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示例：配置存储 - 存储级联

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示例将具体说明如何一次一步配置复制关系。您可以使用本示例中配置的存储-存储级联部署来保留标有的快照数量超过251个 my-weekly。

开始之前

  • 源和目标集群以及 SVM 必须建立对等关系。

  • 您必须运行 ONTAP 9.2 或更高版本。早期的 ONTAP 版本不支持存储 - 存储级联。

关于此任务

此示例假设以下条件：

  • 您已使用SnapMirror标签、 my-weekly`和 `my-monthly`在源集群上配置快照 `my-daily。

  • 您已在二级和三级目标集群上配置名为的目标卷 volA。

  • 您已在二级和三级目标集群上配置名为的复制作业计划 my_snapvault。

此示例显示了如何基于两个自定义策略创建复制关系：

  • 此 `snapvault_secondary`策略会在二级目标集群上保留7个每日快照、52个每周快照和180个每月快照。

  • `snapvault_tertiary policy`在三级目标集群上保留250个每周快照。

步骤

  1. 在二级目标集群上、创建 `snapvault_secondary`策略：

    cluster_secondary::> snapmirror policy create -policy snapvault_secondary -type vault -comment "Policy on secondary for vault to vault cascade" -vserver svm_secondary

  2. 在二级目标集群上、为策略定义 `my-daily`规则：

    cluster_secondary::> snapmirror policy add-rule -policy snapvault_secondary -snapmirror-label my-daily -keep 7 -vserver svm_secondary

  3. 在二级目标集群上、为策略定义 `my-weekly`规则：

    cluster_secondary::> snapmirror policy add-rule -policy snapvault_secondary -snapmirror-label my-weekly -keep 52 -vserver svm_secondary

  4. 在二级目标集群上、为策略定义 `my-monthly`规则：

    cluster_secondary::> snapmirror policy add-rule -policy snapvault_secondary -snapmirror-label my-monthly -keep 180 -vserver svm_secondary

  5. 在二级目标集群上，验证策略：

    cluster_secondary::> snapmirror policy show snapvault_secondary -instance

                         Vserver: svm_secondary
      SnapMirror Policy Name: snapvault_secondary
      SnapMirror Policy Type: vault
                Policy Owner: cluster-admin
                 Tries Limit: 8
           Transfer Priority: normal
   Ignore accesstime Enabled: false
     Transfer Restartability: always
 Network Compression Enabled: false
             Create Snapshot: false
                     Comment: Policy on secondary for vault to vault cascade
       Total Number of Rules: 3
                  Total Keep: 239
                       Rules: SnapMirror Label     Keep  Preserve Warn Schedule Prefix
                              ----------------     ----  -------- ---- -------- ------
                              my-daily                7  false       0 -        -
                              my-weekly              52  false       0 -        -
                              my-monthly            180  false       0 -        -

  6. 在二级目标集群上，创建与源集群的关系：

    cluster_secondary::> snapmirror create -source-path svm_primary:volA -destination-path svm_secondary:volA -type XDP -schedule my_snapvault -policy snapvault_secondary

  7. 在二级目标集群上，初始化与源集群的关系：

    cluster_secondary::> snapmirror initialize -source-path svm_primary:volA -destination-path svm_secondary:volA

  8. 在三级目标集群上、创建 `snapvault_tertiary`策略：

    cluster_tertiary::> snapmirror policy create -policy snapvault_tertiary -type vault -comment "Policy on tertiary for vault to vault cascade" -vserver svm_tertiary

  9. 在三级目标集群上、为策略定义 `my-weekly`规则：

    cluster_tertiary::> snapmirror policy add-rule -policy snapvault_tertiary -snapmirror-label my-weekly -keep 250 -vserver svm_tertiary

  10. 在三级目标集群上，验证策略：

    cluster_tertiary::> snapmirror policy show snapvault_tertiary -instance

                         Vserver: svm_tertiary
      SnapMirror Policy Name: snapvault_tertiary
      SnapMirror Policy Type: vault
                Policy Owner: cluster-admin
                 Tries Limit: 8
           Transfer Priority: normal
   Ignore accesstime Enabled: false
     Transfer Restartability: always
 Network Compression Enabled: false
             Create Snapshot: false
                     Comment: Policy on tertiary for vault to vault cascade
       Total Number of Rules: 1
                  Total Keep: 250
                       Rules: SnapMirror Label     Keep  Preserve Warn Schedule Prefix
                              ----------------     ----  -------- ---- -------- ------
                              my-weekly             250  false       0 -        -

  11. 在三级目标集群上，创建与二级集群的关系：

    cluster_tertiary::> snapmirror create -source-path svm_secondary:volA -destination-path svm_tertiary:volA -type XDP -schedule my_snapvault -policy snapvault_tertiary

  12. 在三级目标集群上，初始化与二级集群的关系：

    cluster_tertiary::> snapmirror initialize -source-path svm_secondary:volA -destination-path svm_tertiary:volA