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SyncMirror Plex 失败 - AutoSupport 消息

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适用于

  • MetroCluster
  • ONTAP 9
  • SyncMirror

事件摘要

此 AutoSupport 消息 SYNCMIRROR PLEX FAILED 指示 SyncMirror 的丛发生故障,并且 SyncMirror 关系处于降级状态。

验证

确定哪些丛报告为失败:

storage aggregate show
 
Aggregate     Size Available Used% State   #Vols  Nodes            RAID Status
--------- -------- --------- ----- ------- ------ ---------------- ------------
aggr0_siteA_02
           953.8GB   46.22GB   95% online       1 siteA-02         raid_dp,
                                                                   mirrored,
                                                                  normal
aggr1_siteA_02
            2.79TB    2.78TB    0% online       2 siteA-02         raid_dp,
                                                                   mirror
                                                                  degraded

解决方法

  1. 确定聚合和故障丛:

siteA::>storage aggregate show
 
Aggregate     Size Available Used% State   #Vols  Nodes            RAID Status
--------- -------- --------- ----- ------- ------ ---------------- ------------
aggr0_siteA_02
           953.8GB   46.22GB   95% online       1 siteA-02         raid_dp,
                                                                   mirrored,
                                                                  normal
aggr1_siteA_02
            2.79TB    2.78TB    0% online       2 siteA-02         raid_dp,
                                                                   mirror
                                                                  degraded

 

状态为 degraded 表示丛无法操作。

  1. 确定 plex 故障的原因:
    • 磁盘
    • 磁盘架
    • 交换机 ISL 故障
    • 站点故障

SiteA::>storage aggregate show-status -aggregate aggr2_siteA_02

Owner Node: SiteA-02
 Aggregate: aggr2_siteA_02 (online, raid_dp, mirror degraded) (block checksums)
  Plex: /aggr2_siteA_02/plex0 (online, normal, active, pool0)
   RAID Group /aggr2_siteA_02/plex0/rg0 (normal, block checksums)
                                                              Usable Physical
     Position Disk                        Pool Type     RPM     Size     Size Status
     -------- --------------------------- ---- ----- ------ -------- -------- ----------
     dparity  3.11.4                       0   SAS    10000   1.09TB   1.09TB (normal)
     parity   3.11.5                       0   SAS    10000   1.09TB   1.09TB (normal)
     data     3.11.6                       0   SAS    10000   1.09TB   1.09TB (normal)
     data     3.11.18                      0   SAS    10000   1.09TB   1.09TB (normal)
     data     3.11.19                      0   SAS    10000   1.09TB   1.09TB (normal)

  Plex: /aggr2_siteA_02/plex1 (offline, failed, inactive, pool1)
   RAID Group /aggr2_siteA_02/plex1/rg0 (partial, none checksums)
                                                              Usable Physical
     Position Disk                        Pool Type     RPM     Size     Size Status
     -------- --------------------------- ---- ----- ------ -------- -------- ----------
     dparity  FAILED                       -   -          -   1.09TB       0B (failed)
     parity   FAILED                       -   -          -   1.09TB       0B (failed)
     data     FAILED                       -   -          -   1.09TB       0B (failed)
     data     FAILED                       -   -          -   1.09TB       0B (failed)
     data     FAILED                       -   -          -   1.09TB       0B (failed)

解决原因可能会使磁盘恢复正常运行,使 plex 恢复到可操作状态。如果 plex 恢复到操作状态,则应自动启动重新同步过程。在这种情况下,无需执行进一步操作。您可以使用以下方式监控重新同步过程:

SiteA:>storage aggregate plex show

 

  1. 如果无法纠正原因 - 例如真正的磁盘(硬件)故障、站点故障、电涌或类似故障,并且无法使足够的磁盘恢复服务以使 plex 联机,则 plex 无法修复,但必须销毁和重新创建。

注意:销毁和重建 plex 需要进行完整的镜像基线。确保池中有足够的备件来重新创建镜像。

要销毁并重新创建镜像,请执行以下步骤:

  • storage aggregate plex delete -aggregate <aggr_name> -plex <degraded_plex_name>
  • storage aggregate mirror -aggregate <aggr_name>

追加信息

如果您需要有关 plex 故障排除的帮助或任何其他帮助,请联系NetApp 技术支持

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