From: Matthieu CASTET <matthieu.castet@parrot.com>
To: "katsuki.uwatoko@toshiba.co.jp" <katsuki.uwatoko@toshiba.co.jp>
Cc: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"dedekind1@gmail.com" <dedekind1@gmail.com>
Subject: Re: [PATCH] [MTD] NAND : SFTL (Simple Flash Transration Layer)
Date: Wed, 14 Dec 2011 10:29:57 +0100 [thread overview]
Message-ID: <4EE86C95.4050101@parrot.com> (raw)
In-Reply-To: <4CCCBA2E6B78F3katsuki.uwatoko@toshiba.co.jp>
katsuki.uwatoko@toshiba.co.jp a écrit :
> This is a new Flash Translation Layer for NAND Flash on mtd.
>
> mtd: SFTL (Simple Flash Translation Layer)
>
> Introduction
> ------------
>
> SFTL is a flash translation layer for NAND Flash on mtd_blkdevs
> interface. This is mainly-useful for read-oriented use (ex. a storage
> for a boot image) because this provides simple wear-leveling and
> scrubbing. The features are:
>
> * sftl provides wear-leveling (not static wear-leveling) and scrubbing.
> * sftl has one erase block size cache.
> * sftl uses 6 bytes in OOB for a logical address, status, version.
> * the erase block scan at init is fast.
> * a unit of read/write from/to MTD is an erase block.
>
What's the advantage over ubi and/or mtd over ubi.
Matthieu
next prev parent reply other threads:[~2011-12-14 9:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-14 7:03 [PATCH] [MTD] NAND : SFTL (Simple Flash Transration Layer) katsuki.uwatoko
2011-12-14 9:29 ` Matthieu CASTET [this message]
2011-12-15 11:38 ` katsuki.uwatoko
2011-12-17 16:13 ` Artem Bityutskiy
2011-12-22 10:38 ` katsuki.uwatoko
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