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由于 BRE/LRSE 限制导致 SnapMirror 或卷移动性能缓慢和吞吐量低

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适用于

  • ONTAP 9
  • SnapMirror
  • 块复制引擎(BRE)
  • 具有存储效率的逻辑复制 (LRSE)
  • 卷移动
  • CBS(Cloud Backup Service)

问题描述

  • 由于复制引擎限制而导致 SnapMirror 传输期间的低吞吐量
  • 首先验证以下项目是否已作为潜在问题被消除
    • 避免一次运行太多 SnapMirror 传输
    • 分散 SnapMirror 传输以减少影响
    • 在用户工作负载较低和 CPU 活动较低的时候启动 SnapMirror 传输
    • 检查是否正在为 SnapMirror 使用全局节流机制
    • 如果复制流量通过 WAN,您可以为这些 SnapMirror 策略启用网络压缩以提高性能
      • 注:在 CPU 利用率已经很高的情况下,不要使用网络压缩
  • 由于源控制器上的复制引擎限制,在 CBS 传输到 Azure 等云供应商期间的吞吐量较低。 

 

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