Re: Linux/MacOSX RAID5 dual boot

[Marek <mlf.conv@gmail.com>]

Hi Neil,

thanks for your answer. Do I understand it correctly that porting the  
md driver wouldn't be an option either?

Marek

On 9.7.2010, at 12:22, Neil Brown <neilb@suse.de> wrote:

> On Fri, 9 Jul 2010 12:07:56 +0200
> Marek <mlf.conv@gmail.com> wrote:
>
>> Hi,
>>
>> it seems that my email has hit top 5 ranking on google when searching
>> for "mdadm macosx", but it seems that due to some heavy discussion on
>> this mailing list it probably went unnoticed.
>> I would like to ask if someone would be able to elaborate whether
>> there is a possibility that mdadm would run on Darwin and if so,
>> whether a port would require a substantial rewrite.
>
> mdadm would not run on Darwin.  It only works with the 'md' driver  
> which is
> only in Linux.
>
> If you want both Linux and Darwin to be able to access the same  
> software RAID
> array, you would need to find a format that both understand.
> Probably the easiest way would be do discover how MAC OSX formats  
> RAID array
> and write support for that in mdadm.  Far from trivial, but probably  
> possible.
>
> A quick google suggest that RAID5 is not supported in OSX, so that  
> would not
> be an option.
>
> NeilBrown