由于主机连接，卷不在首选路径上

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适用场景

NetApp E 系列
卷不在首选路径上(VNOPP)

问题描述

系统通过 MAJOR-EVENT-LOG 中的自动卷传输(AVT)或冗余磁盘阵列控制器(RDAC)故障转移事件报告VNOPP：

Date/Time: 20XX-05-10 22:26:11 Sequence number: 69291 Event type: 4011 Event category: Error Priority: Critical Event needs attention: true Event send alert: true Event visibility: true Description: Volume not on preferred path due to AVT/RDAC failover Event specific codes: 0/0/0 Component type: Controller Component location: Shelf XX, Bay X Logged by: Controller in bay X

RECOVERY-GURU-PROCEDURES 报告NON_PREFERRED_PATH-Recovery Failure Type Code: 10
VNOPP之前发生IO传送事件、请指定导致IO和受影响的控制器的主机：

A:5/10/XX 10:26:11 PM (22:26:11) 69291 4011 Volume not on preferred path due to AVT/RDAC failover - Shelf XX, Bay X <--CRITICAL B:5/10/XX 10:21:11 PM (22:21:11) 69290 2044 IO shipping implicit volume transfer - Volume Volumename ----> Shipped/Owned IOs: 186360/61155, Host ID: XXX

所有的I/O操作都集中在一个控制器上，导致CPU使用率增加。