Monitoring disk health on VMware ESXi with smartctl
Standalone ESXi hosts and small vSphere clusters often run on local SATA or SAS disks — in a homelab, a branch office, or a backup host. When one of those disks starts to fail, you want to know about it from your monitoring, not from a datastore that suddenly goes read-only.
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ESXi disk health in Zabbix: SMART for SATA, health log for NVMe
The standard Zabbix templates for VMware (VMware and VMware Hypervisor, using the vSphere API) are great for CPU, memory, datastores and VM status. What they don’t tell you is how the physical disks in a standalone ESXi host are doing. You learn that a disk failed when a datastore goes offline — not a week earlier, when the drive started reallocating sectors.
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