Re: Crash while increasing RAID5 from 3 disks to 5, array won't build.

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On Thu Dec 04, 2008 at 06:49:02PM -0500, Sean Hildebrand wrote:

> On Wed, Dec 3, 2008 at 3:45 PM, Sean Hildebrand
> <silverwraithii@xxxxxxxxx> wrote:
> 
> Having an issue right now, I am unsure of what's going on. When I
> resized my array from 5 disks to 3 some months ago, the filesystem was
> automatically made smaller.
> 
Resized how?  I didn't think mdadm allowed shrinking of arrays.  Even if
it did, it couldn't do so unless the filesystem was smaller than the
final array size.

> I'd assume the same happens when growing the array. However, conky and
> my file manager report that the partition is 1.35TB. fdisk and gparted
> output the correct 2.73 TB.
> 
> Does mdadm automatically resize the partition when increasing the
> number of disks?
> 
I think you mean filesystem rather than partition here (unless you're
using a partitioned array).  mdadm doesn't resize the filesystem as the
means of doing this is filesystem-specific.  You'll need to use the
appropriate tool (resize2fs, resize_reiserfs, xfs_growfs) to do this
yourself.

HTH,
    Robin

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

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