- Veeam Support Knowledge Base
- VM Uptime in Hyper-V Manager Might Reset During Backup
VM Uptime in Hyper-V Manager Might Reset During Backup
| KB ID: | 1896 |
| Product: | Veeam Backup & Replication |
| Version: | all |
| Published: | 2014-06-16 |
| Last Modified: | 2025-05-08 |
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Article Applicability
This article is relevant only to Hyper-V on Server 2012 and Server 2012 R2.
Note: Server 2012 R2 reached end-of-life on October 10, 2023.
Challenge
System uptime reported by Hyper-V manager appears inaccurate after Application-Aware enabled backup or replication. System uptime inside the guest OS is accurate.
Cause
The Application-Aware backup process in Hyper-V 2012 R2 will use Saved State (Offline Backup) backup if Online Backup is not available. The Saved State backup process causes the system uptime counter in Hyper-V manager to reset.
Solution
- Find the issue preventing Online Backup, causing Veeam to use the Saved State backup.
- Ignore the time reported by Hyper-V Manager and instead reference the uptime reported by the guest OS.
- Enable Application-Aware only for VMs that need it to minimize the issue.
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