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Backuptasks cause 100% CPU load and slow down all virtual maschines on a Hyper-V-Host

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Hello,

Since updating from Backup & Recovery 11.7 Virtual Edition to Backup an Recovery 12.5 Virtual Edition, Acronis has been causing 100% CPU utilization on one of our Hyper-V hosts at various intervals (mostly after weekends).
This causes all virtual machines on the host to become very slow and users are unable to work on these systems. 
The backup on a virtual system seems to be the trigger, because most of the time 2 or 3 backup processes hang and when you stop them the host runs with normal speed again.
An update to Acronis Cyber-Protect 15 did not fix the problem. We have now uninstalled and reinstalled everything once on our Hyper-V hosts and hope that the error is now fixed.

If it does happen again. Where could we look to find the error? There is nothing in the virtual machine event log.

Thanks in advance.

Andre

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Contributions: 2
Commentaires: 1727

Hello Jurgen.

Welcome to the forum!

  1. Check Acronis logs: Look for any error messages or unusual events in the Acronis log files. The log files are usually located in a specific folder on the Acronis installation directory. Analyzing these logs can provide insights into the cause of the CPU utilization issue.

  2. Monitor system resources: Use performance monitoring tools to track the CPU, memory, and disk usage of the Hyper-V host while the backups are running. This can help identify if any specific process or component is causing the high CPU utilization.

  3. Check for conflicting software: Ensure that there are no other backup or security software installed on the Hyper-V host that may conflict with Acronis. Sometimes, incompatible software or conflicting configurations can lead to performance issues.

  4. Update Acronis: Ensure that you have installed the latest updates and patches for Acronis. Newer versions often include bug fixes and performance improvements that can address known issues.

  5. Reach out to Acronis support: If the problem persists, it is recommended to contact Acronis technical support. Such issues require an investigation since they can have many root causes: https://kb.acronis.com/content/8153

Thanks.