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Fabric Pool mirror degraded EMS shows wafl.ca.resync.read.fail

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Category:
ontap-9
Specialty:
CORE
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Applies to

ONTAP 9
Fabric Pool Mirroring

Issue

Customer configured an object store mirror to the designated tiered aggregates then began observing in the EMS log:

Wed Aug 07 07:30:10 -0600 [Node-01: wafl_cbin_cloud_obj_create_pr: wafl.ca.resync.read.fail:alert]: Unable to read cloud object from capacity tier (objid 2223984, btuuid 00000000-0000-0000-0000-000000000000, seqno 0) during FabricPool mirror resync.

The configured object stores showed available:

Cluster_CLI::> storage aggregate object-store show

Aggregate      Object Store Name Availability   Mirror Type
-------------- ----------------- -------------  -----------
Node-01_aggr01 OS_Store          available      primary
Node-01_aggr01 OS_Store_Mirror   available      mirror
Node-02_aggr02 OS_Store          available      primary
Node-02_aggr02 OS_Store_Mirror   available      mirror

4 entries were displayed.

However, the mirror state was degraded:

Cluster_CLI::*> storage aggregate object-store show -fields mirror-type,is-mirror-degraded

aggregate                    object-store-name mirror-type is-mirror-degraded
---------------------------- ----------------- ----------- ------------------
Node-01_aggr01               OS_Store           primary     -
Node-01_aggr01               OS_Store_Mirror    mirror      true
Node-02_aggr02               OS_Store           primary     -
Node-02_aggr02               OS_Store_Mirror    mirror      true
4 entries were displayed.

All normal tiered data continued to be available.

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