From: Alex Elder <aelder@sgi.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Diego Woitasen <diego@woitasen.com.ar>, xfs@oss.sgi.com
Subject: Re: Linux and DMAPI
Date: Fri, 05 Nov 2010 14:16:57 -0500 [thread overview]
Message-ID: <1288984617.2295.35.camel@doink> (raw)
In-Reply-To: <20101003061854.GA24293@infradead.org>
On Sun, 2010-10-03 at 02:18 -0400, Christoph Hellwig wrote:
> On Sat, Sep 18, 2010 at 09:08:16PM -0300, Diego Woitasen wrote:
> > Hi,
> > I'm looking for software that supports DMAPI on Linux. I haven't
> > found anything on the web. I need to implement HSM for a mail server,
> > to store old messages in a secondary storage.
> >
> > Are there something implemented? Open source or propietary one? I
> > prefer open source obviously...
>
> The XFS on disk format supports the required metadata for DMAPI, but the
> implementation for it never made it into the mainline Linux kernel. For
> years SGI provided a tree to add the support, but for the last few years
> the support bitrotted heavily. Alex promised to publush a tree with
> updated DMAPI support in the near future.
(Catching up on old mail, sorry I didn't respond earlier.)
I will keep my promise... I have it ported to the
2.6.32-stable and 2.6.33-stable branches at this point.
I was going to try to get up-to-date with the newest
kernels first, but am now setting my sights on getting
just what I have so far published. I will send an
announcement when it's available.
> You'll still need additional userspace support the to actually driver
> the migration. The xfstests suite has a minimal implementation for QA
> purposes as free software, but I don't think that's what your looking
> for. The main user of the XFS DMAPI support is SGI's DMF product,
> and at least a few years ago IBM's Tivoli Storage Manager also supported
> DMAPI.
As Christoph said, SGI offers DMF (Data Migration Facility),
but it is a proprietary product.
-Alex
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next prev parent reply other threads:[~2010-11-05 19:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-19 0:08 Linux and DMAPI Diego Woitasen
2010-09-20 6:47 ` Stan Hoeppner
2010-10-03 6:18 ` Christoph Hellwig
2010-11-05 19:16 ` Alex Elder [this message]
2010-11-03 21:44 ` Björn JACKE
2010-11-03 23:52 ` Timothy Sesow
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