software raid devices automatically getting checked ?

Thomas Vander Stichele thomas at apestaart.org
Thu Jun 25 10:28:09 UTC 2009


Hi,

My F11 machine spontaneously started checking the software raid devices:

Jun 25 03:06:13 ana pcscd: winscard.c:309:SCardConnect() Reader E-Gate 0
0 Not Found
Jun 25 03:26:02 ana kernel: md: data-check of RAID array md0
Jun 25 03:26:02 ana kernel: md: minimum _guaranteed_  speed: 1000
KB/sec/disk.
Jun 25 03:26:02 ana kernel: md: using maximum available idle IO
bandwidth (but not more than 200000 KB/sec) for data-check.
Jun 25 03:26:02 ana kernel: md: using 128k window, over a total of
208704 blocks.
Jun 25 03:26:02 ana kernel: md: delaying data-check of md1 until md0 has
finished (they share one or more physical units)
Jun 25 03:26:12 ana kernel: md: md0: data-check done.
Jun 25 03:26:12 ana kernel: md: data-check of RAID array md1
Jun 25 03:26:12 ana kernel: md: minimum _guaranteed_  speed: 1000
KB/sec/disk.
Jun 25 03:26:12 ana kernel: md: using maximum available idle IO
bandwidth (but not more than 200000 KB/sec) for data-check.
Jun 25 03:26:12 ana kernel: md: using 128k window, over a total of
974446592 blocks.


This is a check, not a resync, as can be seen here:
md1 : active raid1 sdb3[0] sda3[1]
      974446592 blocks [2/2] [UU]
      [==================>..]  check = 92.9% (905802048/974446592)
finish=45.0min speed=25419K/sec
  

All my googling only turns up posts from Ubuntu/Debian where there is a
cron job script to check the raid devices every first Sunday of the
month.  There is no such cron job configured on Fedora.

Anyone know what would have triggered this ? There are no other related
messages in the kernel log, and this has never happened to me before
F-11.

Thanks
Thomas

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