Symptoms:
- vCenter UI shows remove host pre-check failures.
- VxRail web.log shows following error messages;
2020-08-18T06:51:21.868+0000 INFO [Thread-667] com.emc.mystic.manager.web.service.nodes.prechecker.VsanHealthyChecker VsanHealthyChecker.check:18 - VsanHealthyChecker Cluster Status = CRITICAL
2020-08-18T06:51:21.872+0000 INFO [Thread-667] com.emc.mystic.manager.commons.db.util.OperationStatusUtil OperationStatusUtil.updateOperationStatusInfo:72 - Updating operation status info in the DB: c68b08a6-f225-452c-ae9f-3494d26a1ae1
2020-08-18T06:51:21.874+0000 INFO [Thread-667] com.emc.mystic.manager.web.service.nodes.action.PrecheckAction PrecheckAction.perform:48 - Failed to do PrecheckAction...
2020-08-18T06:51:21.874+0000 INFO [Thread-667] com.emc.mystic.manager.web.service.nodes.action.PrecheckAction PrecheckAction.getErrorMessage:79 - Node removal precheck error bundleName: NodeOperation, key: node.removal.vsanhealty.check, params: [], locale: en_US.
2020-08-18T06:51:21.874+0000 ERROR [Thread-667] com.emc.mystic.manager.web.service.nodes.action.PrecheckAction PrecheckAction.perform:51 - Failed to do PrecheckAction. Name: VsanHealthyChecker, Error: Failed to check vSAN health.
2020-08-18T06:51:21.874+0000 ERROR [Thread-667] com.emc.mystic.manager.web.service.nodes.NodeRemovalServiceImpl NodeRemovalServiceImpl.perform:152 - Failed to Remove node
com.emc.mystic.manager.web.webutil.RestException
at com.emc.mystic.manager.web.webutil.RestException.NodeRemovalPrecheckFailedException(RestException.java:449) ~[classes/:?]
at com.emc.mystic.manager.web.service.nodes.action.PrecheckAction.perform(PrecheckAction.java:54) ~[classes/:?]
at com.emc.mystic.manager.web.service.nodes.action.AbstractNodeAction.execute(AbstractNodeAction.java:39) ~[classes/:?]
at com.emc.mystic.manager.web.service.nodes.NodeRemovalServiceImpl.perform(NodeRemovalServiceImpl.java:143) ~[classes/:?]
at com.emc.mystic.manager.web.controller.ClusterControllerImpl.performNodeRemoval(ClusterControllerImpl.java:155) ~[classes/:?]
at com.emc.mystic.manager.web.controller.ClusterControllerImpl.lambda$removeHost$1(ClusterControllerImpl.java:118) ~[classes/:?]
at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) [?:1.8.0_241]