Hyper-V

Hyper-V Cluster Design Fundamentals for v2025: CSVs, Quorum, Fault Domains, and the Sizing Decisions That Bite Later

This is the first article in a new series on Hyper-V cluster design for Windows Server 2025. The goal of the series: give infrastructure engineers a practical architecture

By Eric Black · 24 Apr 2026 Veeam

Break Glass #10: Backup Chain Corruption: Recovering a Broken Forward Incremental Chain in Veeam v13

Break Glass // Scenario 10 A restore fails with "Backup files are unavailable." Or a job reports that restore points are missing in the chain. Or the

By Eric Black · 22 Apr 2026 Veeam

Break Glass #09: ReFS and XFS Block Clone Failures: Diagnosing and Fixing Fast Clone Errors in Veeam v13

Break Glass // Scenario 09 Synthetic full backup jobs are failing or running slower than they should. The session log shows errors related to ReFS integrity streams or XFS

By Eric Black · 22 Apr 2026 Veeam

Break Glass #08: Repository Out of Space Mid-Job: Recovering and Getting Backups Running Again

Break Glass // Scenario 08 The repository ran out of space while a job was running. Backup jobs are failing. Some jobs got partway through a write before they

By Eric Black · 21 Apr 2026 Veeam

Break Glass #07: Hardened Repository Lockout: Restoring Access to a Disconnected Veeam Linux Repository

Break Glass // Scenario 07 VBR cannot connect to the Hardened Linux Repository. Backup jobs are failing. The VBR server was rebuilt, or a component upgrade consumed the single-use

By Eric Black · 20 Apr 2026 Veeam

Veeam v13: Cross-Platform Restore from VMware to Hyper-V

Veeam v13: Cross-Platform Restore from VMware to Hyper-V Instant Recovery of a VMware VM backup to a Hyper-V cluster, plus the VMware Tools cleanup Veeam does not do

By Eric Black · 17 Apr 2026 Veeam

System Center VMM 2025 on Hyper-V with Veeam v13

System Center VMM 2025 on Hyper-V with Veeam v13 SCVMM management plane on a Hyper-V cluster with backup and replica from Veeam Backup and Replication v13 This is

By Eric Black · 16 Apr 2026 Veeam

SOBR Extent Failure - Recovering a Scale-Out Backup Repository After an Extent Goes Offline

Break Glass // Scenario 06 An extent in your Scale-Out Backup Repository went offline. Could be a storage system failure, a network outage to the extent host, a RAID

By Eric Black · 16 Apr 2026 Veeam

Break Glass #05: Proxy Failure Mid-Backup - Clearing Orphaned Snapshots and Recovering from VMware Snapshot

Break Glass // Scenario 05 The backup proxy crashed mid-job. Now several VMs are sitting on orphaned snapshots and nobody can reach one of them over the network. Another

By Eric Black · 14 Apr 2026 Veeam

Break Glass #04: Accidental Backup Deletion - Recovering After Retention Misconfiguration or Manual Deletion

Break Glass // Scenario 04 Someone changed the retention policy and the next job run deleted two weeks of restore points. Or someone right-clicked a backup and hit Delete

By Eric Black · 14 Apr 2026 Veeam

Break Glass #03: Configuration Database Corruption - Diagnosing and Recovering a Corrupt VBR PostgreSQL

Break Glass // Scenario 03 The VBR console opens to an error. Jobs are not running. The config backup job failed overnight. The PostgreSQL service started but cannot serve

By Eric Black · 13 Apr 2026 Veeam

Break Glass #02: Lost Encryption Password

Break Glass // Scenario 02 Someone needs a restore. The backup is encrypted. Nobody can find the password. The engineer who set it left six months ago. Your backups

By Eric Black · 13 Apr 2026