Backups freezing after upgrading Dell ESXi to 6.7 update 3. (4041905)

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Backups freezing after upgrading Dell ESXi to 6.7 update 3.
Description

The backups get stuck after performing an upgrade of a Dell ESXi to 6.7u3. The issue is random and no pattern can be identified as it happens across all ESXi hosts and datastores.
Cause
Dell and VMware have identified an issue with the Dell ESXi image. The following VMware articles have been made available:
- Dell OpenManage Server Administrator 9.3.0 is unsupported in vSphere 6.7 U2/U3 environments.
- Excessive Hardware health alarms being triggered for "Sensor -1 type" on ESXi hosts running vSphere 6.7 U3.
Resolution

VMware recommends upgrading the Dell ESXi to the 6.7.0.41000 build or higher to resolve this issue.
Before applying the patch, make sure no backups/restores are in progress. To ensure vRanger is inactive while the upgrades are performed, stop the Quest vRanger service until the upgrade process is complete.

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