From: Zdenek Kabelac <zkabelac@redhat.com>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: block mapping
Date: Thu, 29 Sep 2011 15:42:59 +0200 [thread overview]
Message-ID: <4E8475E3.7020907@redhat.com> (raw)
In-Reply-To: <CALLzPKaWVR5=+S7QtHRpPBkDR5SVsZEAhbUn+G09o1S9JhjFOw@mail.gmail.com>
Dne 29.9.2011 15:35, Kasatkin, Dmitry napsal(a):
> Hello All,
>
> I would like to implement such block device, which can store
> additional information along with the block data.
> For example. so if file system has 4k block, I would like to store
> 4k+256b of additional information...
>
> Can such block device be implemented with device mapper?
>
Yes - i.e.the old snapshot target stores the block and it's remapping info
(thought the size info is much smaller then 256b)
Zdenek
next prev parent reply other threads:[~2011-09-29 13:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-29 13:35 block mapping Kasatkin, Dmitry
2011-09-29 13:42 ` Zdenek Kabelac [this message]
2011-09-29 14:10 ` Kasatkin, Dmitry
2011-09-29 14:19 ` Zdenek Kabelac
2011-09-29 14:27 ` Kasatkin, Dmitry
2011-09-29 13:55 ` Christoph Hellwig
2011-09-29 14:08 ` Kasatkin, Dmitry
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