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 Sometimes, we need to remember some basic concepts to understand what happens "under the hood" in operations we perform on a day-to-day basis, such as performing an application-consistent backup and how to troubleshoot it. So, what is Microsoft VSS?Microsoft Volume Shadow Copy Service (VSS) is a volume backup framework in Microsoft Windows Operating Systems.It integrates with many applications and backup solutions, like Veeam Backup & Replication, to provide application-consistent backups. Why is VSS used? Some enterprise applications m

Hi AllI have been working on a 1 stop shop for everything Veeam Data Platform 12.3 documentation wiseThis includes a break down on the subscription offerings, and deploying and configuration information forVeeam Backup And ReplicationVeeam Enterprise ManagerVeeam ONEVeeam Recovery OrchestratorIts not an entirely complete guide, some bits I dropped out of the scope, as Veeam has SO much stuff and this was already getting long, so I covered what I felt was the most important featuresIts sectioned out to make it easier to read and due to the massive scope on itMost bits should adhear to best practicesI hope this helps people get the most out of Veeam, as I feels its the best out there and offers so much value in its feature sethttps://blog.leaha.co.uk/2025/04/22/v

Hi Everyone,Over the past few months, like many others, my role has shifted slightly.After years of working deeply with VMware technologies (vSphere, NSX, vSAN, Veeam integrations, etc.), I’m now also helping customers explore adjacent or complementary solutions — especially in Kubernetes-native environments.One technology that comes up a lot is KubeVirt — a way to run VMs inside Kubernetes clusters, alongside containers.It's not intended to replace vSphere, and it’s certainly not a "better vs worse" situation. It's simply different — and the learning curve can catch you off guard if you approach it expecting it to feel like vCenter.While working with KubeVirt, here are a few key takeaways I thought might be helpful to share: Storage is very different: Instead of datastores and VMDKs, you deal with Kubernetes PersistentVolumeClaims (PVCs) and CSI drivers. Live migration depends heavily

I’ve got an Ubuntu 24.04 VM running in Proxmox VE which is backed up using Backup & Recovery Community edition.  The VM failed recently and I restored the VM back to Proxmox VE, but it just boots to Grub recovery. From what I understand, the problem is the VM is encrypted with LUKS which is transparent to Veeam.  I’ve read a few posts and guides on getting this to work, but I’m not having any luck.  I’m able to decrypt and mount the volume in a live environment, but I cannot get it to permanently mount in order to boot. Is there anything special that needs to be done for encrypted Ubuntu VMs in Proxmox or any guide for restoring LUKS VMs? 

I have moved VBR 12.3 to a Hyper-V VM as recommended. I would like to continue to use a set of USB drives for the backup copies. Is this possible?

Although this article on my blog is a bit older, it’s still relevant and maybe useful for some of you, who are running a DD with Retention Lock in Compliance mode. Let’s go:  Here is a short step-by-step guide on how to expand the capacity on a Dell Data Domain with Retention Lock Compliance Mode enabled. For a 'normal' Data Domain system, this is relatively easy to do via the Dell PowerProtect DD System Manager website. You select the Licenses option in the Administration section and simply swap the existing license for the new/updated license (obtained via the Dell Digital Locker ). 

Does anyone have recommendations for time settings on a Veeam hardened repo?  After researching, I’m seeing conflicting recommendations from use the internal CMOS clock, use an internal NTP server, or use an external NTP server.  Just wanted to see what some of the Veeam experts recommend.

As of the 27th March we have seen a significant increase in incremental backup size for our Microsoft 365 backup… Peaking at 800GB+ on the 31st! We have different jobs configured for different sources, for example we have separate jobs for:User Mailboxes Shared Mailboxes SharePoint Sites OneDrive SitesLooking at the size of each backup job, I think the increase in backup size is primarily due to the user mailbox jobs; the other jobs look ‘normal’ in terms of their size. Is anyone else seeing a sudden increase in backup size in the last couple of weeks?  Does anyone have any tips for pinpointing where the increase is coming from? 

Products:Veeam B&R Community Edition 12.3.1.1139 (Windows Server 2022) Windows Agent 6.3.1.1074 (Windows 11 Pro for Workstations, version 24H2)Using B&R Console I accidentally uninstalled CBT Driver from the Windows 11 PC, and now I cannot reinstall it anymore.The CBT driver is also missing from installed Windows apps and program list in the legacy Control panel.I tried to uninstall completely all components on that client, I removed it from my B&R Protection group, restarted it many times, but no avail.I also tried to install the standalone Agent, but the CBT driver install/uninstall option is missing from settings.Even command line method fails:Veeam.Agent.Configurator.exe -uninstallCBTDriverExitCode: 0Veeam.Agent.Configurator.exe -installCBTDriverExitCode: 20Errors:Failed to perform the operation.File exists

Following on from my previous post, I am now in a pickle because after uninstalling a failed install of VBR 12.3 and reinstalling 12.1 the system is incapable of backing up my VMs. Need to completely uninstall all 12.1 stuff and do a clean install and forget about importing the config. Stay tuned.

Hello,When we have rental license how we can calculate how many VM can be protected by the available license?  

Veeam Backup & Replication Version 12.3.1.1139 – March 2025 Release OverviewVeeam Backup & Replication version 12.3.1.1139 was released on March 19, 2025. This update includes important security patches, new features, and enhancements. In this post, we'll cover the main highlights, such as security updates, improved platform support, and added functionalities.Security UpdatesVeeam Backup & Replication 12.3.1.1139 includes critical security patches addressing important vulnerabilities:CVE-2025-23120 (Critical - CVSS 9.9): This vulnerability allows authenticated domain users to execute remote code, making it a serious concern for domain-joined backup servers. It’s worth noting that this vulnerability only affects domain-joined backup servers, which goes against the Security & Compliance Best Practices. It's crucial for users to apply this update as soon as possible.

We should be plotting something!  As part of the presentation at VeeamON 2025 with ​@Geoff Burke, we introduced the new Grafana Dashboard, inspired by ​@jorge.delacruz's work for several Veeam products.The dashboard supports one or multiple clusters containing one or multiple nodes.For both the cluster and the nodes, the following details are available:Cluster and Node status Including Update and join/leave status Capacity status CPU & Disk I/O Network graphs (S3 and Internode) Internode graph will be empty if there is only one node in the cluster S3 Service Storage UsageThe following things are required:Grafana InfluxDB 2 Git Linux OS

Someone on the Community reported the error of this post - “All backup proxies are offline or outdated” here -https://community.veeam.com/topic/show?tid=6645&fid=66I ran in to this issue in my HomeLab and opened a ticket with Veeam Support about it.  I was able to figure out the issue myself and wanted to post the fix steps here so that if you run in to this issue you can take the steps needed to address it yourself.This error does not seem to report anything in the log files which was the first thing I checked.  So, the steps to fix it are as follows -Remove the Proxy from the Veeam console using Delete. Remove the server from Managed Servers section - this will uninstall the components from the server. Log in to the Proxy server to ensure all components for Veeam are gone - if not remo

Hi everyone, I have again encountered a problem related to backup using veeam backup, the error message is below.“Processing VM Linux Error: An error occurred while saving the snapshot: Too many levels of redo logs. (An error occurred while saving the snapshot: Too many levels of redo logs., An error occurred while taking a snapshot: Too many levels of redo logs.)Failed to create VM snapshot. Error: CreateSnapshot failed, vmRef 11, timeout 1800000, snName VEEAM BACKUP TEMPORARY SNAPSHOT, snDescription Please do not delete this snapshot. It is being used by Veeam Backup., memory False, quiesce FalseError: An error occurred while saving the snapshot: Too many levels of redo logs. (An error occurred while saving the snapshot: Too many levels of redo logs., An error occurred while taking a snapshot: Too many levels of redo logs.)” Detail diskVM Disk : 1 TBDatastore Free : 300 GB I really appreciate the advice given..

Over the past few months, I have been studying and testing different options for secure and immutable backup storage with Veeam Backup & Replication. I tried to compare the features of the available options:Veeam Hardened Repository Object Storage Repositories Deduplicating Storage AppliancesOf course, there’s no one-size-fits-all solution. The best choice always depends on specific requirements and the environment. Some products even cross traditional category boundaries, making direct comparisons even more important.I would love to hear your opinions on the advantages and disadvantages, your real-world experiences, and any corrections or additional insights you might have. In the article, I also summarized the key parameters of selected products.Any feedback is very much appreciated!

Dears, Greetings,I got an issue in my server as i am adding the machines as physical infrastructure.the issue is the job stuck at phase of storage initialized  then it fails after a while for windows with given error: and for linux machine it fails quickly with error  the thing is the network is fine and the connection to the NAS storage also so could you please help me in this error?Thanks,

Dear All,Let me ask for advice regarding the significant difference between the backup size and the repository size, which is causing inefficient storage usage and making it seem like deletions are not working properly. Below is my configuration: Source Backup: vMWare vCenter Destination Repository: Cloudian Object Storage Backup Frequency: Once per day Full Backup: Once per week Rettention: 7 Days Immutability: 5 days + 0 days (I modified the registry to set block generation to 0 days Capture:Rettention Policy (Job Configuration)Immutability (Repository Con

 I currently have three separate data centers (DCs), each with its own Linux Proxy Server and Backup Repository. A single Veeam Backup & Replication (B&R) server, located in a fourth data center, manages all backup jobs across the three DCs.If this central Veeam B&R server becomes unavailable, all backup jobs across the environment would fail. To eliminate this single point of failure, I’m planning to deploy a dedicated Veeam B&R server in each data center. This way, each site will operate independently with its own Veeam B&R Server, Linux Proxy, and Backup Repository.  What is the recommended approach for implementing this setup? Will additional Veeam licenses be required for running multiple B&R servers? Once implemented, how can I migrate existing backup jobs and managed hosts from the central Veeam server to the new local Veeam servers in each data center?

!-->If you've ever worked with tape backups, you probably know that setting up a tape library with Veeam can seem a bit complicated at first.!-->However, once you understand how everything fits together and follow the correct steps, the whole process becomes much more manageable.!-->In this post, I’d like to share my hands-on experience with this integration, from detecting the library, configuring the environment, creating tape jobs. !-->Installing the Medium Changer Driver !-->Before anything else, it’s important that Veeam correctly detects both the tape library and the tape drives.!-->After connecting the device via SAS or FC through the HBA, installing the correct drivers is a critical step.!-->Go to

 Veeam’s latest report, From Risk to Resilience: 2025 Ransomware Trends and Proactive Strategies, reveals alarming insights into the evolving ransomware threat landscape. Surveying 1,300 IT and security leaders, the report highlights:69% of organizations experienced a ransomware attack in the past year. 10% of organizations recovered more than 90% of their data post-attack. 57% recovered less than 50% of their data.Key trends include:Data Exfiltration Attacks: Cybercriminals increasingly steal sensitive information without encrypting systems. Decreasing Ransom Payments: More organizations are opting not to pay ransoms, emphasizing the importance of robust recovery strategies. Law Enforcement Impact: Coordinated efforts have disrupted major ransomware groups, but smaller and independent attackers