An administrator is unable to start the vCenter Server service. The vpxd.log file shows this service failure: [13308 error 'Default' opID=622892-371bf717] CoreDump: Unable to write minidump [13308…

The vpxd process (VMware vCenter Server Daemon) runs on the vCenter Server host, and the log message 'Unable to write minidump - There is not enough space on the disk' indicates the local OS disk partition used for logs and crash dumps is full. Freeing or expanding disk space on the vCenter Server itself will allow the minidump to be written and the service to start successfully.

The error references a minidump write failure on the vCenter Server's local filesystem, not a database storage issue; insufficient database space produces SQL connection or transaction errors in the log, not disk write failures.

VMFS volumes are ESXi datastore filesystems used for VM storage, not for the vCenter Server operating system or its process logs; the minidump target is the vCenter Server's local OS disk.

The ESXi ramdisk is an in-memory filesystem used by ESXi host system processes, not by the vCenter Server daemon; vpxd writes its logs and dumps to the vCenter Server's own disk storage, which is separate from ESXi.