linux-ext4 - Re: [PATCH, RFC] mke2fs: get device topology values from blkid

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <yq1skeh5oqf.fsf@sermon.lab.mkp.net>
Date:	Sun, 20 Sep 2009 16:46:00 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Andreas Dilger <adilger@....com>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Eric Sandeen <sandeen@...hat.com>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH, RFC] mke2fs: get device topology values from blkid

>>>>> "Andreas" == Andreas Dilger <adilger@....com> writes:

Andreas> Yes, there is more chance that writing sector 7 (due to 4k
Andreas> sector r-m-w) will cause collateral damage, but the truth even
Andreas> today is that disks are not going to fail a single 512-byte
Andreas> sector at one time, but more likely 64kB (or whatever the
Andreas> remapping unit size is), so this isn't really introducing a new
Andreas> failure mode.

I keep hearing this disk drive "internal block size" of 32KB or 64KB
being mentioned.  And yet none of the drive firmware engineers I talk to
on a regular basis have ever heard of such a thing...

-- 
Martin K. Petersen	Oracle Linux Engineering
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html