The storage all paths down (APD) handling on your ESXi host is enabled by default. When it is enabled, the host continues to retry nonvirtual machine I/O commands to a storage device in the APD state for a limited time period. When the time period expires, the host stops its retry attempts and terminates any nonvirtual machine I/O. You can disable the APD handling feature on your host.
- Browse to the host in the vSphere Web Client navigator.
- Click the Configure tab.
- Under System, click Advanced System Settings.
- In the Advanced System Settings table, select the Misc.APDHandlingEnable parameter and click the Edit icon.
- Change the value to 0.