From: Friedrich Lobenstock <fl@fl.priv.at>
To: Linux RAID Mailing Liste <linux-raid@vger.kernel.org>
Subject: background scanning for media defects (was Re: RAID-6 support in kernel?)
Date: Wed, 05 Jun 2002 23:25:59 +0200 [thread overview]
Message-ID: <3CFE81E7.3010301@fl.priv.at> (raw)
In-Reply-To: 20020605194239.GB6516@colombina.comedia.it
Luca Berra wrote:
> well, yes and no
> a kernel thread could do compare and check parity and also
> when we have the support for this in md try to do a write and
> see if the disk error correction code can relocate the bad sector.
> also a 'dd if=/dev/hda of=/dev/null' would just sit a production
> machine, while we could give it a minumum and maximum bandwidth
> to use like we do in reconstruction.
The 3Ware IDE-Raid controllers have that kind of background scanning
functionality if their diskmanager daemon is running. I guess it
just sends the controller chip the start scanning command, which then
does its job.
Would be good if linux md had that too.
--
MfG / Regards
Friedrich Lobenstock
next prev parent reply other threads:[~2002-06-05 21:25 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-02 23:01 RAID-6 support in kernel? Roy Sigurd Karlsbakk
2002-06-02 23:01 ` Roy Sigurd Karlsbakk
2002-06-03 0:33 ` Derek Vadala
2002-06-03 8:24 ` Roy Sigurd Karlsbakk
2002-06-03 8:24 ` Roy Sigurd Karlsbakk
2002-06-03 9:25 ` Derek Vadala
2002-06-03 9:25 ` Derek Vadala
2002-06-03 9:31 ` Vojtech Pavlik
2002-06-03 14:52 ` Kasper Dupont
2002-06-03 14:52 ` Kasper Dupont
2002-06-03 14:55 ` Vojtech Pavlik
2002-06-04 12:49 ` Roy Sigurd Karlsbakk
2002-06-04 15:49 ` Pavel Machek
2002-06-04 15:49 ` Pavel Machek
2002-06-04 22:27 ` Kasper Dupont
2002-06-04 22:27 ` Kasper Dupont
2002-06-05 9:36 ` Roy Sigurd Karlsbakk
2002-06-05 9:36 ` Roy Sigurd Karlsbakk
2002-06-05 9:28 ` Roy Sigurd Karlsbakk
2002-06-04 15:49 ` Pavel Machek
2002-06-05 2:51 ` jw schultz
2002-06-03 17:33 ` Gregory Leblanc
2002-06-03 19:53 ` Ross Vandegrift
2002-06-04 20:20 ` Jakob Østergaard
2002-06-05 7:57 ` Luca Berra
2002-06-05 10:53 ` Jakob Østergaard
2002-06-05 19:42 ` Luca Berra
2002-06-05 21:25 ` Friedrich Lobenstock [this message]
2002-06-04 18:50 ` Bill Davidsen
2002-06-04 18:50 ` Bill Davidsen
2002-06-06 1:19 ` Derek Vadala
2002-06-06 8:28 ` Kasper Dupont
2002-06-06 8:28 ` Kasper Dupont
2002-06-06 11:57 ` Helge Hafting
2002-06-03 7:35 ` Kasper Dupont
2002-06-03 8:28 ` Roy Sigurd Karlsbakk
2002-06-03 8:57 ` Kasper Dupont
2002-06-04 11:11 ` Allan Sandfeld
2002-06-04 12:51 ` Kasper Dupont
2002-06-04 13:58 ` Allan Sandfeld
2002-06-12 8:13 ` Kasper Dupont
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