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NFS clients using NFS over IPSEC got hung and reporting NFS not responding error

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Category:
ontap-9
Specialty:
NAS
Last Updated:

Applies to

  • ONTAP 9
  • NFS over IPSEC

Issue

  • Multiple NFS clients with IPSEC configured got hung and not able to access the NFS exports.
  • Below error seen on client side:
linuxserver# grep -i "nfs: server" /var/log/messages
Nov  3 21:32:52 linuxserver kernel: [2452817.887041] nfs: server nfsserver.domain.local not responding, still trying
Nov  3 21:32:52 linuxserver kernel: nfs: server nfsserver.domain.local not responding, still trying
  • There are two IPSEC connections showing on Ontap side:
cluster::*> security ipsec show-ikesa -node node1 -vserver svm1 -remote-address 10.1.1.1
Policy Local           Remote
Vserver     Name   Address         Address         Initator-SPI     State
----------- ------ --------------- --------------- ---------------- -----------
svm1     policy1
10.2.2.2    10.1.1.1    862128cb074189a9 ESTABLISHED
10.2.2.2    10.1.1.1    d4e213e48c29809e ESTABLISHED
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