Re: what does md do if it finds an inconsistency?

[Bill Davidsen <davidsen@tmr.com>]

martin f krafft wrote:
>> The first time it reports that it found (and repaired) 128 items.
>> It does not mean that you now *have* 128 mismatches.
>>
>> The next run ('repair' or 'check') will find none (hopefully...)
>> and report zero.
>>     
>
> Oh, this makes perfect sense, thanks for the explanation.
>
> As the mdadm maintainer for Debian, I would like to come up with a way to
> handle mismatches somewhat intelligently. I already have the check
> sync_action run once a month on all machines by default (can be turned
> on/off via debconf), and now I would like to find a good way to react when
> mismatch_count is non-zero. I don't want to write to the components
> without the admin's consent though.
>   
That sounds right. Some arrarys have persistent mismatches if they are 
in use, you are unlikely to want to even attempt to take corrective 
action. You might want to have a config file and just run a program 
which reads the config regularly and acts based on what it finds.

-- 
bill davidsen <davidsen@tmr.com>
  CTO TMR Associates, Inc
  Doing interesting things with small computers since 1979