Beolach,

That involves double the work!

On Sat, Mar 13, 2010 at 11:45 PM, Beolach [off-list ref] wrote:

Forgot to send to the list...

On Sat, Mar 13, 2010 at 13:42, Beolach [off-list ref] wrote:

quoted

On Fri, Mar 12, 2010 at 10:39, John Robinson
[off-list ref] wrote:

quoted

Before I have to go to a customer's premises and try it, I wanted to ask if
anyone had already done anything like this: I have a CentOS 5 system with
0.90 metadata and type fd partitions with RAID-5 over 3 discs. I want to
grow it by replacing the drives. If I dd the small partitions onto larger
ones on the new discs, then reboot, will the system recognise the RAID-5 -
which now has its metadata somewhere in the middle of the paritions not at
the end - so that I can then --grow?

I have no idea if this would actually work, but maybe try partitioning
the new, larger drives so the partitions are identical in size to the
old discs, copying the old discs to the new partitions, starting the
array with the new partitions, resizing the new partitions, and then
running --grow.  If mdadm can re-check the size of the member devices
of a running array at --grow time, this might work, but if it only
checks member device sizes at creation or assemble time, then it
probably won't.


Good luck,
Conway S. Smith

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       Majed B.
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