From: Veljko <veljko3@gmail.com>
To: linux-raid@vger.kernel.org
Subject: Re: Linear device of two arrays
Date: Mon, 17 Jul 2017 12:16:34 +0200 [thread overview]
Message-ID: <38e015fa-a07c-8f1a-3a04-384d973966be@gmail.com> (raw)
In-Reply-To: <87shhyzhg5.fsf@notabene.neil.brown.name>
On 07/15/2017 02:12 AM, NeilBrown wrote:
> So command should be
>
>>> dd if=/dev/md2 of=SOMEWHERE/SAFE bs=1M skip=5626590
>
> and expect it to create a 3M file.
>
> Use this 'skip' number of the 'seek' number later.
>
> NeilBrown
Thanks, Neil, now it makes more sense.
I tried to create new linear device, but mdadm is complaining about
data-offset:
# mdadm -C /dev/md4 -l linear -n 2 --rounding=1M -e 1.0 --data-offset=0
/dev/md2 /dev/md3
mdadm: invalid data-offset: 0
I'm using Debian 8.8 if it makes any difference.
# mdadm -V
mdadm - v3.3.2 - 21st August 2014
What could be the problem?
Regards,
Veljko
next prev parent reply other threads:[~2017-07-17 10:16 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-05 15:34 Linear device of two arrays Veljko
2017-07-05 16:42 ` Roman Mamedov
2017-07-05 18:07 ` Wols Lists
2017-07-07 11:07 ` Nix
2017-07-07 20:26 ` Veljko
2017-07-07 21:20 ` Andreas Klauer
2017-07-07 21:53 ` Roman Mamedov
2017-07-07 22:20 ` Andreas Klauer
2017-07-07 22:33 ` Andreas Klauer
2017-07-07 22:52 ` Stan Hoeppner
2017-07-08 10:26 ` Veljko
2017-07-08 21:24 ` Stan Hoeppner
2017-07-09 22:37 ` NeilBrown
2017-07-10 11:03 ` Veljko
2017-07-12 10:21 ` Veljko
2017-07-14 2:03 ` NeilBrown
2017-07-14 1:57 ` NeilBrown
2017-07-14 2:05 ` NeilBrown
2017-07-14 13:40 ` Veljko
2017-07-15 0:12 ` NeilBrown
2017-07-17 10:16 ` Veljko [this message]
2017-07-18 8:58 ` Veljko
2017-07-20 21:40 ` Veljko
2017-07-20 22:00 ` NeilBrown
2017-07-21 9:15 ` Veljko
2017-07-21 11:37 ` Veljko
2017-07-22 23:03 ` NeilBrown
2017-07-23 10:05 ` Veljko
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