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Part 29: HOW TO: FIX No coredump target has been configured. Host core dumps cannot be saved

Sunday, September 29th, 2024

This video builds on the last videos in this series of Hancock’s VMware Half Hour, where we continue to build our VMware vSphere 7.0 Lab, and in this video, we start to explore the Warning messages appearing on several of our hosts in the cluster.

In this video, I will show you HOW TO: FIX the No coredump target has been configured. Host core dumps cannot be saved. There have been some changes in ESXi 7.0, and the core dumps can now only be written to SSD, HDD, NVMe, not persistent storage such as USB flash drives or SD cards. I discuss some of the issues with ESXi 7.0 and the support of USB flash drives and SD cards. There has been some confusion over the last 18 months about the support of ESXi 7.0 on USB flash drives and SD cards, VMware, Dell and HPE state there were not supported, because 7.0.2 or later caused issues with corruption of the ESXi installation if installed on these devices, and later VMware stated this was deprecated,. and then more recently did an about turn and not it’s supported.

SD card/USB boot device revised guidance (85685)

I think the “writing is on the wall” and if you are in a production environment using USB flash drives and SD cards, now is the time to change to SSD, HDD, NVMe or SATADOM for ESXi installations.

The previous videos are listed here for your convenience

Part 5: HOW TO: Enable SSH Remote Access on a VMware vSphere Hypervisor 7.0 (ESXi 7.0).

Part 24: HOW TO: Cross vCenter Server vMotion (export) between standalone vCenter Servers 7.0 not linked to the current SSO domain.

Part 25: HOW TO: Add a Synology NAS providing NFS Storge to VMware vSphere Hypervisor ESXi 7.0.

Part 26: HOW TO: Create a VMware vSphere Cluster add an EVC Baseline and then present a Synology NAS to multiple hosts in the cluster.

Part 27: HOW TO: Migrate VMware vCenter Server 7.0 in an enabled EVC VMware vSphere 7.0 Cluster of ESXi 7.0 hosts using “Andy’s Towers of Hanoi solution”

Part 28: HOW TO: FIX the Warning System logs on host are stored on non-persistent storage, Move system logs to NFS shared storage.

HOW TO: Suppress Configuration Issues System logs on host are stored on non-persistent storage

New Kernel options available on ESXi 7.0 (77009)

Configuring a diagnostic coredump partition on an ESXi host (2004299)