From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Mario 'BitKoenig' Holbe <Mario.Holbe@TU-Ilmenau.DE>
Cc: linux-raid@vger.kernel.org
Subject: Re: Random bit flips - better data integrity needed
Date: Sun, 20 Sep 2009 17:55:15 -0400 [thread overview]
Message-ID: <yq17hvt5lj0.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <slrnhbcijr.f3a.Mario.Holbe@darkside.dyn.samba-tng.org> (Mario Holbe's message of "Sun, 20 Sep 2009 17:30:03 +0200")
>>>>> "Mario" == Mario 'BitKoenig' Holbe <Mario.Holbe@TU-Ilmenau.DE> writes:
>> With regards to data storage, one major step in this direction is the
>> "integrity" patch that went into the kernel last winter (2.6.28?).
Mario> That's far from being end-to-end. Actually, it is even against
Mario> the end-to-end argument. End-to-end means from application to
Mario> application.
Oracle has a custom (as in non-POSIX) async I/O submission interface
called oracleasm. Hooking into my Linux kernel block integrity
infrastructure I can protect the I/O all the way from within the Oracle
DB context in userland to the drive firmware and back.
We're working on a generic (as in POSIX-like) interface that allows data
integrity passthrough for normal applications.
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2009-09-20 21:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-19 16:10 Random bit flips - better data integrity needed [Was: Re: mismatch_count != 0 on multiple hosts] Greg Freemyer
2009-09-20 9:36 ` John Robinson
2009-09-20 9:43 ` Majed B.
2009-09-20 15:30 ` Mario 'BitKoenig' Holbe
2009-09-20 21:55 ` Martin K. Petersen [this message]
2009-09-20 21:48 ` Random bit flips - better data integrity needed Martin K. Petersen
2009-09-22 11:18 ` Random bit flips - better data integrity needed [Was: Re: mismatch_count != 0 on multiple hosts] Matthias Urlichs
2009-10-13 21:45 ` Bill Davidsen
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