Active IQ 警报：VLDB 和 WAFL 之间存在差异

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Category:: ontap-9

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适用于

ONTAP 9
任意写入文件布局（WAFL）
卷位置数据库（VLDB）
FlexGroup 卷
卷自动扩展

问题

Active IQ 报告了以下风险：

Discrepancies exist between VLDB (Volume Location Database) and WAFL (Write Anywhere File Layout)

debug vreport show 间歇性地显示卷差异：

::*> debug vreport show
volume Differences:

Name        Reason Attributes
--------      ------- ---------------------------------------------------
svm:vol__0002
         Present in VLDB and WAFL volume busy
              Node Name: cluster-02
              Volume DSID:1136 MSID:2155220372
              UUID: unknown
              Aggregate Name: aggr1_sata
              Aggregate UUID: 34d3b393-9a18-4c7a-9047-47f345d07e28
              Vserver UUID: 99a2525c-cf09-11ee-9fa8-d039fcc808af
              AccessType: READ_WRITE
              StorageType: REGULAR
              Constituent Role: none

事件日志还可能显示 FlexGroup 成分的频繁自动缩小/增长事件，例如：

Sun Mar 29 00:10:53 +0200 [cluster-01: wafl_exempt04: wafl_vol_autoSize_done_1:notice]: params: {'event_type': 'shrink', 'vol': 'vol__0002', 'app': '', 'volident': '@vserver:99a2525c-cf09-11ee-9fa8-d039fcc808af', 'size': '1.00GB', 'object_uuid': 'ab9f19c5-2n76-11f0-8fd1-d039eaa808af'}