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SAS Lane on optical SAS cable down due to broken cable/patch panel

Applies to

  • MetroCluster
  • Optical SAS Cable
  • Patch Panel

Issue

Sysconfig -a output shows a SAS Lane as No Signal or unkown

slot 2: SAS Host Adapter 2b (PMC-Sierra PM8001 rev. C, SAS, <UP>)
          MFG Part Number: USI 6086-000010-07 rev. MP V4.10
          Part number: 111-00341+F2
          Serial number: ST063C6K048
          Date Code: 20120619
          Firmware rev: 01.12.06.00
          Base WWN: 5:00e004:0002025:8c
          Phy State: [4] Enabled, 6.0 Gb/s
                     [5] No Signal, n/a   <----- Lane is not working correctly
                     [6] Enabled, 6.0 Gb/s
                     [7] Enabled, 6.0 Gb/s
         
          QSFP Vendor: Molex Inc.
          QSFP Part Number: 112-00272+A0
          QSFP Type: Optical (1490nm DFB) 5m ID:00
          QSFP Serial Number: 93AG13502P0074

 

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