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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。您可以使用此示例中配置的存储 - 存储级联部署来保留超过 251 个标有 my-weekly 的 Snapshot 副本。

您需要的内容

  • 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：

  • 您已在源集群上为 Snapshot 副本配置 SnapMirror 标签 my-daily ， my-weekly 和 my-monthly 。

  • 您已在二级和三级目标集群上配置名为 "`Vola` " 的目标卷。

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

此示例显示了如何基于两个自定义策略创建复制关系：

  • " snapvault_secondary " 策略会在二级目标集群上保留 7 个每日 Snapshot 副本， 52 个每周 Snapshot 副本和 180 个每月 Snapshot 副本。

  • " snapvault_tertiary policy " 会在三级目标集群上保留 250 个每周 Snapshot 副本。

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