Thanks for the answer Neil!
The man page for mdadm does not mention it because it is not supported.
<<
It doesn't actually even mention the possibility to create a RAID-10 array
(without creating RAID-0 on top of RAID-1 pairs), yet from the info I found,
a lot of people have been using it for quite a while. Almost as if it was a
complete secret ;) As for the RAID-10 growing / layout change - I'd
absolutely love to see that implemented in the (hopefully near) future.
IMHO, RAID-10 is becoming very popular because of the falling hard drive
prices.
Tomas
----- Original Message -----
From: "Neil Brown" <[EMAIL PROTECTED]>
To: "Tomas France" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Monday, July 30, 2007 10:48 AM
Subject: Re: Is it possible to grow a RAID-10 array with mdadm?
On Sunday July 29, [EMAIL PROTECTED] wrote:
Hi everyone,
Is it possible to add drives to an active RAID-10 array, using the "grow"
switch with mdadm, just like it is possible with a RAID-5 array? Or
perhaps
there is another way?
I have been looking for this information for a long time but have been
unable to find it anywhere. The man page for mdadm does not mention
RAID-10
at all so that didn't help either. Has anyone tried it?
The man page for mdadm does not mention it because it is not
supported.
There are several reshape options that I would like to implement
including
- raid5 -> raid6
- shrinking raid4/5/6
- raid0 -> raid5
- changing chunksize/layout of raid4/5/6
- raid10 growing and layout change
unfortunately I haven't yet found/made the time.
Patches are always welcome :-)
NeilBrown
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