Unexpected Increase in Exchange Incremental Data Processed By Veeam Backup for Microsoft 365

May 2025 Update This article has been updated with new information regarding the February 2025 occurrence and the results of the subsequent investigation. Issue Summary First Occurrence -- August 7 - August 21, 2023 Some customers using Veeam Backup for Microsoft 365 to back up Microsoft 365...

Veeam.Archiver.Service terminates due to 'System.OutOfMemoryException' after updating to Veeam Backup for Microsoft 365 7.0.0.3968

Challenge Veeam.Archiver.Service consumes all available virtual memory and then terminates. The issue can be confirmed with the following Windows Events System log: The Veeam Backup for Microsoft 365 Service service terminated unexpectedly. It has done this 1 times. The following corrective actio...

FC-Only Nimble Array Snapshot Failures in Veeam Backup & Replication P20230718

Challenge When using Veeam Backup & Replication 12 P20230718, rescan, backup, and restore operations may fail when the Nimble array is configured to only use Fibre Channel FC protocol. The request could not be understood by the server. Unexpected argument 'multiinitiator'. Solution A private fix ...

SSH Connection Failure to Linux Machine Requiring Multiple Sequential AuthenticationMethods

Challenge Connections to a Linux machine fail with the following errors: Authentication was partially successful, but server requires additional authentication with: 'password'. No suitable authentication method is supported. Supported methods: 'password'. Some tasks may not display these errors...

Possible Impacts of Removing the Machine Where Veeam Is Installed From a Domain

Purpose This article documents the most common side-effects customers may experience when removing the machine where Veeam Backup & Replication is installed from a domain. Solution Not all of the issues listed below may be experienced. These are all heavily dependent on the configuration of the...

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...

Granular Log Collection Guide for SOBR Capacity/Archive Tier Issues

Purpose This article documents an advanced granular log collection method designed to minimize the log bundle size when submitting Veeam Support cases for issues related to the capacity tier or archive tier of a Scale-Out Backup Repository. The standard method of collecting logs for these cases i...

Build Numbers and Versions of Veeam Plug-ins for Enterprise Applications

Plug-In Download The latest version of all Plug-Ins for Enterprise Applications can be found at the bottom of the My Products page within the My Portal, in the Application Plug-Ins under Additional downloads. This table lists the Veeam Plug-ins for Enterprise Applications organized by their build...

Veeam Agent for Microsoft Windows (Windows)

Binary data veeamagentformicrosoftwindowsinstalled.nbin...

Veeam Backup for Cloud Solutions Potential Data Loss

Challenge If, between the runs of a backup policy for a VM, a virtual disk is removed and added back to that same VM, data blocks belonging to that disk may be deleted from the backups during the retention process. This can lead to a data loss scenario. Impacted Product Versions: Veeam Backup for...

Veeam Cloud Service Provider Case Administrator FAQ

Intended Audience This article contains information that is relevant to Veeam Cloud Service Providers. If you are not a Veeam Cloud Service Provider, please review the following: KB2211: My Account Portal - Role Management FAQ Case Administrator Assignment Restrictions Attempting to assign a case...

Backup Fails With the Error “PKCS12 (PFX)”

Challenge A backup job fails with the error: PKCS12 PFX without a supplied password has exceeded maximum allowed iterations. See https://go.microsoft.com/fwlink/?linkid=2233907 for more information The issue may also manifest as a backup job being stuck in the queued state. In this specific case,...

Impact of tmux on Veeam Interactions With Linux OS

Purpose This article documents a known incompatibility between Veeam applications that initiate SSH connections to remote Linux machines and those Linux machines being configured to have tmux autorun when users connect. Connection Examples As stated, this issue affects all interactions wherein a...

Veeam ONE Database Calculator for Veeam Backup for Microsoft 365 Monitoring

New Interactive Calculator An updated interactive calculator is now available to replace the legacy Excel file included with this article. Veeam ONE Calculator Solution Summary This Veeam ONE database sizing calculator will help estimate the database size required to retain historical data when...

Build Numbers and Versions of Veeam Service Provider Console

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

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...

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 &...

Veeam Agent for Microsoft Windows Update Fails with "The digital signature of the downloaded update file is invalid"

Challenge The integrated Veeam Agent for Microsoft Windows Update check displays the error: The digital signature of the downloaded update file is invalid. Most likely, it got corrupted. Please, download the update again. An alternate message is a warning stating: Version is available but cannot ...

WDAC Supplemental Policy for Veeam Backup & Replication Components on Azure Local

Azure Local is the new name for Azure Stack HCI Azure Stack HCI is now considered part of Azure Local. Learn more about this rename in the Microsoft Documentation: Renaming Azure Stack HCI to Azure Local. Veeam Backup & Replication Version Requirement The solution documented in this article...

How to Set Custom VLAN ID in Recovery Media

Purpose This article documents how to configure the Veeam Agent for Microsoft Windows Recovery Media to use a specific VLAN ID. Use Case: You need to access a repository located in a different VLAN than the original machine was using. Solution Because the Recovery Media is based on WinPE, which...