Re: issue with internal bitmaps

[Bill Davidsen <davidsen@tmr.com>]

Bill Davidsen wrote:

> Neil Brown wrote:
>
>> On Thursday July 6, bluca@comedia.it wrote:
>>  
>>
>>> hello, i just realized that internal bitmaps do not seem to work
>>> anymore.
>>>   
>>
>>
>> I cannot imagine why.  Nothing you have listed show anything wrong
>> with md...
>>
>> Maybe you were expecting
>>   mdadm -X /dev/md100
>> to do something useful.  Like -E, -X must be applied to a component
>> device.  Try
>>   mdadm -X /dev/sda1
>>
> To take this from the other end, why should -X apply to a component? 
> Since the components can and do change names, and you frequently 
> mention assembly by UUID, why aren't the component names determined 
> from the invariant array name when mdadm wants them, instead of having 
> a user or script check the array to get the components?

Boy, I didn't say that well... what I meant to suggest is that when -E 
or -X are applied to the array as a whole, would it not be useful to 
itterate them over all of the components rather than than looking for 
non-existant data in the array itself?

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