Re: HW Raid Question

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On Mon, Sep 28, 2009 at 7:07 PM, Drew <drew.kay@xxxxxxxxx> wrote:
>> You can reboot the server and access the controller's configuration
>> tool and see if you can grow it or not. Not all controllers offer that
>> option.
>
> I've already been through the controller's tools looking for an
> answer. I can see an option to grow via adding new disks but nothing
> about growing via disk replacement. At the time, I figured that might
> be an automatic function of the ServeRAID but having found nothing
> from IBM or Adaptec that say either way I'm still stumped.

Which controller do you use exactly? We planned to add support for
growing/shrinking logical volumes to Einarc, but it's not quite ready
for prime time yet. It might be supported soon, though.

What exactly do you want to replace? I guess you want to do some
procedure to gradually change all discs in the array and then grow a
logical disc? Like that:

1. Remove one small disc => array is degraded
2. Add one bigger disc, rebuild array
3. Repeat steps 1-2 for all discs
4. Grow physical extents
5. Grow logical volume

?

-- 
WBR, Mikhail Yakshin
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