Re: Superblock limits / conversion

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On Thu Nov 13, 2008 at 10:20:25AM -0500, Justin Piszcz wrote:

>
>
> On Thu, 13 Nov 2008, Robin Hill wrote:
>
>> On Thu Nov 13, 2008 at 09:46:23AM -0500, Ryan Wagoner wrote:
>>
>>> I have a RAID 5 array with 3 TB drives. When reading through the list
>>> I realized that the v0.90 superblock doesn't support arrays over 2TB.
>>> This means I can never grow this array to 4 drives?
>>>
>> That's my understanding, yes.
>
> I grew 400GiB drives in a raid5 configuration  from 1.8TiB to 3.3TiB one at 
> a time with the 0.90 superblock (I believe), is that limit correct?
>
> It was awhile ago but FYI.
>
You're right - it's definitely not correct.  I actually have a 2.7TiB
RAID array with 0.90 superblock right here as well *oops*.  According to
the manual pages, the limit is on _component devices_, not on the
overall RAID array.

Cheers,
    Robin
-- 
     ___        
    ( ' }     |       Robin Hill        <robin@xxxxxxxxxxxxxxx> |
   / / )      | Little Jim says ....                            |
  // !!       |      "He fallen in de water !!"                 |

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