Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays Administrator's Guide

When viewing a performance graph, you might see objects marked with an asterisk (*). An asterisk indicates that the object is no longer valid. When an object becomes invalid, the performance graph contains missing data points. The data that was collected before the object became invalid is still available for viewing.

If the invalid object returns, the Performance Monitor resumes collecting data for the object.

If the invalid object represents a deleted object, its performance graph no longer updates. When this event happens, you should redefine the graph to monitor a valid object. It is possible to have two objects with the same name. Two virtual disks can have the same name if you delete a virtual disk and then later create another virtual disk with the same name. The original virtual disk’s name contains an asterisk indicating that the virtual disk no longer exists. The new virtual disk has the same name, but without an asterisk. Two physical disks will have the same name if you replace a physical disk. The original physical disk’s name contains an asterisk indicating that it is invalid and no longer exists. The new physical disk has the same name without an asterisk.