From: Johannes Stezenbach <js@convergence.de>
To: Mike Black <mblack@csi-inc.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Hotswap IDE
Date: Fri, 6 Feb 2004 00:39:34 +0100 [thread overview]
Message-ID: <20040205233934.GC10450@convergence.de> (raw)
In-Reply-To: <000701c3ebe6$ac5b35d0$c8de11cc@black>
Mike Black wrote:
> I use a removable IDE chassis to allow me to mirror my primary drive for offsite storage.
> I'd like to hotswap the IDE but can't seem to get the drive to allow DMA access after restarting it.
> A reboot is necessary for DMA access.
> I'm using idectl from hdparm-5.4 which generates the following hdparm commands:
> /sbin/hdparm -U 1 /dev/hda
> /sbin/hdparm -R 0x170 0 0 /dev/hda
I haven't tried myself, but Alan Cox did:
Linux 2.4.22-rc2-ac3
o Finish off the core IDE hotplug support (me)
| If your hardware supports it you can now
| hdparm -b0 /dev/hdc change drive hdparm -b1 /dev/hdc
Maybe that works better than -U/-R ?
Johannes
next prev parent reply other threads:[~2004-02-05 23:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-05 12:50 Hotswap IDE Mike Black
2004-02-05 23:39 ` Johannes Stezenbach [this message]
2004-02-06 19:02 ` Bill Davidsen
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