[mythtv-users] Linux software raid question
kgross at jensalt.com
Fri Jun 6 19:38:52 UTC 2008
> On Fri, Jun 6, 2008 at 9:19 AM, kim Gross <kgross at jensalt.com> wrote:
>> I have done it and it worked fine. I started out my array with 4 250
>> gig drives and 1 200 gig drive. When the array was first set-up all
>> drives were partitioned at 200 gig, and I was going to do a second array
>> of the extra 50 gigs on the other drives. About a week after I set up
>> the array I got a 250 gig drive to replace the 200, so I partitioned it
>> to the full 250, removed the 200 from the array and added the 250,
>> rebuilt the array.
> Thanks - glad to know that it in fact has been done!
> When you do the --add, mdadm didn't complain that all of the
> partitions were not the same size?
Not a single complaint. When it setup the original array it used the
smallest partition size.
>> Then I repartitioned the other drives and rebuilt
>> the array one at a time. After all drives were repartitioned and the
>> array rebuilt, I grew the array without any problems.
> I can find examples of adding disks in grow mode, but not any examples
> of how to change the size of the entire array.
> Something like: mdadm --grow /dev/md0 --size=<size of the sum of the
> bigger partitions in some strange units...>
I am trying to remember exactly what I did, but it was quite a while
ago. I think I just did the mdadm --grow /dev/md0, and it grew to the
max size it could with the new partition sizes. Then I grew the file
system to the larger size
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