[Moosefs-users] Cause of CRC errors

[Steve W. <st...@pu...>]

Hi,

One of my chunk servers will log a CRC error from time to time like the 
following:

     Apr  4 17:29:10 massachusetts mfschunkserver[2224]: 
write_block_to_chunk: 
file:/mfs/08/27/chunk_00000000066B5D27_00000001.mfs - crc error

Is the most likely cause faulty system memory?  Or disk controller?  We 
get an error about every two days or so and spread across most of the 
drives:

  #       IP path (switch to name)                chunks       last error
  9    128.210.48.62:9422:/mfs/01/    934123    2012-03-28 17:41
10    128.210.48.62:9422:/mfs/02/    931903    2012-03-23 21:28
11    128.210.48.62:9422:/mfs/03/    888712    2012-03-30 19:13
12    128.210.48.62:9422:/mfs/04/    931661    2012-04-01 03:01
13    128.210.48.62:9422:/mfs/05/    935681    no errors
14    128.210.48.62:9422:/mfs/06/    929248    2012-04-04 13:41
15    128.210.48.62:9422:/mfs/07/    929592    2012-03-30 19:02
16    128.210.48.62:9422:/mfs/08/    829446    2012-04-04 17:29

Thanks,
Steve