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Root aggregate is missing after a Head Upgrade

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Category:
ontap-9
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hw
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Applies to

  • ONTAP 9
  • Head Upgrade (A300 to A400)

Issue

  • Root aggregate is missing after an Head Upgrade from A300 to A400.
  • From Console/SP:

No root volume found.
Rebooting...
.
.
disks appear to be assigned, but no aggr found

  • From maintenance mode:

*> aggr show
the system appears to have no disks!
unable to run aggr command
[localhost:raid.assim.tree.noRootVol:error]: No usable root volume was found!

 

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