically." or "Unable to proceed with the setup"

Challenge When attempting to update Veeam software, the following error occurs: This installation cannot be updated automatically. Please contact Veeam customer support for assistance with manual update. Alternatively, the following error occurs: An error has occurred: Unable to proceed with the...

Release Notes for Veeam ONE 8.0 Update 2

Challenge Release Notes for Veeam ONE 8.0 Update 2. Cause Please confirm you are running Veeam ONE 8 prior to installing this update. You can check this under Help | About in Veeam ONE Monitor Client, the build number should be 8.0.0.xxx. After upgrading, your version build will be 8.0.0.1669. Th...

How to restore vCenter Server without a vCenter Server

Challenge The vCenter Server is not available and the vCenter Server VM needs to be restored. Solution To restore the vCenter Server, you will need to add one of the individual ESXi hosts to Veeam Backup & Replication, allowing you to target that host directly to restore the vCenter VM. Possible...

Job Fails to Start Due to Timeout Caused by Desktop Heap Allocation Failure

Article Applicability The timeout error displayed in Veeam Backup & Replication can be caused by various factors. This article explicitly addresses a scenario where the Windows OS experiences a 'heap allocation' failure. Please note that the solution provided in this article is only applicable if...

VSS Errors Related to the 'NTDS' VSS Writer

Challenge This article discusses an error that occurs due to VSS and Veeam's Guest Processing technique for Domain Controllers. It is relevant to all backup jobs for both virtual and physical Domain Controllers. A job processing a Domain Controller with Application-Aware Processing fails with one...

Content-MD5 HTTP header is required for Put Object requests with Object Lock parameters

Challenge Jobs targeting an S3-Compatible repository fail with either of the following errors: Error: S3 error: Content-MD5 HTTP header is required for Put Object requests with Object Lock parameters Code: InvalidRequest Agent failed to process method S3 error: Checksum Type mismatch occurred,...

PostgreSQL and PgBouncer Sizing and Configuration Guide

Challenge Jobs or tasks in Veeam Backup for Microsoft 365 fail with the error: Error: EFCoreLogging: An error occurred using the connection to database 'cache2331ace3-eff1-4ebb-b328-0cb948b2f5c5' on server 'tcp://vb365.domain.tld:6432'. Cause These connection errors can occur in larger environmen...

Could not apply snapshot: Device has active dirty bitmaps

Challenge When the user attempts to use the Rollback function for a snapshot on a Proxmox Virtual Environment PVE Virtual Machine VM that is protected by Veeam Backup & Replication, the following error occurs: qemu-img: Could not apply snapshot '%%': Device has active dirty bitmaps Cause This err...

Using Veeam Agents with HPE VM Essentials

Article Aplicability This article was created before the release of the Veeam Plug-In for HPE Morpheus VM Essentials. Its content reflects an alternative solution that was available before the direct integration of HPE Morpheus VM Essentials management as a virtual environment in Veeam Backup &...