From: "Tomas France" <tomfra@centrum.cz>
To: linux-raid@vger.kernel.org
Subject: Re: Is it possible to grow a RAID-10 array with mdadm?
Date: Mon, 30 Jul 2007 12:24:03 +0200 [thread overview]
Message-ID: <0e3e01c7d293$d85086d0$332317ac@Cortex> (raw)
In-Reply-To: 18093.42484.733479.935581@notabene.brown
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" <neilb@suse.de>
To: "Tomas France" <tomfra@centrum.cz>
Cc: <linux-raid@vger.kernel.org>
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, tomfra@centrum.cz 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
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
>
next prev parent reply other threads:[~2007-07-30 10:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-27 21:10 RAID on partitions and partitions on RAID Cry Regarder
2007-07-28 20:51 ` Michal Soltys
2007-07-28 21:42 ` Michal Soltys
2007-07-29 7:26 ` Cry Regarder
2007-07-29 19:11 ` Michal Soltys
2007-07-29 18:09 ` Is it possible to grow a RAID-10 array with mdadm? Tomas France
2007-07-30 8:48 ` Neil Brown
2007-07-30 10:24 ` Tomas France [this message]
2007-07-30 11:07 ` Neil Brown
2007-07-30 11:51 ` Tomas France
2007-08-01 12:32 ` Bill Davidsen
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