From: Phil Turmel <philip@turmel.org>
To: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
Cc: Oliver Schinagl <oliver+list@schinagl.nl>, linux-raid@vger.kernel.org
Subject: Re: Expanding array with multiple devices
Date: Sat, 02 Mar 2013 12:11:16 -0500 [thread overview]
Message-ID: <513232B4.7030404@turmel.org> (raw)
In-Reply-To: <1801783.8.1362233235807.JavaMail.root@zimbra>
On 03/02/2013 09:07 AM, Roy Sigurd Karlsbakk wrote:
>> While expanding an existing raid is as simple as mdadm --add, followed
>> by an mdadm --grow, How would you go about this when expanding it with
>> multiple devices.
>
> Given a RAID-5 on /dev/sd[bcde], I'd do
>
> # mdadm --add /dev/md0 /dev/sd[fghi]
> # mdadm --grow --level=6 --raid-devices=8
>
> No need to create a new RAID and then move the data.
You missed the bit where he states he needs to use mkfs to switch
filesystem features.
Phil
next prev parent reply other threads:[~2013-03-02 17:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-28 20:27 Expanding array with multiple devices Oliver Schinagl
2013-03-01 6:52 ` Mikael Abrahamsson
2013-03-02 11:52 ` Oliver Schinagl
2013-03-02 14:07 ` Roy Sigurd Karlsbakk
2013-03-02 17:11 ` Phil Turmel [this message]
2013-03-02 17:15 ` Roy Sigurd Karlsbakk
2013-03-02 17:22 ` Phil Turmel
2013-03-02 17:31 ` Mikael Abrahamsson
2013-03-02 19:14 ` Roy Sigurd Karlsbakk
2013-03-03 3:22 ` Mikael Abrahamsson
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