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System shows single path under multi path cabling configuration

Views:
328
Visibility:
Public
Votes:
0
Category:
fas-systems
Specialty:
hw
Last Updated:

Applies to

  • FAS2620
  • FAS2650
  • FAS2720
  • FAS2750
  • ONTAP 9
  • I/O Module (IOM)

Issue

  • System reports Single-Path when cabled for Multi-Path.
  • IOM6 and IOM12 are mixed in the same stack.
  • If the cabling is not correct the system might trigger an EMS message similar to:

Fri Sep 25 09:59:15 CEST [node-01: nchmd: hm.alert.raised:alert]: Alert Id = IOM12ToIOM6SquarePortConnection_Alert , Alerting Resource = 1234567..... raised by monitor node-connect

  • The port where the IOM6 Square port is connected to will be disabled:

Shelf name:    Partner.shelf0
Shelf id:      0
Channel:       Partner
Module:        A
               Partial Path   Link    Invalid   Running     Loss    Phy       CRC     Phy
Disk    Port   Timeout        Rate     DWord    Disparity   Dword   Reset     Error   Change
Id     State   Value (ms)    (Gb/s)    Count    Count       Count   Problem   Count   Count
--------------------------------------------------------------------------------------------
[SQR0] NO SIGNAL      7         NA        0           0       0        0         0       6
[SQR1] NO SIGNAL      7         NA        0           0       0        0         0       6
[SQR2] NO SIGNAL      7         NA        0           0       0        0         0       6
[SQR3] NO SIGNAL      7         NA        0           0       0        0         0       6

Shelf name:    0b.shelf1
Shelf id:      1
Channel:       0b
Module:        A
               Partial Path   Link    Invalid   Running     Loss    Phy       CRC     Phy
Disk    Port   Timeout        Rate     DWord    Disparity   Dword   Reset     Error   Change
Id     State   Value (ms)    (Gb/s)    Count    Count       Count   Problem   Count   Count
--------------------------------------------------------------------------------------------
[HST8] DIS/ILLGL      7         NA        0           0       0        1         0       4
[HST9] DIS/ILLGL      7         NA        0           0       0        0         0       4
[HST10] DIS/ILLGL      7         NA        0           0       0        1         0       4
[HST11] DIS/ILLGL      7         NA        0           0       0        1         0       4

 

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