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LUN 访问期间的延迟,如果 LUN 属于第三方存储供应商

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fc-series
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适用场景

  • Brocade
  • 第三方供应商

问题描述

  • 访问时 LUN 出现极长延迟。LUN 托管在纯存储上。
  • 存储适配器上的低接收,将问题描述 指向交换机端。
  • 未发现分区问题
  • 交换机会显示性能影响。
  • errdump 日志显示错误:

2022/01/24-14:12:29:887205, [XXX], 40533/0, CHASSIS, WARNING, BrocadeG630, S0,B-1: Detect CRC error with good EOF on C-port xx, OID:0x43028817, c4_intr.c, line: 8625, comp:insmod

  • portershow 日志显示 C3 丢弃量增加:

 frames    enc   crc   crc   too   too   bad   enc   disc   link   loss   loss   frjt   fbsy  c3timeout   pcs
    tx    rx    in   err   g_eof  shrt   long   eof    out   c3   fail   sync   sig          tx   rx   
xx:   2.2m   1.3m   0    0    0    0    0    0    0    7.4k   0    0    0    0    0    0    2.4k 
xx:  220   286    0    0    0    0    0    0    0   275    0    0    0    0    0    0   103   
xx:   1.7m   1.1m   0    0    0    0    0    0    0    5.6k  0    0    0    0    0    0    1.8k 

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