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...

Release Information for Veeam Backup & Replication 7 R2 Update

More Recent Version Available Please find the latest version of Veeam Backup & Replication here: Veeam Downloads - Latest Version Challenge Release Notes for Veeam Backup & Replication 7.0 R2а update Cause Please confirm you are running version 7.0.0.690, 7.0.0.715 or 7.0.0.764 prior to installin...

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...

Number of Cores Incorrectly Detected - Server 2003/XP

Challenge When adding a Server 2003 or Windows XP machine to Veeam, the true number of cores is not detected properly. Instead Veeam Backup & Replication only detects the number of Sockets. Example: A virtual machine with Server 2003, having a configuration of 2 Sockets and 4 Cores, is added to...

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...

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...

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...

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...

Job Planning

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

Alerts are not closed automatically in SCOM

This article addresses troubleshooting for the following problem: "Alerts are not closed automatically in SCOM."...

Unable to access the virtual machine configuration: Invalid datastore path

Challenge SureBackup/Instant Recovery session fails with the error: Unable to access the virtual machine configuration: Invalid datastore path Log Files list: Error Failed to register VM name 'XYZaf5107a9120c43e687c33c3d6f4c073c', is template 'False' System.Exception Error Unable to access the...

Failed to perform Veeam VSS freeze: guest OS 'otherGuest' is not supported

When backing up Windows server, encounter the error "Failed to perform Veeam VSS freeze: guest OS 'otherGuest' is not supported."...

Appliance Mode - Failed to hot-add SCSI targets: Failed to power on scsi

Appliance Mode - Failed to hot-add SCSI targets: Failed to power on scsi...

No data or incorrect data arrives into Operations Manager from the vCenter Server due to the vCenter Server statistics interval

Challenge No data or incorrect data arrives into Operations Manager from the vCenter Server due to the impact of vCenter Server statistics interval on the Veeam Collector operation. Cause This may happen due to various reasons, in particular, due to incorrect settings of the vCenter Server...

Hardware Status Differs in vCenter Server and Veeam ONE

Challenge One of Veeam ONE's monitoring features is monitoring and alerting on host hardware status changes. These alerts are good to know in case hosts in your environment have hardware issues, the issue will be notified in the alert, and the severity of the issue by VMware's color scale Yellow ...

Unstructured Data Backup from Google Cloud Storage fails with a Bad Request error

Challenge An Unstructured Data Backup of data from Google Cloud Storage added to Veeam Backup & Replication as an S3-Compatible Object Storage data source fails with the following error: Failed to perform object backup Error: Agent: Failed to process method NasMaster.ExecuteBackupProcessor: Faile...

External Client App (ECA) for Veeam Data Cloud — Adapting to New Salesforce Security Requirements

Support Statement Summary of Changes to Salesforce Security Protocols Salesforce has introduced new security protocols for third-party applications accessing Salesforce organizations. This change affects all third-party products that integrate with Salesforce, requiring those vendors to transitio...

Veeam Agent for Microsoft Windows Service Fails to Start After Upgrading .NET Components

Challenge After upgrading .NET components on a machine where Veeam Agent for Microsoft Windows is installed, the "Veeam Agent for Microsoft Windows" service fails to start. Windows could not start the Veeam Agent for Microsoft Windows service on Local Computer. Error 1053: The service did not...

Failed to create a restore point: PostgreSQL database operation failed multiple times with transient error.

Challenge After upgrading to Veeam Backup for Microsoft 365 8.2 or 8.3, jobs fail with the erorr: Failed to create a restore point: PostgreSQL database operation failed multiple times with transient error. Cause This issue occurs because various one-time PostgreSQL queries that the software...

Release Information for Veeam ONE 13.0.1 RTM Patch 0

Update Applicability This "Patch 0" update for Veeam ONE 13.0.1 is strictly intended for deployments using the RTM release build 13.0.1.5860. If Veeam ONE 13.0.1 GA build 13.0.1.5924 is installed, this update can be ignored as it is not needed. All resolved issues listed in this article were foun...

Files with Microsoft Purview Sensitivity Labels Are Not Accessible After Being Restored

Challenge After restoring a file that was encrypted with a Microsoft Purview Sensitivity Label, attempting to open it results in an error similar to: Word was unable to read this document. It may be corrupt. Try one or more of the following: Open and Repair the file. Open the file with the Text...

Support Statement - Veeam Software Appliance Customizations

Support Statement Installing additional Linux packages, third-party applications, or changing OS settings other than those that can be controlled via the Veeam Host Management Console on the Veeam Appliances is not supported. Veeam Customer Support cannot provide technical support for appliances...

Release Information for Veeam ONE 13.0.1 Patch 1

Veeam ONE 13 Releases 13.0.2.6723 2026-05-27 What's New New Features and Improvements Suspicious Incremental Backup Size Alarm -- Extended Platform Support The Suspicious Incremental Backup Size alarm now covers all platforms supported in Veeam ONE v13, including Proxmox VE, oVirt KVM Oracle Linu...

How to Configure NFSv4 on IBM AIX

Purpose This article documents steps to enable NFSv4 on IBM AIX to enable backup mount support for Veeam Agent for IBM AIX introduced with Veeam Backup & Replication 13. Solution Part 1: Configure the Host Resolution 1. Open the /etc/netsvc.conf file. 2. Ensure that the hosts parameter is set to...

"SharePoint Server backup is not configured for this organization."

Challenge A SharePoint backup job in Veeam Data Cloud for Microsoft 365 fails with the following error: SharePoint Server backup is not configured for this organization. Note: This error occurs despite SharePoint being correctly configured in Microsoft 365. Cause The issue occurs for specific...

Impact of Azure AD Graph Deprecation on Veeam Backup for Microsoft Azure

Challenge Data protection of Azure services may fail using any version of Veeam Backup for Microsoft Azure below v6 build number 6.0.0.234. Cause Starting February 1, 2025, Microsoft has retired Azure AD Graph. As a result, any application relying on Azure AD Graph will be unable to make requests...

SharePoint and OneDrive Items May Not Be Displayed

Article Applicability The solution provided in this article requires Veeam Backup for Microsoft 365 8.1 or higher. The issue discussed in this article only occurs under particular circumstances. Review the Cause section closely. This article is marked as related to Veeam Backup for Microsoft 365 ...

Veeam Product Upgrade Guides

Upgrade Guides This article provides a list with links to the upgrade guides available within each product's user guide. Veeam Data Platform Veeam Backup & Replication Veeam ONE Veeam Recovery Orchestrator Veeam Plug-ins for Enterprise Applications Veeam Plug-in for SAP HANA Veeam Plug-in for...

Granular sudo Permissions for Management of Veeam Agent for Oracle Solaris

Purpose This article provides examples of granular 'sudo' configuration for the Linux account that will be used by Veeam Backup & Replication when managing Veeam Agent for Oracle Solaris deployments with a Protection Group. Solution The following granular sudo permissions were tested with Veeam...

Troubleshooting apiservices Unavailability Due to Failed Discovery

Article Applicability This article is relevant for environments where Cilium CNI is in use. If the errors or behavior described below occur in an environment where Cilium CNI is not in use, please create a support case. Challenge In Kubernetes clusters that use Cilium for CNI Container Network...

Veeam Kasten for Kubernetes Instant Recovery with Veeam Backup & Replication vPower NFS datastore

Purpose K10 Instant Recovery uses the Veeam Backup and Replication vPower NFS datastore to provide vSphere First Class Disks for storage. This feature enables "instant" recovery of workloads with Kubernetes. Solution The vPower NFS datastore is a fully functional datastore in the vSphere cluster...

Import Job Fails with "No kopia manifests found in the repository"

Challenge Import jobs fail with the error: No kopia manifests found in the repository Full error: "cause": "file": "kasten.io/k10/kio/collections/kopia/operations.go:144", "function": "kasten.io/k10/kio/collections/kopia.GetLatestSnapshot", "linenumber": 144, "message": "No kopia...

Clone Job Fails Due to Security Context Constraints (SCC) Issue

Challenge Cloned-restore jobs time out and eventually fail because an application's security context provides permissions in the original application namespace. This results in the application's pod being in a non-running state. Example: Namespace = quay-enterprise SCC during deployment = anyuid...

How to Configure an Air-Gapped Veeam Kasten for Kubernetes Deployment Using JFrog Artifactory

Purpose This article provides a step-by-step approach to configuring a JFrog Artifactory server and installing Veeam Kasten for Kubernetes. This allows for creating an air-gapped installation using a private container registry to install Veeam Kasten for Kubernetes. While this can always be done...

PVC Export Fails Due to Timeout

Challenge The export action will fail if Veeam Kasten for Kubernetes takes more than 45 minutes to complete the job. Checking the export action details, the message below is the clue where Veeam Kasten for Kubernetes hits the timeout for the operation waitWithBackoffwithRetries with the duration...

Upgrading Veeam Kasten for Kubernetes Fails With Parse Error

Challenge When upgrading to Veeam Kasten for Kubernetes 6.5.3 or higher the upgrade fails with: parse error at k10/templates/v0services.yaml:128: function "continue" not defined Cause This issue is related to the Helm binary version that is installed. Solution To resolve this issue, download the...

Job For .local Domain Fails When Using Ubuntu-base VMware Backup Proxy

Challenge Backup of VMware VMs fails when using an Ubuntu-based Linux VMware Proxy, and the VMware environment is added to Veeam with an FQDN ending in .local e.g., esxi.somedomain.local. In the Task Log, errors related to NFC connectivity can be found: Processing Error: NFC storage connection is...

New Readiness Check - Multiple Veeam Backup Servers Are Required by One Recovery Plan

Article Applicability This article documents a new Plan Readiness Check parameter in Veeam Recovery Orchestrator 7.1. Purpose This article documents a new addition to the Plan Readiness Check in Veeam Recovery Orchestrator VRO v7.1. This new check will be part of the Plan Readiness Check for all...

Release History for Veeam ONE 12.1

Veeam ONE 12.1 Builds 12.1.0.3208 Release Information Release Notes What's New Download Information Product Upgrade Order As documented in the Veeam ONE Release Notes: If you have Veeam Backup & Replication servers connected to Veeam ONE, upgrade Veeam ONE first; Veeam Backup & Replication must b...

Full Restore Point Generated by Veeam Agent for Microsoft Windows Cluster Backup Is Larger Than Source Cluster

Challenge The Backup Job for a Failover Cluster, or its associated Backup Copy Job, generates full .vbk restore points that are larger than the source Failover Cluster. Cause During the cluster backup, Veeam Agent for Microsoft Windows will deduplicate the blocks within shared disks. However, if...

Release Information for Veeam Backup for Red Hat Virtualization 3b

Requirements The Veeam Backup for Red Hat Virtualization 3b Plug-In may be used as part of a new deployment or to upgrade an existing Veeam Backup for Red Hat Virtualization Plug-In running versions 2.x - 3.x. After installing the Veeam Backup for Red Hat Virtualization 3b Plug-In, the...

The Console Does Not Appear After Being Launched

Challenge After launching the Veeam Backup & Replication Console, the splash screen appears, and the application is shown in the taskbar, but the Console does not appear, and the mouseover preview is blank. Cause The Console's window position is off the edge of the screen. When the Veeam Backup &...