ONTAP FlexArray 多磁盘崩溃：RAID 组中无奇偶校验磁盘的致命磁盘错误

适用于

• ONTAP 9
• Data ONTAP 8.X
• FlexArray
• ONTAP Select

问题描述

• 一个控制器死机：

Panic String: aggr AGGR1: raid volfsm, fatal disk error in RAID group with no parity disk. raid type raid0
Group name plex0/rg2 state NORMAL 1 disk failed in the group. Disk SWXX1:11-38.206L17 Shelf - Bay - [NETAPP INF-01-00 0810]
S/N [XXXXX] error no valid path to disk.

• 控制器可能不会遇到崩溃并输出崩溃字符串，在这种情况下，执行接管的节点上将出现以下 EMS 消息：

Mon Jul 14 22:53:34 -0400 [stor14ncc2n2: cf_main: cf.fsm.takeover.mdp:alert]: Failover monitor: takeover attempted after multi-disk failure on partner

• 两个节点均在 EMS 类似事件中报告：

Sat May 29 08:06:49 +0200 [node-02: slifc_asyncd_1: mlm.array.lun.PathRemoved:info]: Array LUN 'SWXX1:11-38.206L17' (XXXXX) is no longer available on initiator port 1a through array1's target port: WWNN: 200200a098xxxxxxx, WWPN: 201200a098xxxxxxx.
Sat May 29 08:06:49 +0200 [node-02: slifc_asyncd_1: mlm.array.lun.OnePath:error]: Array LUN 'SWXX1:11-38.206L17' is connected using only one path. To avoid the potential for data loss caused by the remaining path's failure, all array LUNs should have at least two paths.

• 磁盘通信已达到基本超时：

[node-01: disk_server_1: disk.ioFailed:error]: params: {'deviceName': 'SWXX1:11-38.206L17', 'returnCode': '2', 'pathRetryCount': '0', 'adapterStatus': '0xd', 'cdb': '0x28:566d0f00:0010', 'basicTimeout': '15', 'iASCQ': '0x0', 'iSenseKey': '0x0', 'sSenseCode': '', 'ETime': '4845860', 'iASC': '0x0', 'victimRetryCount': '3', 'sSenseKey': 'SCSI:no sense', 'targetStatus': '0x0', 'retryCount': '3', 'pathsTried': '0', 'timeoutRetryCount': '0'}