Skip to main content
NetApp Knowledge Base

Host lost access to LUNs due to faulty SFP

  1. Last updated
  2. Save as PDF
Views:
1,169
Visibility:
Public
Votes:
0
Category:
fas-systems
Specialty:
san
Last Updated:

​ ​

Applies to

  • ONTAP 9
  • SAN
  • FCP

Issue

  • ONTAP EMS log reports event with fcp.io.status STIO Adapter IO WQE failure
  • Host loses access to LUNs intermittently.
  • SAN paths keep flapping 
  • Switch errdump:

2020/03/03-07:58:27, [C3-1014], 340, CHASSIS, WARNING, Brocade6505,  Link Reset on Port S0,P6(3) vc_no=0 crd(s)lost=6 auto trigger.

  • switch porterrshow:

porterrshow
          frames      enc    crc    crc    too    too    bad    enc   disc   link   loss   loss   frjt   fbsy  c3timeout    pcs    uncor
       tx     rx      in    err    g_eof  shrt   long   eof     out   c3    fail    sync   sig                  tx    rx     err    err
 
  6:    3.6k   9.8k   0      3.6k   3.5k   0      0     60      0    228      0      0      0      0      0    223      0    233.9k   0

  • sfpshow 6

RX Power:    -6.1    dBm (247.2uW)
TX Power:    -2.9    dBm (510.5 uW)

 

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.