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什么是 cf_hwassist_missedKeepAlive 超时和容错期限?

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fas-systems
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hw
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适用场景

  • NetApp AFF和FAS系统
  • ONTAP 9

问题解答

cf_hwassist_missedKeepAlive 发送硬件辅助数据包后、60秒后、EMS会记录意外事件。

硬件辅助数据包 每 180秒通过UDP发送一次、因此、  如果数据包 是发送的、而不是接收的、则不会重新传输数据包。如果UDP数据包被丢弃、阻止、截住、重定向等。如果某个节点未收到该消息、则该节点将仅等待180秒、直到发送下一个节点为止。

因此,如果 cf_hwassist_recvKeepAlive 事件 在120秒后显示 cf_hwassist_missedKeepAlive,则 可以安全地忽略它。

Sat Nov 04 22:07:44 +0900 [Nodename-02: cf_hwassist: cf.hwassist.missedKeepAlive:debug]: HW-assisted takeover missing keep-alive messages from HA partner (Nodename-01).
Sat Nov 04 22:09:14 +0900 [Nodename-02: cf_hwassist: cf.hwassist.recvKeepAlive:debug]: hw_assist: Received hw_assist KeepAlive alert from partner(Nodename-01).

追加信息

  • 对于的发生原因 cf_hwassist_missedKeepAlive,由于 在e0M上配置了硬件配置并使用IP和端口(默认值为4444)进行传输(通过客户网络环境),因此几乎每一个此类故障实例都是由网络丢弃的数据包引起的。
  • 通过命令检查hwassist-Health-check-interval"。

aff200-2n-dal-1::> storage failover show -fields hwassist,hwassist-partner-ip,hwassist-partner-port,hwassist-health-check-interval,hwassist-retry-count,hwassist-status
node      hwassist hwassist-partner-ip hwassist-partner-port hwassist-health-check-interval hwassist-retry-count hwassist-status
------------- -------- ------------------- --------------------- ------------------------------ -------------------- ---------------
aff200-dal-1a true    10.128.227.184    4444          180              2           active
aff200-dal-1b true    10.128.227.183    4444          180              2           active
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