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How to change the amount of JAVA HEAP allocated for VSC from Windows

Last Updated:

Applies to

  • Virtual Storage Console
  • SnapManager for Virtual Infrastructure
  • FlexPod


This article describes the procedure to be followed to change the amount of RAM for JAVA through Virtual Storage Console (VSC) and SnapManager for Virtual Infrastructure (SMVI). The default amount of JAVA HEAP is designed for vSphere environments with 10-20 ESX hosts. If you find that your VSC is responding slowly, listing backups is taking a long time, or the VSC plugin appears to be unresponsive, the procedure below will improve the overall performance of the plugin by modifying the amount of RAM on the Virtual Machine (VM) or physical server, and increasing the amount of JAVA heap for VSC and SMVI.

This KB article will guide you through increasing the values for both the NetApp vSphere Plugin Framework service (VSC NVPF Service), and the Backup and Recovery (SMVI) service. The values listed below are guidelines only, and the values can be increased or decreased depending on your environment and configuration. Modifying the amount of JAVA HEAP allocated without increasing the 'physical memory' of the VM or host on which VSC is installed is neither recommended or useful; without the increase in memory to the OS and other applications, increasing the JAVA HEAP will only cause further performance issues.


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