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SM-BC 升级和还原注意事项

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您应了解升级和还原 SM-BC 配置的要求。

升级

在配置和使用 SM-BC 之前,您必须将源集群和目标集群上的所有节点升级到 ONTAP 9.8 或更高版本。"在 ONTAP 集群上更新软件"

注 混合 ONTAP 9.7 和 ONTAP 9.8 集群不支持 SM-BC 。

从 ONTAP 9.8 还原到 ONTAP 9.7

从 ONTAP 9.8 还原到 ONTAP 9.7 时,必须注意以下事项:

  • 如果集群托管的是 SM-BC 目标,则在中断并删除此关系之前,不允许还原到 ONTAP 9.7 。

  • 如果集群托管的是 SM-BC 源,则在释放此关系之前,不允许还原到 ONTAP 9.7 。

  • 还原到 ONTAP 9.7 之前,必须删除用户创建的所有自定义 SM-BC SnapMirror 策略。

步骤
  1. 从 SM-BC 关系中的一个集群执行还原检查:

    cluster ::: * > system node revert-to -version 9.7 -check-only

    示例

    cluster::*> system node revert-to -version 9.7 -check-only
    Error: command failed: The revert check phase failed. The following issues must be resolved before revert can be completed. Bring the data LIFs down on running vservers. Command to list the running vservers: vserver show -admin-state running Command to list the data LIFs that are up: network interface show -role data -status-admin up Command to bring all data LIFs down: network interface modify {-role data} -status-admin down
    Disable snapshot policies.
        Command to list snapshot policies: "snapshot policy show".
        Command to disable snapshot policies: "snapshot policy modify -vserver
       * -enabled false"
    
       Break off the initialized online data-protection (DP) volumes and delete
       Uninitialized online data-protection (DP) volumes present on the local
       node.
        Command to list all online data-protection volumes on the local node:
       volume show -type DP -state online -node <local-node-name>
        Before breaking off the initialized online data-protection volumes,
       quiesce and abort transfers on associated SnapMirror relationships and
       wait for the Relationship Status to be Quiesced.
        Command to quiesce a SnapMirror relationship: snapmirror quiesce
        Command to abort transfers on a SnapMirror relationship: snapmirror
       abort
        Command to see if the Relationship Status of a SnapMirror relationship
       is Quiesced: snapmirror show
        Command to break off a data-protection volume: snapmirror break
        Command to break off a data-protection volume which is the destination
       of a SnapMirror relationship with a policy of type "vault": snapmirror
       break -delete-snapshots
        Uninitialized data-protection volumes are reported by the "snapmirror
       break" command when applied on a DP volume.
        Command to delete volume: volume delete
    
       Delete current version snapshots in advanced privilege level.
        Command to list snapshots: "snapshot show -fs-version 9.8"
        Command to delete snapshots: "snapshot prepare-for-revert -node
       <nodename>"
    
       Delete all user-created policies of the type active-strict-sync-mirror
       and active-sync-mirror.
       The command to see all active-strict-sync-mirror and active-sync-mirror
       type policies is:
        snapmirror policy show -type
       active-strict-sync-mirror,active-sync-mirror
       The command to delete a policy is :
        snapmirror policy delete -vserver <vserver-name> -policy <policy-name>

有关还原集群的信息,请参见 "还原 ONTAP"