SharePoint Online and OneDrive for Business Backup Jobs Fail with (403) Forbidden Warning Message

Challenge SharePoint Online or OneDrive for Business backup jobs fail with the following message: Processing site https://site.sharepoint.com/sites/111/subsite finished with warning: Failed to backup item version: //1024/Shared Documents/, version: 1.0, The remote server returned an error: 403...

Backup jobs targeted at Linux backup repository fail after enabling FIPS 140-2 mode on repository server

Challenge After enabling FIPS mode on a Linux repository server, backup jobs fail; log review reveals that Veeam Backup & Replication is unable to make an SSH connection to the repository: 31.08.2019 00:00:00 Warning Failed to create SSH connection to host: '', port: 22, user: '', elevation to...

Incorrect Replica Counters in Monthly Cloud Connect License Usage Report

Challenge Automated monthly license usage reports generated by Veeam Cloud Connect display an unexpected number of replicated VMs and licensed instances. At the same time, Get-VBRCloudTenant -Name "TenantName" PowerShell cmdlet returns proper numbers. Cause Miscalculations are caused by a bug in...

Veeam Backup & Replication upgrade fails with an error "Database version downgrade detected ... Reboot and restart the setup"

Challenge The upgrade to Veeam Backup & Replication U4 fails with "Database version downgrade detected ... Reboot and restart the setup". You may find following error in the C:\ProgramData\Veeam\Setup\Temp\BackupSrvLog.log: Veeam SRV: 31.01.2019 11:39:43: VEEAM Database version has been increment...

Veeam ONE compatibility patch for Veeam Backup & Replication 9.5 Update 4

Challenge After upgrading Veeam Backup & Replication servers to version 9.5 Update 4, Veeam Cloud Connect monitoring and reporting in Veeam ONE 9.5 Update 3 will stop working. Cause This issue is caused by incompatibility of Veeam Backup & Replication 9.5 Update 4 and Veeam ONE 9.5 Update 3. To...

"Failed to detach SCSI lun" errors in vSphere after finishing Instant Recovery or File-level restore from storage snapshots

Challenge You might see "Failed to detach SCSI lun" errors in vSphere during the unexport phase when restoring items file-level restore from storage snapshot or doing an Instant Recovery from storage snapshot because of certain VMware behaviour. Both types of the restores include a step when...

Re-IP rules do not work in Veeam Availability Orchestrator lab test

Challenge In rare cases, when you perform a failover, Re-IP rules are applying correctly, however, when you perform a lab test these rules would not be applied. Solution To resolve that: 1. Make sure that no plans are currently running 2. Open Veeam Availability Orchestrator UI Configuration VAO...

Notification Emails From Veeam Backup for Microsoft 365 Are Sent in an Unexpected Language

Challenge Email notifications sent by Veeam Backup for Microsoft 365 unexpectedly contain Chinese characters. Cause The issue is caused by an encoding conflict. By default, Veeam Backup for Microsoft 365 uses UTF-16 character encoding, and the problem appears under the following circumstances: Us...

Antivirus Exclusions for Veeam Service Provider Console

Purpose This article documents antivirus exclusions that may be created to reduce the impact that antivirus software has on the functionality of Veeam Service Provider Console. These antivirus exclusions may be applied to the Windows built-in antivirus or third-party antivirus software. Note:...

Quantum storage devices may have a known Linux bug

Challenge To identify if a known linux bug is the cause for errors on a backup repository. Cause You will see a job fail with "unable to mkdir /var/log/sudo-io : File exists", this is caused by a bug in some versions of the sudo application. Solution Some quantum storage device's operating system...

VeeamZIP licensing VMs in Full version of Veeam

Challenge VeeamZIP began using a license up in paid versions after 9.5.0.1536. Cause This was expected behavior, but the decision has been made to change this behavior in order to allow users to back up VMs with VeeamZIP without using a license. Solution This will be fully changed in future...

Failed to open VM attachment

Challenge Veeam ONE generates "Failed to open VM attachment" alarm. Cause Veeam ONE triggers " Failed to open VM attachment" alarm when the following Windows events are registered on the Hyper-V host: 12290 Microsoft-Windows-Hyper-V-Worker 12290 Microsoft-Windows-Hyper-V-SynthStor 12290...

vCenter Server Appliance - Backup/Restore Recommendations

Native File-Based Backup and Restore Recommended vCenter Server Appliance Data Integrity Best Practices recommends using the native file-based backup and restore operations to protect the vCenter Server Appliance. Review: VMware vSphere User Guide: Considerations and Limitations for File-Based...

Expired license for Veeam Agent causes scheduled jobs to fail

Challenge Although the license information screen shows that the license for Veeam Backup & Replication is valid, scheduled jobs are failing with the following error: Error Your trial license has expired Cause If Veeam Agent for Microsoft Windows or Veeam Agent for Linux running on a trial licens...

Veeam ONE Import Report Packs

Purpose This article documents how to manually install the Report Packs after manual Veeam ONE database creation KB2312. Solution 1. Mount the Veeam ONE installer ISO 2. Navigate to the \Reporter folder on the Veeam ONE ISO 3. Copy VeeamONE.Reporter.Server.x64.msi to a convenient location on the...

Notification emails are not sent for backup jobs

Notification emails are not sent for backup jobs...

Microsoft Exchange logs are not being truncated in Veeam Backup and Replication 9.5

Challenge After upgrade to version 9.5.0.711 Microsoft Exchange logs no longer get truncated. In the Windows Application event logs you might get an error with an event ID 2034. Cause This is a known issue in build 9.5.0.711. If you disable Microsoft SQL logs truncation in Job properties then...

Veeam VM Migrator Tool

Unsupported Tool This Veeam-developed tool is provided as a courtesy and is not supported by Veeam Technical Support. If any issues arise during the usage of this tool, customers are advised to restore from a configuration backup to rever the Veeam Backup & Replication configuration to the last...

Console Error - Failed to connect to Veeam Backup & Replication Server

Challenge When attempting to connect to the Veeam Backup & Replication server using the console, the connection fails with one of the following errors: Failed to connect to the Veeam Backup & Replication server: No connection could be made because the target machine actively refused it :9392 Fail...

Release Notes for Veeam ONE 9.0 Update 1

Challenge Release Notes for Veeam ONE 9.0 Update 1 Cause Please confirm you are running Veeam ONE 9 prior to installing this update. You can check this under Help | About in Veeam ONE Monitor Client, the build number should be 9.0.0.xxx. After upgrading, your version build will be 9.0.0.2088. Thi...

Script execution on Linux target fails with “Permission Denied” even when executed as root.

Challenge When interacting with Linux servers, Veeam Backup & Replication may encounter a "Permission Denied" error during script execution Pre-freeze, post-thaw, and repository data mover agent scripts, even when the account being used is the root user. Cause All script files are uploaded to and...

How to Change the Oracle Archive Log File Location During Application-Aware Backup

Purpose This article explains how to change the Oracle Archive log file location used during Application-Aware Backup. Note: These settings only affect the log file location for Application-Aware Backup operations. Solution Linux-based Oracle Server: In the location where the Veeam agent starts, ...

Veeam Backup & Replication 9.0 Day 0 Update

Challenge This update is provided to enable upgrading existing installations of Veeam Backup & Replication 9.0 partner preview build 9.0.0.773 to generally available version of Veeam Backup & Replication 9.0 build 9.0.0.902. This update addresses a number of issues reported by our partners on the...

Veeam Backup & Replication Upgrade Paths

Tenants of Veeam Cloud Service Providers If your Veeam Backup & Replication installation is connected to a Veeam Cloud Service Provider, contact your Service Provider before upgrading to ensure that the intended upgrade will not break compatibility. A tenant cannot be on a newer version of Veeam...

An attempt to access data before the beginning-of-medium marker failed

Challenge During a tape related process in Veeam Backup & Replication the error "An attempt to access data before the beginning-of-medium marker failed" is thrown. Cause The most common cause of this is faulty tape. Solution If there is no content on the tape try erasing it, if the issue persists...

“After this job” (Daisy Chain) behavior change in Veeam Backup & Replication v8

This article documents the behavioral change made to the “After this job” function in Veeam Backup & Replication v8...

Veeam ONE Reporter\Business View installation fails

Challenge Veeam ONE installation\upgrade fails on the Reporter\Business View site deployment step. Cause Antivirus software may prevent applications from making changes to IIS, which is used by Veeam Reporter and Business View components to deploy their sites. Solution Disable antivirus software ...

Veeam Explorer for Microsoft SQL Server displays no content

Challenge When performing a SQL Item Restore, Veeam Explorer for Microsoft SQL Server launches successfully, but no content is displayed. The following is an example of what should be seen when the restore is working properly: Cause The account used to perform Application-Aware Image Processing f...

Reverse Incremental – Animation of Method and Retention

Purpose This article is intended to document how Reversed Incremental works, and how its retention is enforced. Reverse Incremental Backup Method For information regarding this Backup Method please review the user guide. Reverse Incremental Restore Point Creation The following is an animation...

Storage vMotion of Instant Recovery fails with “The method is disabled by ‘’”

Challenge When attempting to migrate an Instant Recovery VM to a production datastore using VMware Storage vMotion, the following error occurs: The method is disabled by 'vm-' Call 'VirtualMachine.Relocate' for object 'vmname' on vCenter Server 'vCenterName' failed. Solution To correct this issue...

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...

Cannot uninstall Veeam MP because Microsoft.SystemCenter.SecureReferenceOverride MP is dependent

Challenge During an attempt to uninstall Veeam Management Pack for Microsoft System Center a message appears stating that Microsoft.SystemCenter.SecureReferenceOverride MP is dependent on Veeam Base Discovery MP: Cause The Microsoft.SystemCenter.SecureReferenceOverride contains information...

SQL Log Files (LDF) Not Smaller After Truncation

Challenge After Veeam Backup & Replication or Veeam Agent for Microsoft Windows successfully truncates a SQL Server Database with Application-Aware Processing enabled, the SQL Log File .ldf does not become smaller. Cause This is due to the fact that the LDF file itself is a container, when...

Web Client Plug-in error: “invalid Single Sign-On token”

Challenge When a new user of the vSphere web client attempts to access the Veeam Web Client Plug-in, they encounter the following error: Server error: Failed to login to Veeam Backup Enterprise Manager. Login failed due to invalid Single Sign-On token Cause To successfully obtain statistics from...

Recommended hotfixes for Hyper-V servers

Below are the recommended hotfixes and patches for Microsoft Hyper-V Servers...

Veeam Backup & Replication event set for Kaseya

The Kaseya plug-in for Veeam Backup & Replication was discontinued in 2019 and is no longer available nor supported by Veeam. Challenge Monitoring Veeam Backup & Replication activity through Kaseya. Solution To monitor Veeam Backup & Replication please confirm you are running version 9.0. You can...

Prevent Veeam from locking tape drives

Challenge Veeam periodically rescans the tape drives. This locks the drives and prevents other tape software from writing to them. Cause The refresh rate on the automatic rescan is too frequent if using third party tape backup software. Solution The registry keys below prevent Veeam Backup &...

Excluded VM Disk is Still Snapshotted

Article Applicability This article is Veeam Backup & Replication version agnostic as it relates to the behavior of snapshots and checkpoints within the hypervisor environment. Challenge Disks of a VM being backed up by Veeam Backup & Replication are snapshotted even though they were excluded from...

Veeam VMware Collector service stops

Challenge Veeam VMware Collector service stops running regularly, the logs show that a stop call has been initiated. The vmspi.log contains the following entry: NOTFY Signal: shutting down: 0-LS LS Shutdown invoked. There are also "Info" events ID 7036 in the Windows System Event log with the...

Patch 3 Release Notes for Veeam Backup & Replication 6.5

More Recent Version Available Please find the latest version of Veeam Backup & Replication here: Veeam Downloads - Latest Version Challenge These are the issues resolved by the Patch 3 for Veeam Backup version 6.5.0.106 / 6.5.0.109 / 6.5.0.128. This patch is cumulative and contains fixes from Pat...

Limitation on number of EDBs mounted in Veeam Explorer for Exchange

Challenge The number of databases that can be mounted in Veeam Explorer for Exchange at a time is currently limited to 15. Solution If the limit has been reached, you will not be able to mount new databases. You can manually remove unnecessary mailbox stores in Veeam Explorer for Exchange and the...

Patch 1 Release Notes for Veeam Backup & Replication 6.5

More Recent Version Available Please find the latest version of Veeam Backup & Replication here: Veeam Downloads - Latest Version Challenge These are the issues resolved by the Patch 1 for Veeam Backup version 6.5.0.109. All patches are cumulative so each below fix is contained in this patch. Cau...

Monitoring vSphere 5.1 and 5.5 with Veeam MP/SPI 5.7

Challenge If you connect to vCenter Server 5.1 or 5.5, Veeam MP/SPI 5.7 will not collect some data, including hardware sensor metrics and vCenter-specific events and properties that were introduced by VMware since VMware vSphere 4.0. vCenter events and properties that were introduced before VMwar...

VM Loses Connection During Snapshot Removal

Challenge During the snapshot removal step of a Veeam Backup & Replication task, the source vSphere VM loses connectivity temporarily. Cause Veeam does not remove the snapshot itself; Veeam sends an API call to the vSphere environment to have the action performed. The snapshot removal process...

"VM MAC address conflict" and "VM instance UUID conflict" alarms

Challenge During replication jobs, Veeam ONE triggers the VM MAC address conflict and VM instance UUID conflict alarms. Cause These alarms occur when Veeam ONE detects the following events within the vSphere Environment: VmStaticMacConflictEvent VmMacConflictEvent VmInstanceUuidConflictEvent Thes...

Unknown network: not VMNetwork neither DVS

Challenge After you install or upgrade to Veeam Backup & Replication v6, some replication jobs fail with the following error: Unknown network: not VMNetwork neither DVS The issue persists if the job is created from scratch. Cause The error typically occurs because the source .vmx file contains a...

How to setup SAN access for use with Veeam Backup & Replication.

Purpose This article documents how to set up Direct SAN Access for use with Veeam Backup & Replication. The Direct SAN access transport mode is recommended for VMs whose disks are located on shared VMFS SAN LUNs that are connected to ESXi hosts over FC, FCoE, iSCSI, and on shared SAS storage. In...

SureBackup Performance Considerations

Purpose This article provides advice and information on understanding and improving SureBackup performance. Solution SureBackup Performance Considerations The Repository where the backup files are stored, and the Mount Server used by that Repository, should be in the same data center as the ESXi...

How to change URL in Enterprise Manager notification email

Purpose This article documents how to change the URL listed in the Veeam Backup Enterprise Manager notification email. Example of Backup Enterprise Manager Notification Solution Back Up Database Before Making Changes Before making changes to the VeeamBackupReporting database, create a backup of t...

Job Planning

To ensure sufficient use of resources and faster job performance, it is important to plan your backup, replication and copying jobs...