Slow backups on servers running McAfee On-Access Scanner

SUMMARY

Backups may become slow on servers running McAfee On-Access Scanner. When an anti-virus scan is occurring at the same time as a backup, it can drastically affect the speed of the backup.

ISSUE

Slow backups due to McAfee On-Access scanner

For more detailed information on backup failures and performance issues see Unitrends KB 5062 - Backup Failures and Performance Issues

 

RESOLUTION

Disable McAfee from running files Unitrends is currently backing up by:

  • Opening McAfee On-Access Scanner
  • All Processes
  • Scan Items tab
  • Uncheck Opened for backup

CAUSE

When an anti-virus scan is occurring at the same time as a backup, it will drastically affect the speed of the backup.

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