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FabricPool unable to tier due OscLowPriThreadPool: object.store.unavailable:EMERGENCY

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Category:
ontap-9
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CORE
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Applies to

  • ONTAP 9
  • FabricPool

Issue

  • Observed EMS event seen:

Wed Dec 14 18:43:50 -0500 [cluster1-01: OscLowPriThreadPool: object.store.unavailable:EMERGENCY]: Unable to connect to the object store "ObjectStore" from node 005asb9e-fxd4-11e7-a0b8-5baff40490e9. Reason: Not found.

  • Afterwards, the attached tier becomes unavailable

cluster1::> aggr object-store show

Aggregate      Object Store Name Availability   Mirror Type
-------------- ----------------- -------------  -----------
aggr1          ObjectStore       unavailable    primary
aggr2          ObjectStore       unavailable    primary

  • This can also bee seen in the aggr status -r output

Aggregate aggr1 (online, raid_dp, tier_unavailable) (block checksums)
  Plex /aggr1/plex0 (online, normal, active, pool0)
    RAID group /aggr1/plex0/rg0 (normal, block checksums)

  • No reported events are seen with the back end tier provider and all objects are seen in the associated bucket from the respective provider portal.

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