Step 12. Choose Performance Cache Location

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    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 Client 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 Path 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 Microsoft Docs.
    • 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

    Tip:

    After installation, you can change the performance cache folder in the Veeam ONE Settings utility. For details, see section Veeam ONE Server of the Veeam ONE Monitoring Guide.