OPERATIONAL DEFECT DATABASE
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The following vSphere errors or warnings are observed on an ESXi host when potential problems are detected in the scratch or ESX-OSData configuration.VOB messages:esx.problem.osdata.partition.full "OSData is low on available space ({1} MiB free). This may result in system failure. Please refer to KB article: KB 87212.esx.problem.osdata.path.notfound"Configured OSData cannot be found. Please refer to KB article: KB 87212.esx.problem.scratch.partition.full"Scratch is low on available space ({1} MiB free). This may result in system failure. Please refer to KB article: KB 87212.esx.problem.scratch.on.usb"Scratch is configured to SD-Card/USB device. This may result in system failure. Please add a secondary persistent device." For more information about VOB messages, see Using the VMkernel Observations for Creating Alarms
This article documents the VOBs introduced in vSphere 8.0 which are raised when a system is operating with an ESX-OSData or scratch configuration with a potential problem.
ESX-OSData/scratch partition is running out of storage space. ESX-OSData/scratch is configured to an unsupported device type or one which is prone to failure. ESX-OSData is configured to a VMFS datastore.
Given below are the error messages with resolution :vob.user.osdata.partition.full and vob.user.scratch.partition.full: The configured ESX-OSData/scratch partition has less than 5% free space available. Remove unnecessary files on the partition or reconfigure ESX-OSData/scratch to a volume where more space is available. vob.user.osdata.notsupported.on.device and vob.user.scratch.notsupported.on.device: Configure ESX-OSData/scratch to point to supported device type. vob.user.osdata.on.vmfs : Assigning ESX-OSData to a workload VMFS datastore may exhaust the partition's storage. ESX-OSData should be configured to a dedicated VMFS-L partition on a high-quality device.
For messages applicable to 7.0U3, please refer to KB 85615
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