Fibre Channel (SAN)

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Occasional Contributor
Posts: 7
Registered: ‎12-12-2017

Thoughts on the following error stats

[ Edited ]

 

I've setup storage replication with two Brocade 300s (in two buildings, 400m apart).

 

         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     err
  1:    6.7m  23.7m   0      0      0      0      0      0      0      0      0      0      0      0      0      0      0      0
  3:  774.8k   6.4m   0      0      0      0      0      0      0      0      0      0      0      0      0      0      0      0
 18:   24.0m   1.4m   1      1      1      0      0      0      0      0      0      0      0      0      0      0      0      0

        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     err
  0:  602.1k 602.1k   0      0      0      0      0      0      0      0      0      0      0      0      0      0      0      0
  1:   23.7m   1.0m   0      0      0      0      0      0      0      0      0      0      0      0      0      0      0      0
  7:    1.4m  24.0m   6      6      6      0      0      0      0      0      0      0      0      0      0      0      0      0

 

My concern is with port 18 and 7.

 

Both are configured as E-ports with long distance enabled and are running at 8Gb. I have cleaned/replaced fiber cables, tried different transceivers but the small number of errors persist.

 

Are the CRC errors considered negligible with the number of frames being pushed? I see decent throughput numbers (5.5Gb) so it doesn't look like performance is being impacted by the errors.

 

Thanks.

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