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Performance issues while accessing the luns on host

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Category:
fc-series
Specialty:
SAN
Last Updated:

Applies to

  • ONTAP 9
  • FCP
  • SAN

Issue

  • Slowness while trying to access luns on host
  • Multiple errors are observed in EMS-LOG-FILE.GZ:

Wed Nov 03 02:02:59 CET [xxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x0, Type 8, S_ID: 700D00, VPI: 3, OX_ID: 674, Status 0x3 Ext_Status 0x16  
Wed Nov 03 02:13:11 CET [xxxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x1, Type 8, S_ID: 711300, VPI: 259, OX_ID: 442, Status 0x3 Ext_Status 0x16  
Wed Nov 03 06:22:37 CET [xxxxxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x0, Type 8, S_ID: 7B0C00, VPI: 3, OX_ID: 20C, Status 0x3 Ext_Status 0x16  
Wed Nov 03 06:57:49 CET [xxxxxxxx: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:xx IO WQE failure, Handle 0x1, Type 8, S_ID: 7A0D00, VPI: 259, OX_ID: 248, Status 0x3 Ext_Status 0x16  

  • The cable between the front-end switch and ONTAP is replaced; no change
  • There's a trend of degrading Tx/Rx value in which can be verified with the command:

Cluster::> fcp adapter show -node xxxxx -adapter xx

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