CVO 上的磁盘缺失，导致系统崩溃

适用场景

• Cloud Volumes ONTAP (CVO)
• Blue XP (原Cloud Manager)
• Microsoft Azure
• Amazon Web Services (AWS)
• Google Cloud Platform (GCP)
• 单节点或HA对

问题描述

• 由于下划线基础架构中的问题描述、一个或多个磁盘无法访问、并导致崩溃：

[Cluster-01: pha_remove000: mlm.array.lun.removed:notice]: Array LUN '0b.29' (00000000i3g268fHE60S) is no longer being presented to this node.

[Cluster-01: dmgr_thread: raid.disk.missing:info]: Disk /aggr04/plex0/rg0/0b.29 S/N [00000000i3g268fHE60S] UID [00000000i3g268fHE60S] is missing from the system

[Cluster-01: config_thread: sk.panic:alert]: Panic String: aggr aggr04: raid volfsm, fatal disk error in RAID group with no parity disk..  Raid type - raid0 Group name plex0/rg0 state NORMAL. 1 disk failed in the group. Disk 0b.29 S/N [00000000i3g268fHE60S] UID [00000000i3g268fHE60S] error: disk does not exist. in SK process config_thread on release 9.7P7 (C)

[Cluster-01: config_thread: sk.panic:alert]: params: {'reason': 'aggr aggr04: raid volfsm, fatal disk error in RAID group with no parity disk..  Raid type - raid0 Group name plex0/rg0 state NORMAL. 1 disk failed in the group. Disk 0b.29 S/N [00000000i3g268fHE60S] UID [00000000i3g268fHE60S] error: adapter error prevents command from being sent to device. in SK process config_thread on release 9.7P7 (C)'}

• 在某些情况下、系统可能会发生崩溃并出现 WAFL Hung 崩溃：
      Panic String: WAFL hung for aggr1. in SK process wafl_exempt02 on release 9.9.0 (C)
• 在AWS/GCP中、可能会导致丛故障、节点可能会恢复为"UNNGE"状态。在Azure上、如果磁盘(对于Azure HA根/数据聚合、则为页面blobs)不可访问、则可能导致崩溃。
• 由于 HA Group Notification (PARTNER DOWN, TAKEOVER IMPOSSIBLE ) EMERGENCY 出现警报、可能会自动创建支持案例