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Veeam ONE 9.5
Deployment Guide

Step 12. Choose Performance Cache Location

At the Performance Data Caching step of the wizard, choose a directory where the performance cache must be located.

Performance cache is space on disk to which Veeam ONE stores real-time performance data, as this data is collected. Performance data stored in cache is used for Veeam ONE Monitor dashboards and views. Disk-based performance cache allows significantly decrease RAM utilization on the machine that runs the Veeam ONE Server component.

By default, the performance cache is stored to the C:\PerfCache folder. To store the cache to a different folder, click Browse next to the Performance cache field and specify a path to the new folder.

When choosing a location for performance cache, consider the following recommendations:

  • Make sure that the disk where the performance cache is located can quickly complete read and write requests. Do not locate the cache remotely in networks with high latency values.
  • For large monitoring environments, place the performance cache on an SSD local to the machine where the Veeam ONE Server component runs. For small and medium monitoring environments, a HDD is normally enough.
  • Length of the performance cache folder path must not exceed the Windows Max Path Limitation value. For details, see
  • Make sure there is enough disk space for performance cache. The cache is cleared on an hourly basis, as new data is collected; however, in large monitoring environments it can take significant disk space. For example, in the Advanced Scalability Deployment mode, during peak loads, the cache can take up to 6 GB disk space for each 1000 VMs.

Specify Performance Cache Location

Step 12. Choose Performance Cache Location Tip:

Starting from Veeam ONE 9.5 Update 3, after installation, you can change the performance cache folder in the Veeam ONE Settings utility. For details, see Monitor Settings.

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