I have setup B&R 13.1 on a windows client, and connected to xcp-ng pool. I have removed all previous backups from previous beta 1 tests. Initial full backup was successful no issues. On first delta backup 4 out of 7 vms have this warrning / error...
8/5/2026 5:34:50 PM Warning : Failed to use CBT: [Task e75c4247-2ee1-7b51-088c-b970ace60f3d (Async.VDI.list_changed_blocks) failed: . SR_BACKEND_FAILURE_460. . Failed to calculate changed blocks for given VDIs. [opterr=Source and target VDI are unrelated]
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arcatlantic
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Mildur
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Re: Veeam B&R 13.1 xcp-ng error
Hello,
That sounds like a technical issue. We cannot investigate such issues through a forum topic.
Please provide a support case ID for this issue, as requested when you click New Topic. Without case number, the topic will eventually be deleted by moderators.
Best regards,
Fabian
PS: support can only help if you upload logs https://www.veeam.com/kb1832
That sounds like a technical issue. We cannot investigate such issues through a forum topic.
Please provide a support case ID for this issue, as requested when you click New Topic. Without case number, the topic will eventually be deleted by moderators.
Best regards,
Fabian
PS: support can only help if you upload logs https://www.veeam.com/kb1832
Product Management Analyst @ Veeam Software
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