From: Ming Lei <ming.lei@redhat.com>
To: "Matias Bjørling" <Matias.Bjorling@wdc.com>
Cc: "Hans Holmberg" <Hans.Holmberg@wdc.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"Damien Le Moal" <Damien.LeMoal@wdc.com>,
"Dennis Maisenbacher" <dennis.maisenbacher@wdc.com>,
"Ajay Joshi" <Ajay.Joshi@wdc.com>,
"Jørgen Hansen" <Jorgen.Hansen@wdc.com>,
"andreas@metaspace.dk" <andreas@metaspace.dk>,
"javier@javigon.com" <javier@javigon.com>,
"slava@dubeyko.com" <slava@dubeyko.com>,
"kbusch@kernel.org" <kbusch@kernel.org>,
"hans@owltronix.com" <hans@owltronix.com>,
"mcgrof@kernel.org" <mcgrof@kernel.org>,
"guokuankuan@bytedance.com" <guokuankuan@bytedance.com>,
"viacheslav.dubeyko@bytedance.com"
<viacheslav.dubeyko@bytedance.com>, "hch@lst.de" <hch@lst.de>
Subject: Re: [LSF/MM/BPF BoF]: A host FTL for zoned block devices using UBLK
Date: Mon, 6 Feb 2023 23:32:44 +0800 [thread overview]
Message-ID: <Y+EdnFJ1IwQakFsr@T590> (raw)
In-Reply-To: <BN8PR04MB6417488E54789C123E6EAA4AF1DA9@BN8PR04MB6417.namprd04.prod.outlook.com>
Hi Matias,
On Mon, Feb 06, 2023 at 02:34:51PM +0000, Matias Bjørling wrote:
> > Maybe it is one beginning for generic open-source userspace SSD FTL, which
> > could be useful for people curious in SSD internal. I have google several times
> > for such toolkit to see if it can be ported to UBLK easily. SSD simulator isn't
> > great, which isn't disk and can't handle real data & workloads. With such
> > project, SSD simulator could be less useful, IMO.
> >
>
> Another possible avenue could be the FTL module that's part of SPDK. It might be worth checking out as well. It has been battletested for a couple of years and is used in production (https://www.youtube.com/watch?v=qeNBSjGq0dA).
>
> The module itself could be extracted from SPDK into its own, or SPDK's ublk extension could be used to instantiate it. In any case, I think it could provide a solid foundation for a host-side FTL implementation.
Great, I will take a look, and thanks for the sharing!
Thanks,
Ming
next prev parent reply other threads:[~2023-02-06 15:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-06 10:00 [LSF/MM/BPF BoF]: A host FTL for zoned block devices using UBLK Hans Holmberg
2023-02-06 12:49 ` Ming Lei
2023-02-06 12:54 ` Ming Lei
2023-02-06 14:34 ` Matias Bjørling
2023-02-06 15:32 ` Ming Lei [this message]
2023-02-06 18:31 ` Bart Van Assche
2023-02-07 9:40 ` Matias Bjørling
2023-02-07 9:32 ` Hans Holmberg
2023-02-07 10:31 ` Nitesh Shetty
2023-02-07 12:49 ` Ming Lei
2023-02-06 18:58 ` Bart Van Assche
2023-02-07 12:11 ` Hans Holmberg
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