linux-ext4 - [Bug 47151] provide a file system block size of 8KB for certain SSDs.

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Message-Id: <20120907181205.628C411FC3E@bugzilla.kernel.org>
Date:	Fri,  7 Sep 2012 18:12:05 +0000 (UTC)
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 47151] provide a file system block size of 8KB for certain
 SSDs.

https://bugzilla.kernel.org/show_bug.cgi?id=47151

Eric Sandeen <sandeen@...hat.com> changed:

           What    |Removed                     |Added
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                 CC|                            |sandeen@...hat.com

--- Comment #4 from Eric Sandeen <sandeen@...hat.com>  2012-09-07 18:12:05 ---
(In reply to comment #0)
> Sandisk support says that its 480GB SSDs have a block size of 8KB instead of
> the usual 4KB. Thus in order to use that SSD we would have to format with a
> block size of 8KB.

Do you have one of these devices?  I'd be a little surprised if it's really not
formattable with 4k blocks.  If you have the device, this might be interesting:

# blockdev --getss --getpbsz --getiomin --getioopt --getbsz /dev/sdX

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