Skip to main content
NetApp Knowledge Base

System shows Single-Path and Mixed-Path due to SAS port failure

  1. Last updated
  2. Save as PDF
Views:
200
Visibility:
Public
Votes:
0
Category:
fas-systems
Specialty:
hw
Last Updated:

Applies to

  • ONTAP 9
  • FAS2720
  • FAS2650

Issue

  • Node01 shows Single-Path and Node02 shows Mixed-Path in sysconfig -a.
System Serial Number: 952049002044 (node01)
System Rev: C2
System Storage Configuration: Single-Path HA
 
System Serial Number: 95204900XXX (node02)
System Rev: C2
System Storage Configuration: Mixed-Path HA
  • 0b port in Node01 is offline.
slot 0: SAS Host Adapter 0b (PMC-Sierra PM8070 rev. C, SAS, <OFFLINE (hard)>)
  • AutoSupport reports DISK REDUNDANCY FAILED
  • IOMA information of Shelf 0 missing in sysconfig-a.
Shelf 0: DS212-12  Firmware rev.  A: ----  IOM12E B: 0220
  • Node01 0b path not available, and Node02 0a path shelf0 missing in SAS-EXPANDER-MAP.
[SAS-EXPANDER-MAP](node01)
Expanders on channel 0a:
Level    1: WWN 500a09800858b84d, ID  1, Serial Number ' SHJSG2108000107', Product 'DS21212IOM12A   ', Rev '0270', Slot B
Level    2: WWN 500a098008585521, ID  2, Serial Number ' SHFNC2105000105', Product 'DS22412IOM12A   ', Rev '0270', Slot B
Level    3: WWN 500a09800e58563f, ID  0, Serial Number ' SHFNC2109000059', Product 'DS21212IOM12E   ', Rev '0220', Slot B
 
Expanders on channel 0b:
Cannot Complete operation on channel 0b; Status Not Available.
 
[SAS-EXPANDER-MAP] (node02)
Expanders on channel 0a:
Level    1: WWN 500a09800858b769, ID  1, Serial Number ' SHJSG2108000107', Product 'DS21212IOM12A   ', Rev '0270', Slot A
Level    2: WWN 500a0980085852f5, ID  2, Serial Number ' SHFNC2105000105', Product 'DS22412IOM12A   ', Rev '0270', Slot A
 
Expanders on channel 0b:
Level    1: WWN 500a09800e58563f, ID  0, Serial Number ' SHFNC2109000059', Product 'DS21212IOM12E   ', Rev '0220', Slot B
Level    2: WWN 500a098008585521, ID  2, Serial Number ' SHFNC2105000105', Product 'DS22412IOM12A   ', Rev '0270', Slot B
Level    3: WWN 500a09800858b84d, ID  1, Serial Number ' SHJSG2108000107', Product 'DS21212IOM12A   ', Rev '0270', Slot B

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.