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Redirecting system logs to a vSAN object causes an ESXi host lock up (2147541)

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When systems logs or the ESXi host scratch partition are stored on the vSAN datastore, it can cause the ESXi host to become unresponsive to vCenter Server and the host CLI.


In certain rare scenarios, the system logger and other processes on the ESXi host may not be able to update files in the scratch space. This is typically, though not exclusively, associated with another event that causes vSAN storage operations to fail to process IO from these processes. When this issue occurs, it can cause the host to become completely non-responsive, including the inability to interact with the host via a command-line interface.


If this issue occurs, reboot the ESXi host to recover manageability of the host.

To prevent this issue occurring, do not store system logs or scratch locations on the vSAN datastore. 

For more information about configuring system scratch partitions and the syslog configuration, see: 

See Also

Update History

04/18/2017 - Added vSAN 6.6 to Products

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