Set-SCVMHostCluster
Set-SCVMHostCluster
Modifies the properties of a virtual machine host cluster managed by VMM.
構文
Parameter Set: Default
Set-SCVMHostCluster [-VMHostCluster] <HostCluster> [-ClusterReserve <UInt32]> ] [-Description <String> ] [-JobGroup <Guid]> ] [-JobVariable <String> ] [-PROTipID <Guid]> ] [-RunAsynchronously] [-SetQuorumDisk <ClientObject> ] [-SetQuorumNodeMajority] [-VMHostManagementCredential <VMMCredential> ] [ <CommonParameters>]
詳細説明
The Set-SCVMHostCluster cmdlet modifies the properties of a host cluster managed by Virtual Machine Manager (VMM). Properties that you can modify include changing the cluster reserve setting.
The cluster reserve setting specifies the number of host failures that a host cluster can sustain before VMM considers the cluster to be over-committed. An over-committed host cluster is one that cannot withstand the specified number of host failures and still keep all of the virtual machines in the cluster running.
Virtual Machine Manager uses the following processes to determine over-commitment:
-- Host Placement. The placement process calculates whether adding a new virtual machine to the host cluster will over-commit the host cluster and, if so, placement stops recommending the deployment of additional virtual machines on hosts in that cluster.
-- Cluster Refresher. The host cluster refresher calculates, at periodic intervals, whether a host cluster is over-committed or not based on the following events:
---- A change in the value specified for the ClusterReserve parameter.
---- The failure or removal of nodes from the host cluster.
---- The addition of nodes to the host cluster.
---- The discovery of new virtual machines on nodes in the host cluster.
The following examples illustrate how over-commitment works:
-- Example of over-commitment when all nodes are functioning:
If you specify a cluster reserve of 2 for an 8-node host cluster, and all 8 nodes are functioning, the host cluster is over-committed if any combination of 6 (8 minus 2) nodes lacks the capacity to accommodate existing virtual machines.
-- Example of over-commitment when some nodes are not functioning:
If you specify a cluster reserve of 2 for an 8-node host cluster, but only 5 nodes are functioning, the host cluster is over-committed if any combination of 3 (5 minus 2) nodes lacks the capacity to accommodate existing virtual machines.
パラメーター
-ClusterReserve<UInt32]>
Specifies the number of host failures that a host cluster can sustain before VMM designates the cluster as over-committed. The default value is 1.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-Description<String>
States a description for the specified object.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-JobGroup<Guid]>
Specifies an identifier for a series of commands that will run as a set just before the final command that includes the same job group identifier runs.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-JobVariable<String>
Specifies that job progress is tracked and stored in the variable named by this parameter.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-PROTipID<Guid]>
Specifies the ID of the PRO tip that triggered this action. This allows for auditing of PRO tips.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-RunAsynchronously
Indicates that the job runs asynchronously so that control returns to the command shell immediately.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-SetQuorumDisk<ClientObject>
Specifies a disk to use as the quorum disk for the cluster.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-SetQuorumNodeMajority
Sets the quorum mode to Node Majority for the cluster.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
-VMHostCluster<HostCluster>
Specifies a VMM host cluster object.
エイリアス |
none |
必須? |
true |
位置は? |
1 |
既定値 |
none |
パイプライン入力を許可する |
True (ByValue) |
ワイルドカード文字を許可する |
false |
-VMHostManagementCredential<VMMCredential>
This parameter is obsolete.
エイリアス |
none |
必須? |
false |
位置は? |
named |
既定値 |
none |
パイプライン入力を許可する |
false |
ワイルドカード文字を許可する |
false |
<CommonParameters>
このコマンドレットは次の共通パラメーターをサポートします。-Verbose、-Debug、-ErrorAction、-ErrorVariable、-OutBuffer、-OutVariable.詳細については、以下を参照してください。 about_CommonParameters (https://go.microsoft.com/fwlink/p/?LinkID=113216)。
入力
入力型は、コマンドレットにパイプできるオブジェクトの型です。
出力
出力型は、コマンドレットによって生成されるオブジェクトの型です。
- VMHostCluster
例
Example 1: Change the setting for the cluster reserve for a host cluster
The first command gets the host cluster object named VMHostCluster01.Contoso.com, and then stores the object in the $VMHostCluster variable.
The second command changes value for the cluster reserve for host cluster VMHostCluster01 to 2.
PS C:\> $VMHostCluster = Get-SCVMHostCluster -Name "VMHostCluster01.Contoso.com"
PS C:\> Set-SCVMHostCluster -VMHostCluster $VMHostCluster -ClusterReserve 2