"cluster peer health show"的输出会间歇性显示数据ping的"session reachable"
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_reachable
Data 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_reachable
Data 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。
在 session_reachable
Data 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.)))