From: NeilBrown <neilb@suse.de>
To: Sven Hartrumpf <hartrumpf@gmx.net>
Cc: linux-raid@vger.kernel.org
Subject: Re: Using a newer mdadm version just for re-adding a device
Date: Mon, 4 Jun 2012 14:15:50 +1000 [thread overview]
Message-ID: <20120604141550.7db5cd4e@notabene.brown> (raw)
In-Reply-To: <20120531.192414.2085541500628127947.hartrumpf@gmx.net>
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On Thu, 31 May 2012 19:24:14 +0200 (CEST) Sven Hartrumpf <hartrumpf@gmx.net>
wrote:
> To answer my own question (about a RAID-1):
>
> Wed, 30 May 2012 19:38:15 +0200 (CEST), I wrote:
> > Is it safe to mix mdadm versions in the following scenario?
> ...
> > Now my question is:
> > Can I safely use the resulting binary (renamed to mdadm325 to avoid confusion)
> > to re-add the device and then continue to use the 3.2.2 package from openSUSE?
>
> I made a backup and tried the above: it worked perfectly.
I like it when people work out the answer themselves :-)
The only possible issue is that when 3.2.5 adds a new device it will try to
give it a larger "Data Offset". This won't confuse md, but it might confuse
you in later life.
About the only time you need to ensure you have a consistent version of mdadm
is when re-creating an array that died in some way and you want to recover
the data off it, but "-assemble --force" doesn't work.
NeilBrown
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prev parent reply other threads:[~2012-06-04 4:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 17:38 Using a newer mdadm version just for re-adding a device Sven Hartrumpf
2012-05-31 17:24 ` Sven Hartrumpf
2012-06-04 4:15 ` NeilBrown [this message]
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