Course Content
VMware vSphere: Install, Configure, Manage Content
0/1
Introduction to vSphere and the Software Defined Data Center
As a vSphere administrator, you must be familiar with the components on which vSphere is based. You must also understand the following concepts: Virtualization, the role of the ESXi hypervisor in virtualization and virtual machines Fundamental vSphere components and the use of vSphere in the software-defined data center Use of vSphere clients to administer and manage vSphere environments
0/4
Virtual Machines
You can create a virtual machine in several ways. Choosing the correct method can save you time and make the deployment process manageable and scalable.
0/3
vCenter Server
vCenter Server helps you centrally manage multiple ESXi hosts and their virtual machines. If you do not properly deploy, configure, and manage vCenter Server Appliance, your environment might experience reduced administrative efficiency or ESXi host and virtual machine downtime.
0/8
Configuring and Managing Virtual Networks
When you configure ESXi networking properly, virtual machines can communicate with other virtual, and physical, machines. In this way, remote host management and IP-based storage operate effectively.
0/2
Configuring and Managing Virtual Storage
Understanding the available storage options helps you set up your storage according to your cost, performance, and manageability requirements. You can use shared storage for disaster recovery, high availability, and moving virtual machines between hosts.
0/6
Virtual Machine Management
Virtual machines are the foundation of your virtual infrastructure. Managing VMs effectively requires skills in creating templates and clones, modifying VMs, migrating VMs, taking snapshots, and protecting the VMs through replication and backups.
0/8
Resource Management and Monitoring
Although the VMkernel works proactively to avoid resource contention, maximizing performance requires both analysis and ongoing monitoring. Developing skills in resource management, you can dynamically reallocate resources so that you can use available capacity more efficiently.
0/5
vSphere Clusters
Most organizations rely on computer-based services like email, databases, and web-based applications. The failure of any of these services can mean lost productivity and revenue. By understanding and using vSphere HA, you can configure highly available, computer-based services, which are important for an organization to remain competitive in contemporary business environments. And by developing skills in using vSphere DRS, you can improve service levels by guaranteeing appropriate resources to virtual machines.
0/6
vSphere Lifecycle Management
Managing the life cycle of vSphere involves keeping vCenter Server and ESXi hosts up to date and integrated with other VMware and third-party solutions. To achieve these goals, you must understand how to use the new features provided by vSphere Lifecycle Manager, namely, clusterlevel management of ESXi hosts and the vCenter Server Update Planner.
0/5
VMware vSphere: Install, Configure, Manage
About Lesson

Using Alarms in vSphere

Learner Objectives

After completing this lesson, you should be able to meet the following objectives:

  • Use predefined alarms in vCenter Server
  • View and acknowledge alarms
  • Create custom alarms

About Alarms

An alarm is a notification that is sent in response to an event or condition that occurs with an object in the inventory.

Predefined Alarms (1)

You can access many predefined alarms for various inventory objects, such as hosts, virtual machines, datastores, networks, and so on.

Predefined Alarms (2)

You can edit predefined alarms, or you can make a copy of an existing alarm and modify the settings as needed.

Creating a Custom Alarm

In addition to using predefined alarms, you can create custom alarms in the vSphere Client.

Defining the Alarm Target Type

On the Name and Targets page, you name the alarm, give it a description, and select the type of inventory object that this alarm monitors.

Defining the Alarm Rule: Trigger (1)

An alarm rule must contain at least one trigger. A trigger can monitor the current condition or state of an object, for example:

  • A VM’s current snapshot is more than 2 GB.
  • A host is using 90 percent of its total memory.
  • A datastore is disconnected from all hosts.

A trigger can monitor events that occur in response to operations occurring on a managed object, for example:

  • The health of a host’s hardware changes.
  • A license expires in the data center.
  • A host leaves the distributed switch.

Defining the Alarm Rule: Trigger (2)

You select and configure the events, states, or conditions that trigger the alarm.

Defining the Alarm Rule: Setting the Notification

You configure the notification method to use when the alarm is triggered. The methods are sending an email, sending an SNMP trap, or running a script.

Defining the Alarm Reset Rules

  • You can select and configure the events, states, or conditions to reset the alarm to normal.
  • Sometimes, as in this example, you can access only one option to reset the alarm.

Enabling the Alarm

On the Review page, the new alarm definition is enabled by default.

Configuring vCenter Server Notifications

If you use email or SNMP traps as the notification method, you must configure vCenter Server to support these notification methods.

Review of Learner Objectives

After completing this Using Alarms in vSphere lesson, you should be able to meet the following objectives:

  • Use predefined alarms in vCenter Server
  • View and acknowledge alarms
  • Create custom alarms

 

Key Points

  • An ESXi host uses memory overcommit techniques to allow the overcommitment of memory while possibly avoiding the need to page memory out to disk.
  • The VMkernel balances processor time to guarantee that the load is spread smoothly across processor cores in the system.
  • You can apply reservations, limits, and shares against a VM to control the amount of CPU and memory resources granted.
  • The key to interpreting performance data is to observe the range of data from the perspective of the guest operating system, the virtual machine, and the host.
  • You use alarms to monitor the vCenter Server inventory objects and send notifications when selected events or conditions occur.
Join the conversation