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"cluster peer health show"的输出会间歇性显示数据ping的"session reachable"

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Category:
snapmirror
Specialty:
dp
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适用场景

  • ONTAP 9
  • 创建集群对等关系
  • SnapMirror 

问题描述

cluster peer health show此命令将显示 session_reachableData Ping 集群对等关系中一个或多个节点对的状态。在以下示例 session_reachableData Ping 中、本地节点NetApp-02报告其与远程节点DRNETAPP-01之间的状态。

NETAPP01::> cluster peer health show
Node     Cluster-Name          Node-Name

       Ping-Status         RDB-Health Cluster-Health Availability
---------- --------------------------- --------- --------------- ------------
NETAPP01-01
      DRNETAPP01           DRNETAPP01-01
       Data: interface_reachable
       ICMP: interface_reachable  true    true       true
                     DRNETAPP01-02
       Data: interface_reachable
       ICMP: interface_reachable  true    true       true
NETAPP01-02
      DRNETAPP01           DRNETAPP01-01
       Data: session_reachable
       ICMP: interface_reachable  true    true       true
                     DRNETAPP01-02
       Data: interface_reachable
       ICMP: interface_reachable  true    true       true
4 entries were displayed.

session_reachable Data Ping 一个或多个节点对的状态将通过发生原因 创建集群对等关系来报告 Partial 可用性、如 cluster peer show 命令中所示。
NETAPP01::> cluster peer show
Peer Cluster Name      Cluster Serial Number  Availability   Authentication
------------------------- ---------------------  --------------  --------------
DRNETAPP          0-00-000000       Partial      ok

Partial 集群对等关系的可用性可能会阻止OnCommand System Manager或7-模式过渡工具(7MTT)等管理软件中的某些操作。

session_reachableData Ping 大多数情况下、问题描述 将是间歇性的、SnapMirror将继续运行;但是 session_reachable 、如果集群会话管理器(Cluster Session Manager、CSM)连接失败、集群对等连接断开或SnapMirror中止、则此状态可能也会出现、例如、可通过 event log show 命令查看以下日志:

Sun Jan 01 2016 00:00:20 -05:00 [cpeer.unavailable:ALERT] Peer cluster DRNETAPP01 is no longer available.

Sun Jan 01 2016 00:00:40 -05:00 [csm.sessionFailed:warning] Cluster interconnect session (req=NETAPP01-01:dblade, rsp=DRNETAPP01-02:dblade, uniquifier=0f01234567890abc) failed with record state ACTIVE and error CSM_CONNABORTED.

Sun Jan 01 2016 00:00:50 EST 2016 ScheduledUpdate[Jan 12 22:15:00]:12345678-1234-1234-1234-123456789012 action=Defer source=SVMSource:SourceVol destination=SVMDestination:DestinationVol status=Failure message=Failed to start transfer for Snapshot copy "snapmirror.01234567-1234-1234-1234-123456789012_0123456789.2016-01-01_000040".(Failed to start transfer.(Replication operation request failed from Cluster Id: 12345678-1234-1234-1234-123456789012, Node Id: 12345678-1234-1234-1234-123456789012 to Cluster Id: 12345678-1234-1234-1234-123456789012, Node Id: 12345678-1234-1234-1234-123456789012 due to a network error(CSM: An operation did not complete within the specified timeout window.)))

 

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