SyncMirror 丛失败—AutoSupport 消息

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适用场景

MetroCluster
Data ONTAP 8
ONTAP 9
SyncMirror

事件摘要

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

确定报告出现故障的丛：

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

ONTAP 9

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 表示丛不可操作。

确定丛失败的原因：
- 磁盘
- shelf
- 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)

解决发生原因可能会使磁盘恢复使用、并使丛恢复可操作状态。如果丛恢复到运行状态、则重新同步过程应自动启动。在这种情况下、无需执行进一步操作。您可以使用以下命令监控重新同步过程：

SiteA:>storage aggregate plex show

如果无法修复发生原因、例如实际磁盘(硬件)故障、站点故障、电耗激增或类似情况、并且无法将足够的磁盘恢复使用以使丛联机、则丛无法修复、但必须销毁并重新创建。

注意：销毁并重新创建丛需要执行完整的镜像基线。确保池中有足够的备用磁盘来重新创建镜像。

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>

Data ONTAP 8.2

通过 'aggr status -v输出确定聚合和故障丛

>aggr status -v Aggr State Status Options aggr1 online raid_dp, aggr nosnap=on, raidtype=raid_dp, raidsize=14, mirrored ignore_inconsistent=off, snapmirrored=off, 64-bit resyncsnaptime=60, fs_size_fixed=off, lost_write_protect=on, ha_policy=cfo, hybrid_enabled=off, percent_snapshot_space=15%, free_space_realloc=off Volumes: vol1, vol2, vol3

Plex /aggr1/plex0: online, normal, active RAID group /aggr1/plex0/rg0: normal, block checksums Plex /aggr1/plex1: offline, failed, inactive RAID group /aggr1/plex1/rg0: partial, block checksums

状态为""partial表示丛不可操作。

确定丛失败的原因：
- 磁盘
- shelf
- 交换机ISL故障
- 站点故障

>sysconfig -r

如果无法修复发生原因、例如实际磁盘(硬件)故障、站点故障、电耗激增或类似情况、并且无法将足够的磁盘恢复使用以使丛联机、则丛无法修复、但必须销毁并重新创建。

注意：销毁并重新创建丛需要执行完整的镜像基线。确保池中有足够的备用磁盘来重新创建镜像。

要销毁并重新创建镜像、请执行以下步骤：

aggr destroy aggr0/plex1
aggr mirror aggr0

追加信息

如果您需要有关排除丛故障的帮助或任何进一步帮助、请联系 NetApp技术支持。