A Host Exit Standby Error message shows that the VMware host failed to exit standby mode when called upon by an Oracle VMware or SQL Server VMware application.
With a Host Standby Exit Error, a VMware host can be placed in standby mode in the following ways:
- The VMware Distributed Power Management (DPM) feature to reduce power consumption for an ESX/ESXi host.
- Manually by the user. The VMware host that enters standby mode is powered off.
If the time to exit standby mode exceeds 15 minutes when DPM or a user then attempts to take the host out of standby mode, then vCenter Server might mark the host as having failed to exit standby mode. Even if the host powers on successfully and reconnects with vCenter Server after that time, vCenter Server will consider the exit standby mode operation a failure and generate an error.
For VMware hosts that take a long time to power on such as a host that has a large number (more than 250) of datastores, DPM should be disabled, and users should avoid putting that host into standby.
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