From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Yedire, Sandeep" <syedire@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Ext2/3 Filesystem Analysis
Date: Wed, 9 Jun 2010 10:58:02 +0100 [thread overview]
Message-ID: <20100609105802.62d2ddce@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <AANLkTinfPl-JAP_4ZzdzJf2uyWcZ_0qfRQiT16_D8Pdd@mail.gmail.com>
> With Ext3:
> Filesystem block at Sector 0 is being updated more frequently at ratio
> of 5.5 to 6 times that of data block.
> Filesystem block(super block copies) are being updated at around
> 1.5times the frequency compared to data block.
>
> Has anyone come across this kind of behaviour with these filesystems
> on NAND Flash?
ext2/3 are not intended to be used with flash - they do not wear level,
in fact the journal and some other blocks will get very heavily used
compared to other blocks.
See the MTD drivers and related file systems/mapping layers (UBIFS etc)
next prev parent reply other threads:[~2010-06-09 9:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-09 9:41 Yedire, Sandeep
2010-06-09 9:58 ` Alan Cox [this message]
2010-06-09 12:06 ` Andi Kleen
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