BTRFS: The Good, The Bad and The Ugly

[Genes MailLists]

On 07/14/2011 10:17 AM, Ric Wheeler wrote:
> On 07/14/2011 02:54 PM, Josef Bacik wrote:
>> On Thu, Jul 14, 2011 at 9:08 AM, Genes MailLists<lists at sapience.com>  wrote:
>>>
>>>
>>>   I think RAID-5 support would be reasonably important to have too ... I
>>> dont think we want to have raid on top of btrfs ... right?
>>>
>>>   Ric - what is the current status of RAID-5 ?
>> This requires some other big changes that are disk format changes.  It
>> seems like the big block support will go into 3.1, so after that it
>> should be relatively shortly after that, possibly 3.2 or 3.3.  Thanks,
>>
>> Josef
> 
> And just to add in here, you can run btrfs on top of MD devices although that is 
> not the most popular thing to do currently.
> 
> Ric
> 

 Thanks Josef/Ric -

  Another (Q) - once the format changes, will there be tools to change
the online format of existing filesystems - or will we need to delete
and start fresh ?