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NetApp Knowledge Base

Batch LIF migrations take unexpectedly long and might cause client disruptions

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179
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Public
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Category:
ontap-9
Specialty:
core
Last Updated:

Applies to

  • ONTAP Upgrade
    • Affected versions 9.7P8, 9.8P4, 9.8P5, 9.9.1P1
    • upgrading from or to the affected versions without fix for BURT 1414513
  • DNS Load Balancing

Issue

  • Migrating or reverting batches of NAS LIFs between nodes might take longer than expected to online the LIF on its target Ethernet port
    • LIFs migrated as a part of upgrade show up as "Operational Down"
    • Only migrated LIFs are impacted
    • LIFs that are on their home node remain functional
  • Client NAS access can get interrupted during ONTAP upgrades to a target ONTAP version without fix for BURT 1414513
    • Application outages might trigger, due to NAS clients not being able to reach the data LIF as long as it is not hosted on an Ethernet  port
  • In "network interface show" we see error:

When the problem is in place, LIF status-extended shows:

cluster2::> network interface show -fields status-extended
vserver  lif               status-extended
-------- ----------------- ---------------
svm1     nfs_lif           This LIF is down because it is not configured in the network stack on node "node-02". Wait a few minutes, then check the LIF's status again.

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