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如何删除外部聚合 (由孤立磁盘组成) 在集群模式 Data ONTAP 和 ONTAP 9 中

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适用场景

  • ONTAP 9
  • 集群模式 Data ONTAP 8.3

问题描述

如果这会影响您的系统,请检查 Active IQ

  • 在 ONTAP 9 中,将磁盘架从其他集群(或 7- 模式系统)添加到节点时,该磁盘架上的聚合可能会标记为外部,属于该聚合的驱动器可能会标记为孤立磁盘。
  • 更换从未置零的故障磁盘后,也可能会遇到此问题描述。
  • 聚合将在 aggr status命令下报告 Failed 和 Foreign , EMS 可能会在重新启动 / 接管期间报告 RAID 同化失败
    • 示例: 

aggr0(1) failed     raid_dp, aggr      diskroot, raidtype=raid_dp, raidsize=24, 
             foreign        raid_lost_write=on, resyncsnaptime=5, 

[?] Fri Jul 16 06:01:45 CDT [cluster1-01: config_thread: raid.assim.rg.missingChild:debug]: Aggregate partner_foreign:aggr0, rgobj_verify: RAID object 0 has only 5 valid children, expected 10.
[?] Fri Jul 16 06:01:45 CDT [cluster1-01: config_thread: raid.assim.plex.missingChild:debug]: Aggregate partner_foreign:aggr0, plexobj_verify: Plex 0 only has 0 working RAID groups (1 total) and is being taken offline
[?] Fri Jul 16 06:01:45 CDT [cluster1-01: config_thread: raid.assim.mirror.noChild:debug]: Aggregate partner_foreign:aggr0, mirrorobj_verify: No operable plexes found.
[?] Fri Jul 16 06:01:45 CDT [cluster1-01: cf_takeover: raid.fm.takeoverFail:alert]: RAID takeover failed: Partner label processing failed.

  • 这是由于磁盘未清零(并包含标签)、因此保留了早期系统中的聚合信息而导致的。
  • 只有在使用节点 shell 时才会看到这些“外来”聚合。
  • 不支持在已迁移磁盘架的集群模式 Data ONTAP 系统上访问这些聚合内部的外部卷。
  • 但是 ,支持删除外部聚合,从而将相关驱动器转换为未置零的备用磁盘。
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