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Shelf connected to FAS/ AFF system missing a path to the Node

  1. Last updated
    Feb 17, 2025
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Category:
fas-systems
Specialty:
HW
Last Updated:
2/17/2025, 12:33:39 AM

Applies to

  • NetApp AFF and FAS systems
  • Data ONTAP 8 7-Mode
  • ONTAP 9

Issue

  • Alert received:
[Node-01: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process nchm: SinglePathToDiskShelf_Alert
  • The expander map does not show all shelves on both paths:
::> system node run -node <node_name> sasadmin expander_map

Expanders on channel 0b: 
Level    1: WWN <World_Wide_Name_id>,  ID  5, Product 'DS424IOM3', Rev '0212', Slot B
Level    2: WWN <World_Wide_Name_id>,  ID  4, Product 'DS424IOM3', Rev '0212', Slot B
Level    3: WWN <World_Wide_Name_id>,  ID  3, Product 'DS424IOM3', Rev '0212', Slot B

Expanders on channel 0c: 
Level    1: WWN <World_Wide_Name_id>,  ID  0, Product 'DS424IOM3', Rev '0212', Slot A
Level    2: WWN <World_Wide_Name_id>,  ID  1, Product 'DS424IOM3', Rev '0212', Slot A
Level    3: WWN <World_Wide_Name_id>,  ID  2, Product 'DS424IOM3', Rev '0212', Slot A
Level    4: WWN <World_Wide_Name_id>,  ID  3, Product 'DS424IOM3', Rev '0212', Slot A
Level    5: WWN <World_Wide_Name_id>,  ID  4, Product 'DS424IOM3', Rev '0212', Slot A
Level    6: WWN <World_Wide_Name_id>,  ID  5, Product 'DS424IOM3', Rev '0212', Slot A

  • Shelf 0,1 and 2 are seen as missing from path 0b.


 

 

 

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