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Storage Replication Adapter :什么因素决定了在故障转移操作期间是否创建了新的启动程序组或导出策略?

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ontap-storage-replication-adapter
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适用场景

  • 适用于VMware vSphere的ONTAP工具(OTV)
  • Storage Replication Adapter (SRA)
  • VMware Site Recovery Manager (SRM)

问题解答

  1. 在故障转移操作期间、VMware Site Recovery Manager (SRM)将从灾难恢复(DR)站点上的ESXi主机编译启动程序列表。从SRM日志记录:

2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved VM Kernel IP address
'192.168.0.101' for host 'vim.HostSystem:xxx'
2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved VM Kernel IP address
'192.168.0.102' for host 'vim.HostSystem:xxx'
2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved VM Kernel IP address
'192.168.0.103' for host 'vim.HostSystem:xxx'
2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved FC HBA 'vmhba1' for host 'vim.HostSystem:xxx'
2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved FC HBA 'vmhba2' for host 'vim.HostSystem:xxx'
2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved FC HBA 'vmhba1' for host 'vim.HostSystem:xxx'
2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Retrieved FC HBA 'vmhba2' for host 'vim.HostSystem:xxx'

  1. SRM 会将这些启动程序编译到一个"访问组"中:

2016-07-22T13:16:30.626-04:00 [04464 verbose 'Storage' opID=] Added
initiators to access group 'domain-***':
--> [{FC: 20:00:00:***}, {FC: 20:00:00:*****}, {FC: 20:00:00:*****},
{FC: 20:00:00:*****}, {FC: 20:00:00:*****}, {FC: 20:00:00:*****}, {FC:
{NFS:****}, {NFS: ****}, {NFS: ****}, 

  1. 然后、SRM会 在执行故障转移操作之前将此"访问组"传递到Storage Replication Adapter (SRA):

--><AccessGroups>
--><AccessGroup id="domain-c91">
--><Initiator id="20:00:00:*****" type="FC"/>
--><Initiator id="20:00:00:*****" type="FC"/>
--><Initiator id="****" type="NFS"/>
--><Initiator id="****" type="NFS"/>
--></AccessGroup>
--></AccessGroups>

  1. SRA 可确定 灾难恢复站点的存储阵列上是否存在现有启动程序组(对于SAN)或现有导出策略(对于NFS)
    • 如果访问组中SRM提供的启动程序 现有igrou中的启动程序或现有导出策略中的规则匹配、则将使用现有igrop或策略
    • 如果 访问组中SRM提供的启动程序  现有igrou中的启动程序或现有导出策略中的规则不匹配、则会创建一个新的igrop或导出策略
      • SRA将为SRM执行的任何测试故障转移创建test_Failover igroub

注意: SRA依赖于SRM 来提供启动程序列表。  SRA 只需处理SRM提供的访问组、并确定是否需要创建新的igrop或策略、或者是否可以使用现有的igrop或策略。  有关SRM如何 构建访问组的详细信息、请参见 VMware知识库文章83335

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