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Linux host gets hung when performing I/O to the particular volume on E-Series

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Category:
e-series-systems
Specialty:
esg
Last Updated:

Applies to

E-Series

Issue

  • ls command against the particular E-Series volume gets hung on Linux host
  • No hardware error observed in E-Series
  • ionShow in STATE-CAPTURE-DATA indicates the followings:
    • High error counters against the problematic volume
    • Port Name with a high error counter corresponds to the Linux host

-> tditlnall 3
Read/Write Completions
.........TDITLN.........:Initiator.:.................R E A D S................:...............W R I T E S................:
  tditn LUN LU(SSID) Ch : Location :  #Success ByteXfered ART(uSec) MRT(uSec) :  #Success ByteXfered ART(uSec) MRT(uSec) :#Errs
------- --- -------- -- :--------- :---------- ---------- --------- --------- :---------- ---------- --------- --------- :-----
     10  37 00000024  4 :<HOST>    :  11721837 48013841920       789    404603 :         0          0         0         0 :56477
     11  37 00000024  5 :<HOST>    :  11346460 46475867648      1014    396800 :         0          0         0         0 :48775

-> tditnall 0
...TDITN..:...................................Initiator.....................................:..........IOs..........:........Busy.........Idle
 tditn Ch : Location                      Device Name                        Port Name  Seq : Open  Completed  Errs :          Ms           Ms
------ -- :--------- -------------------------------- -------------------------------- ---- :----- ---------- ----- :------------ ------------
    10  4 :<HOST>                    200000109bf8469f                 <HOST_PORT_WWN>    27 :    0   12425882 56596 :    52523204            0
    11  5 :<HOST>                    200000109bf846a0                 <HOST_PORT_WWN>    28 :    0   12039867 48892 :    52523204            

 

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