dm-raid and resizing

[Tyler Aviss]

Nothing unusual in dmesg. I don't have anything else to show now as I
decided to try removing & recreating the md device (after rsyncing the
data). That worked fine and it now uses 1200MB.

So there doesn't seem to be any issues with the disk geometry etc, just
that mdadm doesn't do a "grow“ very nicely for whatever reason.
On Sep 13, 2013 3:28 PM, "David Thornton" <northdot9-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:

> What does fdisk -l say?
> What does the kernel say on boot? ( Dmesg or /var/log/messages )
>
> David
>
> On 9/13/13, Tyler Aviss <tjaviss-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
> > I recently upgraded a couple of RAID 2TB drives to some 3TB drives using
> > the format
> > Shutdown, pull old drive 1, start degraded
> > Add new drive 1 to RAID, wait for sync/rebuild
> > Shutdown, pull old drive 2, add new drive 2 to RAID, wait for
> sync/rebuild
> >
> >
> > I had a really small /boot partition, so for the new drives used a larger
> > set of partitions for /dev/md0
> >
> > However, for whatever reason, I can't grow to the full partition size.
> >
> > mdadm --grow --size=max only gives me around 750MB, even though the
> > component partitions (/dev/sda1, /dev/sdb1) are 1200MB.
> >
> >
> > Any ideas why it won't use the full capacity?
> >
> >
> > Cheers,
> >
> >
> > --
> > Tyler Aviss
> > Systems Support
> > LPIC/LPIC-2/DCTS/CLA
> >
> > "Computers don't make mistakes. They can, however, execute those provided
> > to them very quickly"
> >
>
> --
> Sent from my mobile device
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