From: Steven Lembark <lembark@wrkhors.com>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] Re: [PATCH] 64 bit scsi read/write
Date: Sat, 14 Jul 2001 08:54:30 -0500 [thread overview]
Message-ID: <750880000.995118870@dizzy> (raw)
In-Reply-To: <E15LL3Y-0000yJ-00@the-village.bc.nu>
- Alan Cox <alan@lxorguk.ukuu.org.uk> on 07/14/01 09:45:44 +0100:
>> If, after a power outage, the IDE disk can keep going for long enough
>> to write its write cache out to the reserved vendor area (which will
>> only take 20-30 milliseconds) then the data may be considered *safe*
>> as soon as it hits writecache.
>
> Hohohoho.
Don't laugh, it works. A 10KRPM drive has enough inertia and
stored charge to write a full cyl in less time than the BFC's in
the switcher can discharge.
>> If I'm right then the only open question is: which disks do and
>> do not do the right thing when the lights go out.
>
> As far as I can tell none of them at least in the IDE world
Some SCSI's will use intertia to write a single cyl if the power
goes out. I've never seen a spec for IDE's that allows for this.
One more reason to use SCSI.
next prev parent reply other threads:[~2001-07-14 13:54 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-01 4:53 [RFC][PATCH] first cut 64 bit block support Ben LaHaise
2001-07-03 4:53 ` Ragnar Kjørstad
2001-07-04 2:19 ` [PATCH] 64 bit scsi read/write Ben LaHaise
2001-07-04 7:11 ` Alan Cox
2001-07-05 6:34 ` [linux-lvm] " Ragnar Kjørstad
2001-07-05 6:34 ` Ragnar Kjørstad
2001-07-05 7:35 ` [linux-lvm] " Ben LaHaise
2001-07-05 7:35 ` Ben LaHaise
2001-07-05 16:46 ` [linux-lvm] " AJ Lewis
2001-07-05 17:09 ` Eric M. Hopper
2001-07-10 13:45 ` Heinz J. Mauelshagen
2001-07-13 18:20 ` Albert D. Cahalan
2001-07-13 18:20 ` Albert D. Cahalan
2001-07-13 20:41 ` [linux-lvm] " Andreas Dilger
2001-07-13 20:41 ` Andreas Dilger
2001-07-13 21:07 ` Chris Wedgwood
2001-07-13 22:04 ` [linux-lvm] " Andreas Dilger
2001-07-13 22:04 ` Andreas Dilger
2001-07-14 0:49 ` [linux-lvm] " Jonathan Lundell
2001-07-14 0:49 ` Jonathan Lundell
2001-07-14 12:27 ` Paul Jakma
2001-07-14 14:48 ` Chris Wedgwood
2001-07-14 15:42 ` Paul Jakma
2001-07-14 17:18 ` Chris Wedgwood
2001-07-20 17:03 ` Stephen C. Tweedie
2001-07-16 18:53 ` Andreas Dilger
2001-07-16 19:13 ` Ragnar Kjørstad
2001-07-13 21:14 ` [linux-lvm] " Alan Cox
2001-07-13 21:14 ` Alan Cox
2001-07-14 3:23 ` [linux-lvm] " Andrew Morton
2001-07-14 3:23 ` Andrew Morton
2001-07-14 8:45 ` [linux-lvm] " Alan Cox
2001-07-14 8:45 ` Alan Cox
2001-07-14 13:54 ` Steven Lembark [this message]
2001-07-14 14:50 ` Chris Wedgwood
2001-07-14 15:41 ` [linux-lvm] " Jonathan Lundell
2001-07-14 15:41 ` Jonathan Lundell
2001-07-14 17:00 ` Chris Wedgwood
2001-07-14 20:11 ` [linux-lvm] " Daniel Phillips
2001-07-14 20:11 ` Daniel Phillips
2001-07-15 1:21 ` [linux-lvm] " Andrew Morton
2001-07-15 1:21 ` Andrew Morton
2001-07-15 1:53 ` [linux-lvm] " Daniel Phillips
2001-07-15 1:53 ` Daniel Phillips
2001-07-15 3:36 ` Chris Wedgwood
2001-07-15 6:05 ` [linux-lvm] " John Alvord
2001-07-15 6:05 ` John Alvord
2001-07-15 6:07 ` Chris Wedgwood
2001-07-15 13:16 ` [linux-lvm] " Ken Hirsch
2001-07-15 13:16 ` Ken Hirsch
2001-07-15 14:50 ` Chris Wedgwood
2001-07-15 22:14 ` [linux-lvm] " Daniel Phillips
2001-07-15 22:14 ` Daniel Phillips
2001-07-17 0:31 ` [linux-lvm] " Juan Quintela
2001-07-17 0:31 ` Juan Quintela
2001-07-15 13:44 ` [linux-lvm] " Daniel Phillips
2001-07-15 13:44 ` Daniel Phillips
2001-07-15 14:39 ` Chris Wedgwood
2001-07-15 15:06 ` [linux-lvm] " Jonathan Lundell
2001-07-15 15:06 ` Jonathan Lundell
2001-07-15 15:22 ` Chris Wedgwood
2001-07-15 17:44 ` [linux-lvm] " Jonathan Lundell
2001-07-15 17:44 ` Jonathan Lundell
2001-07-15 17:47 ` [linux-lvm] " Justin T. Gibbs
2001-07-15 17:47 ` Justin T. Gibbs
2001-07-15 23:14 ` [linux-lvm] " Rod Van Meter
2001-07-15 23:14 ` Rod Van Meter
2001-07-16 0:37 ` Jonathan Lundell
2001-07-16 15:11 ` Rod Van Meter
2001-07-16 8:56 ` Chris Wedgwood
2001-07-16 13:19 ` [linux-lvm] " Daniel Phillips
2001-07-16 13:19 ` Daniel Phillips
2001-07-16 14:26 ` [linux-lvm] " Heinz J. Mauelshagen
2001-07-15 15:32 ` Alan Cox
2001-07-15 15:32 ` Alan Cox
2001-07-15 15:33 ` Chris Wedgwood
2001-07-15 16:24 ` Chris Wedgwood
2001-07-16 1:08 ` Albert D. Cahalan
2001-07-16 8:49 ` Chris Wedgwood
2001-07-21 19:18 ` Alexander Griesser
2001-07-22 3:52 ` Albert D. Cahalan
2001-07-23 14:41 ` Daniel Phillips
2001-07-24 4:29 ` Albert D. Cahalan
2001-07-24 11:45 ` Daniel Phillips
2001-07-14 17:33 ` [linux-lvm] " Jonathan Lundell
2001-07-14 17:33 ` Jonathan Lundell
2001-07-15 4:02 ` Chris Wedgwood
2001-07-15 5:46 ` [linux-lvm] " Jonathan Lundell
2001-07-15 5:46 ` Jonathan Lundell
2001-07-15 17:10 ` Chris Wedgwood
2001-07-15 17:39 ` Jonathan Lundell
2001-07-26 2:18 ` Ragnar Kjørstad
2001-07-26 16:24 ` Andreas Dilger
2001-08-10 19:42 ` Ben LaHaise
2001-08-10 19:51 ` Ragnar Kjørstad
2001-08-10 20:02 ` Ben LaHaise
2001-08-11 0:18 ` Steve Lord
2001-08-11 21:44 ` Matti Aarnio
2001-07-04 10:16 ` [RFC][PATCH] first cut 64 bit block support Chris Wedgwood
2001-07-04 16:59 ` Ben LaHaise
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=750880000.995118870@dizzy \
--to=lembark@wrkhors.com \
--cc=linux-lvm@sistina.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.