Automount is Disabled on VMware Backup Proxy

Challenge The Windows OS of a VMware Backup Proxy reports that automatic mounting of new volumes is disabled. Solution The automatic mounting of new volumes being disabled is an expected outcome for VMware Backup Proxies. As documented in the Veeam Backup & Replication User Guide: For Microsoft...

Unable to mount disk: unsupported disk type

Challenge When attempting to perform a Guest Files Windows Restore the operation fails with the following error: Unable to mount disk: unsupported disk type Solution It is critical that the Microsoft Windows File Recovery page in the user guide is reviewed to confirm restore compatibility. There...

SQL Server Fails with error VSSControl: -2147024809 Backup job failed. Discovery phase failed.

This KB provides information when SQL fails with this error due to a logical file path...

Error "Unable to communicate with the remote host, since it is disconnected." with replication or restore

Article Applicability The error, "Unable to communicate with the remote host, since it is disconnected. " may occur for many reasons, some more straightforward than others. This article is specifically related to a more obscure scenario where the destination ESXi host runs a vSphere version that...

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...

Exchange Logs Not Being Truncated

Challenge This KB provides troubleshooting advice for investigating an apparent Exchange log truncation issue. Cause Exchange truncation may not occur for the following reasons: The Backup Job is not configured to trigger truncation. The VSS operation occurring during the job is not notifying the...

JetError -1404, JET_errIndexNotFound, No such index

Challenge When trying to open a database in VEAD, you receive the following error message: JetError -1404, JETerrIndexNotFound, No such index Solution Log in to the domain controller from which you are trying to restore the database, run cmd as Administrator and run the following: 1. Type regsvr3...

Unable to retrieve next block transmission command when backing up to tape from a Linux repository

Challenge When backing up to tape from a Linux repository, the following error may appear: Unable to retrieve next block transmission command. Number of already processed blocks: number of blocks. The log file contains the following information: cli| WARN|Tape Default EOM Warning 2147483648!...

Veeam Backup File Encryption Support

Challenge There is a need to encrypt the backup files while they are sitting on storage. Solution Starting with Veeam Backup & Replication v8 data encryption is available, more information can be found here: https://helpcenter.veeam.com/docs/backup/vsphere/dataencryption.html More Information...

Failed to open VMDK. ESXi 5.5 and Veeam 7.0.0.764+

After updating Veeam or VMware such that a combination of ESXi 5.5 and Veeam 7.0.0.764 or higher exist within the environment, the jobs fail with error “Failed to open VMDK” and/or “Host not licensed...

WAN Accelerator Quick Reference

Purpose This article provides links to documentation regarding Veeam Backup & Replication WAN Acceleration. User Guide Documentation How WAN Acceleration Works WAN Accelerator System Requirements WAN Acceleration Section WAN Accelerator Sizing Adding WAN Accelerators Best Practices Documentation...

How To Export Windows Event Logs

Purpose When submitting a support case for technical assistance, it is sometimes necessary to upload relevant Windows event logs in addition to the Veeam logs. Event logs exported using default settings can be missing important information. This article describes three different methods of...

Tips for Advanced Scheduling

Purpose This article provides information about advanced scheduling techniques in Veeam Backup & Replication. Solution Scenario 1: Granular Scheduling This advanced scheduling technique allows for a job to be scheduled to run at different times each day. By configuring the job to run "Periodicall...

.net error on Veeam Backup & Replication Install

When installing Veeam Backup & Replication on a Windows 7 machine you get the following error: failed to execute .net assembly. Error code: 0x8013101B...

Setup is unable to proceed: use Windows Services snap-in to check if the Server service is running.

Challenge The Veeam Backup & Replication installer throws the error: Setup is unable to proceed: use Windows Services snap-in to check if the Server service is running. C:\ProgramData\Veeam\Setup\Temp\Catalog.log MSI s 90!AC 15:55:52:608: Doing action: VmaCheckServerSvcStatus Action start 15:55:5...

Cannot find VM in the backup file specified for seeding

Challenge A replication job with seeding enabled fails with any of the following errors: Failed to create processing task for VM Error: VM VM not found in backup for initial sync !Screenshot of Failed to create processing task for VM VM Error: VM \VM\ not found in backup for initial sync...

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,...

Hardware provider is missing in Veeam Backup and Replication user interface

Challenge Backups using a specific hardware provider do not work, and the provider is missing from the user interface. Cause During a Hyper-V host rescan, available VSS providers are enumerated via a VSS API query. Then, all VSS volumes for which those providers can be used are retrieved. In some...

A Duplicate Tape Library is shown in the UI and is offline

Challenge A Tape Library with user-created media pools is shown as "offline ", and a duplicate of the Tape Library, without media pools is shown online instead. This KB article applies only to versions of Veeam Backup & Replication prior to 9.0.x Cause This issue may occur when changing device...

Hyper-V Guest processing skipped (check guest OS VSS state and integration components version)

Challenge Guest VMs will fail to engage VSS when Application-Aware Processing is enabled, generating the error: Error Guest processing skipped check guest OS VSS state and integration components version System.Exception Solution Most Common Solution At the time this article was written in 2014,...

How to Seed a Backup Copy Job

Purpose This article provides references to documentation explaining how to manually seed a Backup Copy job with Veeam Backup & Replication. Solution Veeam Backup & Replication User Guide: Creating Seed for Backup Copy Job Veeam Backup & Replication User Guide: Backup Copy Job Mapping If this KB...

Unable to allocate processing resources

Challenge A job within Veeam Backup & Replication fails with an error that starts with: Unable to allocate processing resources. In the section below is a list of the most common permutations of this error. Troubleshooting Below are different endings to the error "Unable to allocate processing...

Release Information for Veeam Backup & Replication 7 Patch 3

More Recent Version Available Please find the latest version of Veeam Backup & Replication here: Veeam Downloads - Latest Version Challenge Veeam Backup & Replication Patch 3 Release Notes Cause Please confirm you are running version 7.0.0.690, 7.0.0.715, 7.0.0.764, 7.0.0.771 or 7.0.0.833 prior t...

Users and Roles: Account Setup and Permissions

Documentation Review the following documentation for more information: Veeam Backup & Replication Console - Roles and Users Veeam Backup & Replication Console - Permissions Veeam Backup Enterprise Manager - Accounts, Roles, and Delegated Restore Permissions If this KB article did not resolve your...

How to reinstall vSphere Web Client plug-in for Veeam Backup & Replication

Article Applicability This article is regarding the Local vSphere Client Plug-in only. Veeam Backup Enterprise Manager offers the following configurations of the vSphere Client plug-in: Local vSphere Client Plug-in -- For vSphere Client 7.0.0.x or earlier, the plug-in is installed locally on the...

Incorrect values in the properties of objects in SCOM console

Challenge The collection of performance and events works fine, but during investigation of CPU/RAM properties of Hosts, Virtual Machines etc. unexpected values are revealed. For example ESXi host has 345.9 GB of RAM, but the SCOM property field contains 3459 GB. Cause SCOM processes these values...

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...

Error: Object reference not set to an instance of an object after manually deleting a replica VM

Challenge You receive an error after manually deleting a replica VM. Cause The replication job is still mapped to the previous replica VM. An error is produced when Veeam attempts to access the invalid object. Solution Unchecking the Low Connection Bandwidth Enable replica seeding checkbox does n...

Virtual disk size is not a multiple of 1KB

Challenge Backup Copy job fails with the error: Error: Virtual disk size is not a multiple of 1KB. Copy Cause This most often occurs as a result of a P2V conversion. Solution Review the disk of the VM that failed and check for any disks which are not a whole number. This most often presents as a ...

Storage I/O Control (SIOC) and Veeam

Challenge Veeam will cause additional IOPS on the datastore of the source VM and a target VM, in a replication job potentially impacting other VMs in the same datastore. In some cases this may cause the performance of other neighboring VMs on the same datastore to decrease during this heavy I/O...

Hyper-V backup job fails to create shadow copy with default shadow storage limit

Challenge Backup or replication of a Hyper-V VM fails. In the Windows event logs on the Hyper-V host server, there is an error with ID 8193 from source VSS: Volume Shadow Copy Service error: Unexpected error calling routine Cannot find anymore diff area candidates for volume...

Installation Fails with Patched Database

Article Applicability The issue documented on this KB is only relevant to Veeam Backup & Replication versions prior to v10. Starting with v10, a different error occurs for the same reason and is documented on KB4204. Challenge When installing Veeam Backup & Replication, selecting an existing...

Hyper-V VSS snapshot import delay

Challenge If you backup your VMs using Dell Equallogic hardware VSS provider in some cases datavhd/vhdx that we read from VSS snapshot could be inconsistent Cause During Hyper-V backup, we execute VSS API call DoSnapshotSet, as soon as it completes, we execute ImportSnapshot VSS API call, without...

Veeam ONE v7 R2 update

Challenge Release Notes for Veeam ONE v7 R2 update Cause Please confirm you are running version 7.0.0.876 prior to installing this update. You can check this under Help | About in Veeam ONE Monitor Client. After upgrading, your build will be version 7.0.0.919. This update should be applied to...

Tape library and drives are shown as separate devices

Challenge Tape library and drives are shown as separate devices in console or loading tape into TapeDrive0 moves the tape into TapeDrive1 etc. Shown here, the Tape Library has no Tape Drive listed Shown here, the Tape Drive is separate from the Tape Library. Cause The tape library is not reportin...

Unexpected Latency Values Shown in Veeam MP

Challenge Veeam MP alerts about unreasonably high values for highest latency on VMs see screenshot below: Cause The same latency values can be observed in VI Client performance charts under disk/real-time during snapshot deletion. The values may also be negative. Solution This is a known behavior...

Missing Data in SCOM Top Dashboards

Challenge While Veeam Collector works fine, and performance data are showing up in SCOM performance views, the Top dashboards are empty. Top Clusters Top Datastores Top Hosts Top Virtual Machines Cause The Top dashboards are populated with data from the Data Warehouse database, unlike the...

Recommended hotfixes for Hyper-V servers

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

Unexpected Highest Latency Values Shown in Veeam ONE

Challenge Veeam ONE indicates unreasonably high values for highest latency on VMs see screenshot below: Cause The same latency values can be observed in VI Client performance charts under disk/real-time during snapshot deletion. The values may also be negative. Solution This is a known behavior o...

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 Collect Logs for Veeam Backup & Replication

Purpose This article documents how to collect logs from Veeam Backup & Replication and additional information to include when submitting a Veeam Support case for technical assistance. Additional Logging Veeam Backup & Replication interoperates with other Veeam products. Please refer to the...

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...

IBM Tape Library Not Listed in Device Manager under “Medium Changers”

Challenge IBM System Storage Tape Library does not appear under the heading Medium Changers in the Device Manager, preventing it from working with Veeam Backup & Replication. Cause The issue occurs when the Library Mode is set to Sequential within the IBM System Storage Tape Library configuration...

vCenter Connection Failover Requirements for SCOM Action Account

Challenge Although everything is set up according to the vCenter Connection Failover manual, the script fails. As a result, the following event appears in the Operations Manager Event Log on Veeam Virtualizations Extension Server VES with id: 995. vCenterFailover.ps1 : Error: Cannot open...

WAN Accelerator Fails to Install

Challenge When creating a new WAN Accelerator or reconfiguring an existing WAN Accelerator, the installation of the WAN Accelerator package fails with the error: Error Installing package WAN Accelerator Error: Error 1920.Service Veeam WAN Accelerator Service VeeamWANSvc failed to start. Verify...

There Is Not Enough Space on the Disk

Challenge A job or task reports the error: There is not enough space on the disk Cause This error is relayed by Veeam Backup & Replication when the underlying system reports the error while attempting to write a file. More often than not, this error quite literally means the disk has insufficient...

SureBackup fails with “Virtual machine has 4,096 megabytes of memory, which is larger than the maximum 1,024 megabytes supported by the datastore”

Challenge A SureBackup job fails to boot a VM in the application group with the following error in a vSphere 5.5 environment: 10/16/2013 2:13:31 PM Getting virtual lab configuration 10/16/2013 2:14:41 PM Starting virtual lab routing engine 10/16/2013 2:15:24 PM DC1 - Publishing 10/16/2013 2:15:30...

How to Change the Settings Related to Veeam Backup & Replication Log Files

Purpose This article documents how to change settings regarding where log files are stored, how large an individual log file may become, and how many generations of log files are retained. Solution Log Files Stored on the Veeam Backup Server The following registry values must be created on the...

Backup Copy job report shows inflated traffic saving in the notification email

Challenge After installing Patch 1 for Veeam v7, the enhanced Backup Copy job report shows inflated traffic saving in the notification email. Cause Traffic savings ratio is incorrectly calculated off total VM size, rather than the size of changed data. Solution Please download and apply the...