在 ONTAP 升级期间控制器崩溃会导致数据访问丢失

适用场景

•  ONTAP 9.3 — ONTAP 9.3P6
• ONTAP 9.4 — ONTAP 9.4P1
• 自动无中断升级(ANDU)

问题描述

• 节点关闭并显示以下崩溃字符串：

PANIC: process on cpu14 hung (wafl_exempt00) for 5001 milliseconds! in SK process wafl_exempt14 on release 9.3P6 (C)

• 在开始接管ANDU进程的配对节点后、此节点可能会很快发生崩溃：

[controller02: svc_queue_thread: clam.notify.halt.result:debug]: CLAM was able to notify its HA partner node that the local node is undergoing a planned shutdown (reason: Local node shutting down). Error: 0

[controller02: cf_main: cf.fsm.firmwareStatus:info]: Failover monitor: partner Dumping core