一樣負載平衡概觀Virtual Machine Load Balancing overview

適用於:Windows Server(以每年次通道)、Windows Server 2016Applies to: Windows Server (Semi-Annual Channel), Windows Server 2016

按鍵考量的私人雲端部署,是大寫費用 (<abbr title="大寫費用A key consideration for private cloud deployments is the capital expenditure (CapEx) 才能進入執行。CapEx) required to go into production. 常見的私人雲端部署,以避免置中容量實際澳地區的山峰資料傳輸期間新增冗餘但這增加<abbr title="大寫費用It is very common to add redundancy to private cloud deployments to avoid under-capacity during peak traffic in production, but this increases CapExCapEx. 需要冗餘的會受到裝載某些節點虛擬更多的電腦不平衡私人雲朵 (<abbr title="虛擬電腦The need for redundancy is driven by unbalanced private clouds where some nodes are hosting more Virtual Machines (Vm) 與其他人的充分 (例如剛 rebooted 伺服器)。VMs) and others are underutilized (such as a freshly rebooted server).

何謂一樣負載平衡?What is Virtual Machine Load Balancing?

VM負載平衡是,可讓您最佳化的節點容錯移轉叢集使用率 Windows Server 2016 的方塊中新功能。VM Load Balancing is a new in-box feature in Windows Server 2016 that allows you to optimize the utilization of nodes in a Failover Cluster. 它辨識覆致力的節點並重新散發<abbr title="虛擬電腦It identifies over-committed nodes and re-distributes Vm在認可節點那些節點。VMs from those nodes to under-committed nodes. 部分依照此功能的部分如下:Some of the salient aspects of this feature are as follows:

  • 0-中斷方案是:<abbr title="虛擬電腦It is a zero-downtime solution: Vm的動態移轉到閒置節點。VMs are live-migrated to idle nodes.
  • 與現有叢集環境順暢整合: 失敗原則,例如反相關性網域錯誤,可能的擁有者會生效。Seamless integration with your existing cluster environment: Failure policies such as anti-affinity, fault domains and possible owners are honored.
  • Heuristics 為 [平衡]:<abbr title="一樣Heuristics for balancing: VM記憶體不足壓力時和 CPU 使用率節點。VM memory pressure and CPU utilization of the node.
  • 細微控制: 預設的支援。Granular control: Enabled by default. 隨選或定期可以啟動。Can be activated on-demand or at a periodic interval.
  • 侵略閾值: 三個閾值可根據您的部署的特性。Aggressiveness thresholds: Three thresholds available based on the characteristics of your deployment.

重要訊息中的功能The feature in action

新增了一個新的節點容錯移轉叢集A new node is added to your Failover Cluster

新的節點新增至您容錯移轉叢集的圖形

當您新增新的容量容錯移轉叢集,<abbr title="一樣When you add new capacity to your Failover Cluster, the VM負載平衡功能自動餘額容量,從現有的節點,以 [新增] 節點以下列順序:VM Load Balancing feature automatically balances capacity from the existing nodes, to the newly added node in the following order:

  1. 在現有的節點中容錯移轉叢集評估壓力。The pressure is evaluated on the existing nodes in the Failover Cluster.
  2. 都會所有節點超過臨界值。All nodes exceeding threshold are identified.
  3. 若要判斷平衡的優先順序都會節點以最高壓力。The nodes with the highest pressure are identified to determine priority of balancing.
  4. Vm有 Live 移轉 (無時間) 節點超過容錯移轉叢集中新加入節點臨界值。VMs are Live Migrated (with no down time) from a node exceeding threshold to a newly added node in the Failover Cluster.

週期性負載平衡Recurring load balancing

圖形週期性 VM 負載平衡

設定為 [平衡] 定期,叢集節點上的壓力評估平衡每 30 分鐘的時間。When configured for periodic balancing, the pressure on the cluster nodes is evaluated for balancing every 30 minutes. 或者,壓力可評估的視。Alternately, the pressure can be evaluated on-demand. 以下是流程步驟:Here is the flow of the steps:

  1. 壓力評估私人雲端中的所有節點上。The pressure is evaluated on all nodes in the private cloud.
  2. 都會所有節點超過閾值來改善,以及低於臨界值。All nodes exceeding threshold and those below threshold are identified.
  3. 若要判斷平衡的優先順序都會節點以最高壓力。The nodes with the highest pressure are identified to determine priority of balancing.
  4. Vm有 Live 移轉 (無時間) 節點超過至最小臨界值下節點臨界值。VMs are Live Migrated (with no down time) from a node exceeding the threshold to node under minimum threshold.

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