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CVO node stuck in boot reporting device latency

  1. Last updated
    Feb 10, 2025
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Category:
cloud-volumes-ontap-cvo
Specialty:
core
Last Updated:
2/10/2025, 5:14:30 PM

Applies to

  • ONTAP 9
  • Cloud Volumes ONTAP

Issue

  • Node takes long time to boot.
  • Mroot is not mounted during the boot process

WARNING: netapp_mount_mroot: vol0 DSID is MISSING.
WARNING: netapp_mount_mroot: d-blade boot is incomplete.
netapp_mount_mroot: /mroot is not mounted, retrying...
netapp_mount_mroot: /mroot is not mounted, retrying...

  • Disk latency issues are observed during boot.

[node01:device.latency.threshold:notice]: The device latency in microseconds exceeded the threshold value for device "da7" and the associated target device "n/a". The threshold is "25000", execution latency is "101538", total latency is "101540", and the number of operations for this period is "638".

[node01:device.latency.threshold:notice]: The device latency in microseconds exceeded the threshold value for device "da9" and the associated target device "n/a". The threshold is "25000", execution latency is "99387", total latency is "99390", and the number of operations for this period is "664".

 

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