Re: SET_BITMAP_FILE assembling raid1

[aristizb@ualberta.ca]

Hi Neil,

That is exactly the message I get in the kernel logs.

I tried ten times to assemble the array (waiting 2 seconds in between)  
with no luck, but after 2-3 minutes it worked.



Quoting "Neil Brown" <neilb@suse.de>:

> On Thursday September 17, aristizb@ualberta.ca wrote:
>> Hi,
>>
>> After have stopped a raid1, I try to assemble it with one device and
>> its bitmap; but I received the following error message:
>>
>> $mdadm --assemble --force /dev/md2003 --bitmap=/tmp/md2003bm
>> /dev/syntropy21/ian_dvol_200_0_1
>>
>> mdadm: SET_BITMAP_FILE failed.
>>
>> After 5 minutes I retry the command and it succeeds, assembling the
>> raid without any problems.
>>
>>
>> It looks like mdadm cannot use the file I specified for the external
>> bitmap, but this file is not in use by any other raid. Is there any
>> explanation on why assemble could fail to create the raid with the
>> specified bitmap?
>
> If it failed once and then succeeded later it is most like that md
> thought the file was already in use in some way.
>
> If so there should be a message in the kernel logs saying something
> like:
>   md2003: error: bitmap file is already in use
>
> Was there such a message?
>
> NeilBrown
>
>
>>
>>
>> Thank you.
>>
>>
>>
>> Juan.
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>
>