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使用 ONTAP 功能计划 SnapMirror 更新的方式有哪些不同?

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适用场景

  • ONTAP 9.7及更高版本
  • SnapMirror
  • SnapVault

问题解答

  • 自ONTAP 9.7以来、可通过两种方法按计划进行SnapMirror更新:
将计划作为SnapMirror关系的参数:
  • 在创建关系期间、可以将cron计划设置为SnapMirror变量:

 cluster1::> snapmirror create -source-path test: ?
  { [-destination-path] {<[vserver:][volume]>|<[[cluster:]//vserver/]volume>|<hostip:/lun/name>|<hostip:/share/share-name>|<[vserver:]/cg/[cgname]>}  Destination Path
  | [ -destination-cluster <cluster_name> ]    Destination Cluster (default: cluster1)
   [-destination-vserver] <vserver name>    Destination Vserver
   [[-destination-volume] <volume name>] }   Destination Volume (default: "")
  [[-type] {DP|LS|XDP|RST|TDP}]          Relationship Type
  [ -vserver <vserver name> ]          Managing Vserver
  [ -schedule <text> ]              SnapMirror Schedule
  [ -policy <snapmirror policy> ]         SnapMirror Policy
  [ -tries {<integer>|unlimited} ]         Tries Limit
  [ -throttle|-k {<integer>|unlimited} ]      Throttle (KB/sec) (default: unlimited)
  [ -cg-item-mappings {<source volume>:@<destination volume>|<source item path>:@<destination item path>}, ... ]                                Consistency Group Item Mappings
  [ -identity-preserve {true|false} ]       Identity Preserve Vserver DR (default: false)
  [ -is-auto-expand-enabled {true|false} ]    Is Auto Expand Enabled

  • 在通过命令行界面修改关系期间、可以将cron计划设置为SnapMirror变量:

cluster1::> snapmirror modify -source-path test: ?
  { [-destination-path] {<[vserver:][volume]>|<[[cluster:]//vserver/]volume>|<hostip:/lun/name>|<hostip:/share/share-name>|<[vserver:]/cg/[cgname]>}  Destination Path
  | [ -destination-cluster <cluster_name> ]   Destination Cluster
   [-destination-vserver] <vserver name>    Destination Vserver
   [-destination-volume] <volume name> }    Destination Volume
  [[-vserver] <vserver name>]          Managing Vserver
 [ -schedule <text> ]              SnapMirror Schedule
  [ -policy <snapmirror policy> ]        SnapMirror Policy
  [ -tries {<integer>|unlimited} ]        Tries Limit
  [ -throttle|-k {<integer>|unlimited} ]      Throttle (KB/sec)
  [ -is-auto-expand-enabled {true|false} ]    Is Auto Expand Enabled
  [ -foreground|-w [true] ]           Foreground Process

将 计划置于SnapMirror策略之上:
  • 您可以在 ONTAP系统管理器中为SnapMirror策略添加计划:

clipboard_eb110d355812557aee3b60ae0c34db662.png  

  • 您可以通过命令行界面使用隐藏命令添加此功能
  • 可以使用名为""transfer-schedule-name的隐藏字段检查、添加或修改具有计划的SnapMirror策略:

cluster::> snapmirror policy show -fields transfer-schedule-name

  • 此命令将在未来的ONTAP版本中公开列出
注: 
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