AppSync：基于 UNIX 的拷贝可能会遇到以下错误：“未能卸载拷贝，出现错误”

正在使用的装载主机是 AIX 主机。

卸载作未完成，并出现以下事件：

<DATE & TIME>,Unmount Copy,33a8372e-915d-4122-a8a7-4021dc89255c,MILE_000005,<AppSync Server>,Unmount Copy phase for <service plan> completed with errors
<DATE & TIME>,Unmount Copy,33a8372e-915d-4122-a8a7-4021dc89255c,VM_000073,d<AppSync Server> ,Failed to unmount the copy with error: Unmount operation failed. Make sure the filesystem(s) are not in use.

在服务器日志中，可以看到卸载失败异常，后跟发送到主机的卸载请求并收到响应。

<DATE & TIME> ERROR [Thread-412 (ActiveMQ-client-global-threads)] [com.emc.archway.commands.serviceplan.workflow.WorkflowDeployPhaseCommandBean] [AppSync Server] [] 614a4cfc-c3fb-4ec8-85f6-b29a7c6047d5->>> Exception Occurred: UnmountFailedException, Message: Unmount operation failed.

代理程序日志显示以下内容：

<DATE & TIME> acputil.py[671]:execute() Info:Running command: umount <File System >
<DATE & TIME> host.py[3919]:unMount() error: ['umount: error unmounting [Device]: Device busy']
<DATE & TIME> host.py[3920]:unMount() errorcode: 1
<DATE & TIME> host.py[3921]:unMount() Info:couldn't unmount the filesystem <File System>
<DATE & TIME> host.py[3926]:unMount() Info:FileSystem is busy, can't unmount the file system
<DATE & TIME> host.py[3812]:unmountFilesystem() error:
<DATE & TIME> host.py[3915]:unMount() Info:Running umount command ['umount', '/ora/oemxxx/xxxxx']
<DATE & TIME> host.py[3847]:unmountFilesystem() Info:Some of the filesystems couldn't be Unmounted, so can't deport the VG <VG Name>

在卸载作期间，文件系统处于使用状态。

转至装载主机。运行 fuser 命令以确定哪个进程或应用程序保存文件系统。
如果需要，请联系 UNIX 管理员寻求帮助。

确定后，等待它完成或停止或终止该进程或应用程序以释放文件系统。
然后重新运行卸载作。它成功了。