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OPERATIONAL DEFECT DATABASE
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Instant Clone Provisioning fails with a Log Line entry similar to the below in a Connection Server debug file: Location of Horizon (VDM) log files (1027744) 2022-03-28T14:29:58.167-04:00 DEBUG (1D90-0ECC) <PendingOperation-vm-2183397:snapshot-2183595-SchedulePushImage> [NgvcHelper] Priming of pool vdi-test has failed. - VC_FAULT_FATAL: A general system error occurred: Error in digest configuration The specified feature is not supported by this version : com.vmware.daas.cloneprep.common.CPCbrcWarningException: A general system error occurred: Error in digest configuration The specified feature is not supported by this version, VM moid: vm-2183598, disk key: 2000, timed out: false [NgvcHelper] Progress report update for 3a82480e-1a0b-4f95-bcdc-03010c58724c : version=66 : FAILED : 99%
An article to outline a VC_FAULT_FATAL: A general system error occurred: Error in digest configuration The specified feature is not supported by this versionThis is a child article of VC_FAULT_FATAL: An Index of Instant Clone Creation Errors returned by Vcenter (90411)
Horizon instructs Vcenter to create virtual machine objects in Vcenter utilizing the Simple Object Access Protocol.When Vcenter fails to complete an instruction, it will return an error response to Horizon with details on the cause.View Storage Accelerator This feature uses the Content Based Read Cache (CBRC) feature in ESXi hosts.For instant-clone desktop pools, View Storage Accelerator is only needed for replica VMs and is enabled automatically for individual pools. It cannot be turned off on a pool level. To disable, you must disable View Storage Accelerator globally,
Known Issues: Content Based Read Cache (CBRC) creates a digest and Horizon will wait until this task is completed. You may have scenarios where the time to create the digest creation is longer than the default timeout settings of 90 minutes in Horizon. Whilst you troubleshoot the performance aspect on the esxi host level, you can extend the timeouts if required: Instant Clone provisioning operation timeout due to CBRC digest creation taking too much time (75019) Guest O/S Compatibility: This message may appear in a scenario where vTPM is enabled on Windows 11 and misconfiguration results in issues customizing. Enable vTPM on the Pool Level rather than on your parent image. Installation on the parent image can lead to inconsistencies including this error with the digest. Please review documentation carefully when enabling: Enabling VBS and vTPM for an Instant-Clone Desktop PoolVMware Horizon and Horizon Cloud readiness for Microsoft Windows 11.VC_FAULT_FATAL: A specified parameter was not correct: spec.disk.backing.crypto Instant Clone Creation Error (90427) - outlines a conflict with enabling encryption on a parent machine vs at the pool/datastore level. Known Storage Issues: VMware ESXi 8.0a Release Notes You cannot create snapshots of virtual machines due to an error in the Content Based Read Cache (CBRC) that a digest operation has failed A rare race condition when assigning a content ID during the update of the CBRC digest file might cause a discrepancy between the content ID in the data disk and the digest disk. As a result, you cannot create virtual machine snapshots. You see an error such as An error occurred while saving the snapshot: A digest operation has failed in the backtrace. The snapshot creation task completes upon retry. Workaround: Retry the snapshot creation task.