Issue with Hyper-V Reports in MP builds 7.0.0.1911 and 7.0.0.1913

Challenge The following Hyper-V reports show no performance data: Performance Forecast for Hyper-V Clusters Performance Forecast for Hyper-V Storage Host Failure Modelling What-If VM Deployment Planning model existing VMs What-If VM Deployment Planning manual resource entry Virtual Machines...

Slow replication when target proxy uses Virtual Appliance (HotAdd) mode

Challenge Incremental replication throughput is slow when target proxy uses Virtual Appliance transport mode HotAdd. Cause This issue is caused by VMware's limitation. Writing to VM snapshot in hotadd mode may cause high I/O load on the target datastore and result in latency spikes and slow...

Misconfigured RPC Settings cause Backup Job to fail with "Failed to prepare guest for hot backup"

Article Applicability This KB article is specific to a scenario where Dynamic RPC ports have been customized within the registry. That customization then causes the particular error Code: 87. The primary error in the UI, "Failed to prepare guest for hot backup," has many causes, and this article...

vCloud jobs are not shown in SCOM views of Backup jobs

Challenge In Backup Job views under SCOM Monitoring, all backup jobs are discovered by Veeam Management Pack for Veeam Backup except for vCloud vCD backup jobs. Cause The behavior is caused by a known issue and fixed in Veeam Management Pack v7. Solution Upgrade to most recent version. More...

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...

Event ID 10378 in the Operations Manager Event Log on Collector

Challenge Operations Manager Event Log on the Collector server contains the following warning: ID 10378 Module was unable to convert WMI setting .\timestamp Event IDs 1103 and 4506 may also be observed. Cause The root cause is currently investigated by Microsoft. This article will be updated afte...

Hot-Add/Virtual Appliance Failures for Restored or Cloned Backup Proxy

Challenge A backup or replication job fails with the following error when using a VMware Backup Proxy when that proxy is attempting to use Virtual Appliance transport mode hotadd: BackupDiskTrad failed Client error: Failed to open VDDK disk MyDatastore VMName/Disk1.vmdk is read-only mode - true...

Veeam ONE Compatibility Patch for Cloud Director 10.4

The hotfix on this page was built specifically for Veeam ONE v11a 11.0.1.1880. Requirements Before installing this hotfix, ensure you are running Veeam ONE v11a 11.0.1.1880. You can check the version under Help | About in the Veeam ONE Client. Resolved Issues When attempting to add VMware Cloud...

Integration with Veeam Backup Repositories for Kasten K10: Considerations and Limitations

Veeam Support Knowledge Base answer to: Integration with Veeam Backup Repositories for Kasten K10: Considerations and Limitations...

How to Disable Warnings for Veeam Enterprise Plug-Ins

Challenge After upgrading to Veeam Backup & Replication 11a build 11.0.1.1261, Enterprise Plug-in backups display the warning: Backup metadata is not up to date. Please upgrade the backup. Copy Cause Starting with Veeam Backup & Replication 11, a new backup file format is used for Enterprise...

Release Information for Veeam Backup for Microsoft 365 5d

A Cumulative Patch is available for this release: Veeam Backup for Microsoft 365 5d Cumulative Patch KB4278 Requirements Please confirm that you are running one of the following versions of Veeam Backup for Microsoft 365 before upgrading to 5d: 3.0 build 3.0.0.422 4.0 build 4.0.0.1345 4a builds...

Release Information for Veeam ONE 10

Challenge Release information for Veeam ONE 10. Cause Make sure you are running Veeam ONE version 9.5 updates 3, 4 or 4a builds № 9.5.0.3801, 9.5.4.4566 and 9.5.4.4587 prior to installing this update. You can check this under Help | About in Veeam ONE console. After upgrading, your build will be...

Unable to Create Folder (name: ) Error

Challenge The following error occurs when creating a folder in the S3-Compatible Object Storage bucket: "Unable to create folder name: ". Cause Certain S3-compatible API do not support an unsigned payload used by Veeam Backup for Microsoft 365 as the x-amz-content-sha256 authorization header...

IBM SVC or IBM Storwize storage LUN can be deleted under specific circumstances

Challenge | Newly created LUNs on IBM storages that utilize the Spectrum Virtualize Software with Veeam B&RIBM SVC or IBM FlashSystem, under very specific circumstances, can be deleted by Veeam B&R. --- Cause | Spectrum Virtualize software has the ability to reuse LUN IDs, which are not set to be...

Enterprise Plus license is required error on dashboards and reports

Challenge Verify health of Data Warehouse Cause Veeam MP license is synchronized to the Data Warehouse then the reports load this information. If license is invalid in the Data Warehouse due to Synchronization server having issue this error will occur Solution 1. Open SCOM Operations Manager...

High Veeam ONE Database IOPS Index

Challenge Starting with version 9, Veeam ONE database server shows high IOPS usage of approximately 700-800 operations per second with regular spikes exceeding 2500 operations every 5 minutes. Cause As a real-time monitoring solution, Veeam ONE actively performs input-output operations against it...

Monthly Usage Report (X Days Left)

Challenge BEM displays "Please submit a monthly usage report x days left" after submitting usage report Cause There are a few scenarios that can produce this message, detailed below in solutions: Solution 1. Partner has submitted a spreadsheet containing monthly usage report information to 2...

“File does not exist” error after rename failure on deduplication appliance

“File does not exist” error after rename failure on deduplication appliance...

Jobs fail with “Error: Invalid product version” after upgrade to Veeam Backup & Replication v9

Challenge After upgrading to Veeam Backup & Replication v9, all jobs fail with "Error: Invalid product version." Cause During the upgrade process the new v9 license file was not installed. Solution Install the new v9 license file that can be acquired from the support portal. The following link wi...

Backup to tape jobs fails when the source contains .vrb files

Challenge 1. When using backup to tape on a source job containing .vrb files, the jobs may fail with the error: MediaPool not found id: 00000000-0000-0000-0000-000000000000. 2. When enabling incremental mode in backup to tape, .vrb files will be transfered to tape. Cause This is a known issue...

Veeam Explorer for Exchange (VEX) Restore Failure - HTTP Error 501 – Load Balancer

Challenge The following KB is only relevant if a Load Balancer is being used. When attempting to use the "Restore to " function the restore fails with "HTTP Error 501". The following will be found in the logs: Item restore failed: The request failed with HTTP status 501: Invalid Request. Error:...

Throttling Rules Not Being Applied

Challenge A configured Network Throttling rule does not appear to be taking effect. Solution Traffic can only be throttled between backup infrastructure components where the Veeam Data Movers are deployed. These components differ depending on a data protection scenario. For more information, revi...

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...

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...

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...

Release Information for Veeam Backup for Microsoft Azure v3a

Requirements Please confirm that you are running version Veeam Plug-In for Microsoft Azure v2 build 2.0.0.303 or later before upgrading. You can find the currently installed build number Server Version in the About section under Configuration | Support Information. After installing Veeam Plug-In...

Cloned Nimble volumes are not visible

Challenge By default, cloned Nimble Volumes are not shown in Veeam Backup and Replication UI and cannot be interacted with. However you can implement registry setting that will enable Nimble cloned volumes for interaction. Solution 1. Create the following registry value on the Veeam Backup and...

Leap Second Compatibility

Challenge A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time UTC to keep its time of day close to mean solar time. Some software experiences problems when leap seconds are inserted for example, if the leap second is inserted at an unexpected time...

After applying update 1 for vSphere 6.0, Jobs fail with NFC storage unavailable

Challenge Jobs fail with error NFC storage unavailable. Within the agent..source.log file on the source proxy the following error can be found: ERR |SSL error, code: 336151568.error:14094410:SSL routines:SSL3READBYTES:sslv3 alert handshake failure Cause First with Update 1 for vSphere 6.0 and the...

Failed to retrieve the configuration parameters of the [FontCache] service

Challenge Job could report warning or failure depending on VSS/AAIP settings: "Failed to retrieve the configuration parameters of the FontCache service. The resource loader failed to find MUI file" Affected: Hyper-V Guest VMs running Windows 2008 with MS security update KB3045171 Cause After...

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...

Access Denied for ListBuckets/GetBuckets on S3-Compatible Repositories

Challenge When adding an S3-compatible object storage repository to Veeam Backup & Replication, or during regular use of an existing one, Access Denied events related to a ListBuckets/GetBuckets operation may appear in the object storage system's access logs. These issues occur even though the...

List of Security Fixes and Improvements in Veeam Plug-in for Xen

Purpose This article describes all security-related fixes and improvements introduced in each release or update of Veeam Plug-in for Xen. This article aims to provide our customers' security and compliance teams with detailed information on security improvements between releases. Security Fixes a...

After Upgrade to Veeam Backup & Replication 12, Storage Rescan of IBM HyperSwap Volume Fails

Challenge After upgrading to Veeam Backup & Replication 12, Storage Rescan fails with: Failed to update information about IBM HyperSwap volumes. Please ensure that volumes on both sides of IBM HyperSwap relationships are included in the rescan scope in the storage properties. See KB4380 for...

Invalid role for specified account. Status code: Forbidden

Challenge When attempting to add a custom role in the Veeam Plug-In for AWS console, the following error occurs: Invalid role for specified account. Status code: Forbidden Log snippet: Info CDefaultAmazonStsInfrastructure Assuming role 'arn:aws:iam::xyz:role/customrole'. Error TryInvokeAsync...

Veeam Backup & Replication - SQL Backup Guide: Using Microsoft SQL Server Agent With Application - Aware Image Processing

This guide was created to assist you with successfully backing up, and restoring, Microsoft SQL databases...

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...

WAN Accelerator Port Configuration

This KB provides information for port configuration with the use of WAN accelerator...

Mitigating Impact of Compromised eMudhra Intermediate CA Certificates on Veeam Kasten for Kubernetes

Summary Issue Summary In October 2026, eMudhra revoked eight intermediate certificate authority CA certificates because their private keys could be recovered. Until these intermediates are blocked, anyone holding a recovered key can issue certificates that TLS clients trust. In Go programs, this...

System logs rapidly grow in size filled by veeamsnap errors

Agent for Linux kernel driver veeamsnap fills system logs with memory allocation error messages rapidly, system might get low on disk space...

Vulnerabilities Resolved in Veeam Backup & Replication 13.1.2

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...

Vulnerabilities Resolved in Veeam Backup for Microsoft 365 8.6

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...

Vulnerabilities Resolved in Veeam Management Pack for Microsoft System Center 13.1

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...

Vulnerabilities Resolved in Veeam ONE 13.1 Patch 1

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 Management Pack for Microsoft System Center 13.1

Requirements Please confirm that you are running version 9a build 9.1.0.3107 prior to upgrading, as upgrade to version 13.1 is supported from this version only. You can check this in the Operations Manager console under Administration, Management Packs section. After upgrading, your build number...

Failed to connect to the worker service: "Alberta Standard Time" or "British Columbia Standard Time" was not recognized as a valid Windows time zone ID

Challenge After the Windows OS time zone of the Veeam Backup Server is changed to Alberta Standard Time, new and existing workers fail with the following error: Failed to connect to the worker service: "Alberta Standard Time" was not recognized as a valid Windows time zone ID Alternatively, after...

List of Security Fixes and Improvements in Veeam Backup for Microsoft 365

Purpose This article describes all security-related fixes and improvements introduced in each release or update of Veeam Backup for Microsoft 365. This article aims to provide our customers' security and compliance teams with detailed information on security improvements between releases to help...