Wednesday, March 25, 2015

No vmkcore disk partition is available and no network coredump server has been configured. Host core dumps cannot be saved

Some time when you reboot esxi host or with other issue you did some hardware changes in esxi host.
we can find a error message on esxi host summary.


No vmkcore disk partition is available and no network coredump server has been configured. 
Host core dumps cannot be saved






How to Resolve


  • Connect the esxi host from SSH putty.
Enter below given comment, once you connect esxi host from putty.

esxcli system coredump partition set -u

It will resets the partition to a unconfigured status

esxcli system coredump partition set -e true -s

This sets the partition pre-existing to enabled it with the smart switch to automatically enable on restart.

Restart the esxi host now, the error will disappears. :)

Post your comments.

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  2. receive the following error when I enter this command .... -e true -s

    " no suitable diagnostic partitions found" Any Thoughts?

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