VM Uptime in Hyper-V Manager Might Reset During Backup

KB ID: 1896
Product: Veeam Backup & Replication
Version: all
Last Modified: 2016-09-09


System uptime reported by Hyper-V manager appears inaccurate after Application-Aware enabled backup or replication. System uptime inside the guest OS is accurate.


The Application-Aware backup process in Hyper-V 2012 R2 will use Saved State backup if Online Backup is not available. The Saved State backup process causes the system uptime counter in Hyper-V manager to reset.


Find the issue preventing online backup, causing Veeam to use 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 which need it to minimize the issue.

More Information

This issue is present with any software using Saved State backups, including Windows Backup.

Before Backup:

User-added image

After AAIP enabled backup:

User-added image

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