备份软件对虚拟机备份不成功，报错：There are too many existing backup snapshots on virtual machine

下面是备份软件报错信息：
错误代码： [72:106] 说明： There are too many existing backup snapshots on virtual machine [虚拟机名称]. Backup snapshots are being cleaned up, however manual intervention may be required to ensure that all snapshots are removed. This may indicate that the storage is unable to keep up with the IO activity of the virtual machine during a backup. Source: cv-server, Process: vsbkp

vsphere中报错信息为：
移除快照，状态：对象已删除或未完全创建。