Users Guide

Figure 2. PRO Tips
Alternatively, if you select the Show this window when new PRO Tips are created option in the PRO Tip window, the window
automatically opens on the VMM console when a PRO Tip is generated.
The PRO Tipwindow displays information such as source, tip, and state of the PRO Tip in a tabular format. The window also displays
description of the problem that triggered the alert, the cause, and the suggested remedial action for recovery.
Implementing Recovery Actions
The PRO Tip window provides an option to either implement or dismiss the recommended action. If you select Implement, VMM
implements one of the recovery tasks described below, based on the nature of the alert.
Placing the Host in Restrict Mode
Placing a host in Restrict mode prevents assignment of workload to the host until the problem is solved. In this mode, the host still
receives alerts on the Operations Manager and associated PRO Tips on the VMM.
The system health conditions that can trigger the maintenance are non-critical hardware alerts on the virtualization host such as, ambient
chassis temperature warning on a PowerEdge virtualization host system.
Migration of Virtual Machines
The PRO Tip management pack uses VMM algorithms to move VMs from the aected system to a healthy one. For more information on
the VMM algorithms, see the Microsoft documentation at Technet.microsoft.com/en-us/library/hh801542.aspx.
The requirements for identifying a healthy system and moving the VMs are as follows:
• Hardware requirements—Requirements that a host must meet to run VMs. For example, sucient memory and storage
• Software requirements—Requirements if met by the host allows a virtual machine to perform more optimally. For example, CPU
allocation, network bandwidth, network availability, disk IO bandwidth, and free memory.
VMM assigns a star rating to hosts in a range of zero to ve. If a hardware requirement is not met, for example, insucient hard disk and
memory capacity, the host automatically gets zero star and VMM does not allow you to place a VM on that host.
The system health conditions that trigger migration of VMs are hardware failure alerts on a virtualization host, such as virtual disk failure
and predictive drive error. Dell EMC PRO Pack migrates VMs with the Running status. It does not migrate VMs with status such as Stop,
Pause, and Saved. This is based on the star rating of the associated servers.
After you successfully implement the recovery task, the following changes takes place:
• The status of PRO Tip changes to Resolved and the PRO Tip entry moves out of the PRO Tip window.
• Corresponding alert disappears in the Operations Manager Alert View.
Using Dell EMC Server Performance Resource Optimization Pack
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