Symptom
Possible Causes
Processes of the operating system, such as Taskmgr.exe, svchost.exe, and System, are using the disk, causing the detaching to fail.
Solutions
1. Check whether the disk is in offline status.
2. View the processes that use the disk in the Event Viewer. End them and try to detach the disk again.
Troubleshooting
Note:
This document uses a CVM instance with Windows Server 2012 R2 DataCenter 64-bit English installed as an example. Note that the steps may vary by operating system version.
Checking the disk status
2. On the desktop, right-click in the bottom-left corner. 3. In the pop-up menu, select Disk Management.
4. In the Disk Management window, check whether the cloud disk to be detached is in offline status.
If so, proceed to the next step.
If not, right-click the status area of the disk and click Offline in the pop-up menu.
Locating and ending processes
1. On the desktop, right-click in the bottom-left corner. 2. In the pop-up menu, select Event Viewer.
3. In the Event Viewer window, select Windows Logs > System on the left.
4. In the system logs, click to view the alarm information and determine that the process using the disk is Taskmgr.exe.
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