集群对等显示 - IP 地址不正常：远程集群不可用或部分不可用

适用于

• ONTAP 9
• 集群对等

问题

• Cluster Peer 命令输出显示 Unavailable  和或 Partial：

Cluster1::*> cluster peer show
Peer Cluster Name     Cluster Serial Number Availability   Authentication
------------------------- --------------------- -------------- --------------
Cluster2            1-80-139865       Unavailable   ok
Cluster3          1-80-035774       Partial     ok.

• 当远程集群的接口不可用时，将报告错误、EMS 和  cluster peer health  输出中的更改。
• 例如，以下输出指示  cluster1  中的一些节点无法从  cluster2 访问

cluster2::> cluster peer health show
Node     Cluster-Name          Node-Name
       Ping-Status         RDB-Health Cluster-Health Availability
---------- --------------------------- --------- --------------- -----------
  
node1
      cluster1               node1
       Data: unreachable
       ICMP: unreachable      true    true       false
                    node2
       Data: interface_reachable
       ICMP: interface_reachable true    true       true
node2
      cluster1               node1
       Data: unreachable
       ICMP: interface_reachable      true    true       false
                    node2
       Data: unreachable
       ICMP: interface_reachable      true    true       false
4 entries were displayed..

• 每次远程集群不可用时，也会报告  cpeer.unavailable EMS 消息：

cluster2::> event log show -messagename cpeer.unavailable -instance
  
      Node: node1
    Sequence#: 71687
      Time: 5/15/2012 14:02:37 
 
    Severity: ALERT
     Source: mgwd
  Message Name: cpeer.unavailable
      Event: cpeer.unavailable: Peer cluster cluster1 is no longer available.

• 事件日志显示 Failed to contact peer cluster 和类似的集群对等错误。

Periodic update of peer network information failed. The following operations are incomplete: discovery failure.

Periodic update of peer information from <cluster_name> failed. The following operations are incomplete: The identity of peer cluster <cluster_uuid> not found, and name cache updates for cluster <cluster_name> failed .

Address discovery failed for peer cluster <cluster_uuid>. Reason: Failed to discover remote addresses: Failed to contact peer cluster <cluster_name> at address: <IP_address,..,IP_address>. RPC: Remote system error [from mgwd on node <node_name> (VSID: -3) to mgwd at <IP_address>, <IP_address>].

• 这些日志具有标头，例如：

cpeer.xcm.update.warn:error
cpeer.pm.update.warn:error
cpeer.xcm.addr.disc.warn:error
csm.connectionFailed:debug
csm.createSessionFailed:debug.

• 当它再次可用时，不会报告 EMS 消息。
• 每次远程集群从可用转换为不可用时，都会收到一条消息。
• 每 cpeer.unavailable 条消息之间都有一个到可用的隐式转换。