VMware HADRS Configuration SOP.docx

1、VMware HA DRS Configuration SOPVMware VI3 ESX3.5,VC2.5 VMware HA & DRS Configuration SOP Author : Ted Kao Date : 2009.4.8 Version : 1.2Creating a ClusterTo start the cluster wizard1 Rightclick the datacenter or folder and choose New Cluster.2 Choose cluster settings as prompted by the wizard.Choosin

2、g Cluster FeaturesThe first panel in the New Cluster wizard allows you to specify the following information:􀂄 Name Specifies the name of the cluster. This name appears in the VI Client inventory panel. You must specify a name to continue with cluster creation.􀂄 Enable VMware HA If

3、this box is selected, VirtualCenter restarts running virtual machines on a different host when the source host fails.􀂄 Enable VMware DRS If this box is selected, DRS uses load distribution information for initial placement and load balancing recommendations or to place and migrate virtual m

4、achines automatically.Adding Managed Hosts to a ClusterThe VirtualCenter inventory panel displays all clusters and all hosts managed by that VirtualCenter Server.To add a managed host to a cluster1 Select the host from either the inventory or list view.2 Drag the host to the target cluster object.3

5、The wizard asks what you want to do with the hosts virtual machines and resource pools. 􀂄 If you choose Put this hosts virtual machines in the clusters root resource pool, VirtualCenter removes all existing resource pools of the host and the virtual machines in the hosts hierarchy are all a

6、ttached to the root. 􀂄 If you choose Create a new resource pool for this hosts virtual machines and resource pools, VirtualCenter creates a toplevel resource pool that becomes a direct child of the cluster and adds all children of the host to that new resource pool. You can supply a name fo

7、r that new toplevel resource pool.Failover CapacityWhen you enable a cluster for HA, the New Cluster wizard prompts you for the number of hosts for which you want failover capacity. This number is shown as the Configured Failover Capacity in the VI Client. HA uses this number to determine if there a

8、re enough resources to power on virtual machines in the cluster.VMware HA OptionsOption DescriptionAdmission In this box you can specify the failover capacity and Control enable or disable admission control, which is based on that number. Number of host failures the cluster can tolerateSpecifies the

9、 failover capacity, the number of host failures for which you want to guarantee failover. You can then either enable or disable HA Admission Control. The two choices are: 􀂄 Do not power on virtual machines if they violate availability constraints. This option prevents virtual machines from

10、being powered on if they exceed the failover capacity. 􀂄 Allow virtual machines to be powered on even if they violate availability constraints. Virtual machines are permitted to power on, even if they exceed the failover capacity.VMware HA Options ( Continued ) Option DescriptionVM Restart

11、Determines the order in which virtual machines are Priority restarted upon host failure. Values are: Disabled, Low, Medium, High. The default is Medium. If Disabled is selected, HA is disabled for the virtual machines. This is a default setting for the cluster. You can customize this property for in

12、dividual virtual machines.Host Isolation Determines what happens when a host in an HA cluster Response loses its console network connection but continues running. Values are: Leave VM powered on (the default), Power off VM, and Shut down VM. This is a default setting for the cluster. You can customi

13、ze this property for individual virtual machines.Virtual Machine The Monitoring sensitivity setting determines the Monitoring failure interval after which a virtual machine is restarted if its heartbeat is not received by the host.Selecting a Virtual Machine Swapfile LocationThis wizard page allows

14、you to select a location for the swapfiles of your virtual machines. You can either store a swapfile in the same directory as the virtual machine itself, or a datastore specified by the host (hostlocal swap).Selecting Automation LevelIf you selected the Enable VMware DRS option in the second panel o

15、f the wizard, the VMware DRS panel allows you to select the default level of automation.DRS Automation Levels Initial Placement MigrationManual Display of recommended Migration recommendation is host(s). displayed.Partially Automatic placement. Migration recommendation is Automated displayed.Fully A

16、utomatic placement. Migration recommendations Automated are executed automatically.Migration ThresholdThe migration threshold allows you to specify which recommendations are applied when the cluster is in fully automated mode. You can move the slider to use one of five levels, ranging from “Conserva

17、tive,” which makes the smallest number of migrations, to “Aggressive,” which makes the largest number of migrations. The five migration levels apply recommendations based on their assigned star ratings.Viewing Cluster InformationThe cluster Summary page displays summary information for the cluster.C

18、luster Summary TabCluster Summary InformationPanel DescriptionGeneral Includes information about the cluster: VMware DRS Enabled or Disabled. VMware HA Enabled or Disabled. Total CPU Resources Total CPU resources available for the cluster. The sum of all resources available from the hosts. Total Mem

19、ory Total memory for the cluster. The sum of all resources available from the hosts. Number of Hosts Number of hosts in the cluster. This number can change if you add or remove hosts. Total Processors Sum of all processors of all hosts. Number of Virtual Machines Total of all virtual machines in the

20、 cluster or any of its child resource pools. Includes virtual machines that are not currently powered on. Total Migrations Total migrations performed by DRS or by the user since the cluster was created.Commands Allows you to call commonly used commands for a cluster. New Virtual Machine Displays a N

21、ew Virtual Machine wizard. The wizard prompts you to choose one of the hosts in the cluster. Add Host Adds a host not currently managed by the same VirtualCenter Server. To add a host managed by the same VirtualCenter Server, drag and drop the host in the inventory panel. New Resource Pool Creates a

22、 child resource pool of the cluster. Edit Settings Displays the clusters Edit Settings dialog box.Cluster Summary Information (Continued)Panel DescriptionVMware HA Displays the admission control setting, current failover capacity, and configured failover capacity for clusters enabled for HA. The sys

23、tem updates the current failover capacity whenever a host has been added to or removed from the cluster or when virtual machines have been powered on or powered off.VMware DRS Displays the default automation level, migration threshold, and outstanding migration recommendations for the cluster. Migra

24、tion recommendations appear if you select the DRS Recommendations tab. Default automation level and migration threshold are set during cluster creation.DRS Resource Displays two realtime histograms, Utilization Percent Distribution and Percent of Entitled Resources Delivered. The charts illustrate how balanced a cluster is.