在 ONTAP FAS 环境中使用 Oracle ASM 执行持续 Linux 主机 DMMP 故障转移

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适用场景

ONTAP 9
Data ONTAP 8
7-模式 Data ONTAP
Oracle ASM
设备映射程序多路径（ DMMP ）

问题描述

FAS SAN 产品可能会出现以下症状：

合作伙伴路径流量
合作伙伴路径配置错误的 ASUP 警报
影响性能

以下错误讯息在主机日志（ /var/log/messages ）中反复报告：

May 18 03:47:40 hostname kernel: sd 5:0:0:3: rdac: array example, ctlr 0, queueing MODE_SELECT command May 18 03:47:40 hostname kernel: sd 5:0:0:3: rdac: array example, ctlr 0, MODE_SELECT returned with sense 06/94/01 May 18 03:47:40 hostname kernel: sd 5:0:0:3: rdac: array example, ctlr 0, retrying MODE_SELECT command May 18 03:47:40 hostname kernel: sd 5:0:0:3: rdac: array example, ctlr 0, MODE_SELECT completed May 18 03:48:00 hostname multipathd: vol1: load table [0 209715200 multipath 1 queue_if_no_path 1 rdac 2 1 round-robin 0 1 1 8:144 1 round-robin 0 1 1 8:112 1] May 18 03:48:21 hostname multipathd: vol3: load table [0 629145600 multipath 1 queue_if_no_path 1 rdac 2 1 round-robin 0 1 1 8:80 1 round-robin 0 1 1 8:64 1] May 18 03:48:21 hostname kernel: sd 5:0:0:1: rdac: array example, ctlr 0, queueing MODE_SELECT command May 18 03:48:21 hostname kernel: sd 5:0:0:1: rdac: array example, ctlr 0, MODE_SELECT returned with sense 06/94/01May 18 03:48:21 hostname kernel: sd 5:0:0:1: rdac: array example, ctlr 0, retrying MODE_SELECT command May 18 03:48:21 hostname kernel: sd 5:0:0:1: rdac: array example, ctlr 0, MODE_SELECT completed May 18 03:48:40 hostname multipathd: vol2: load table [0 209715200 multipath 1 queue_if_no_path 1 rdac 2 1 round-robin 0 1 1 8:160 1 round-robin 0 1 1 8:176 1] May 18 03:48:40 hostname multipathd: vol2: load table [0 209715200 multipath 1 queue_if_no_path 1 rdac 2 1 round-robin 0 1 1 8:160 1 round-robin 0 1 1 8:176 1] May 18 03:48:40 hostname kernel: sd 6:0:0:4: rdac: array example, ctlr 1, queueing MODE_SELECT command May 18 03:48:40 hostname kernel: sd 6:0:0:4: rdac: array example, ctlr 1, MODE_SELECT returned with sense 06/94/01 May 18 03:48:40 hostname kernel: sd 6:0:0:4: rdac: array example, ctlr 1, retrying MODE_SELECT command May 18 03:48:40 hostname kernel: sd 6:0:0:4: rdac: array example, ctlr 1, MODE_SELECT completed