rawio
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Re: raw io and lvm

To: kippa <kippa@xxxxxxxxxxxxxxxx>
Subject: Re: raw io and lvm
From: "Matt D. Robinson" <yakker@xxxxxxxxxxxxxx>
Date: Tue, 30 May 2000 13:40:33 -0700 (PDT)
Cc: rawio@xxxxxxxxxxx
In-reply-to: <200005302030.NAA28306@xxxxxxxxxxxxxxxxxxxxxx>
Sender: owner-rawio@xxxxxxxxxxx
There should be a 'raw' application available with RH 6.2 which
will bind the raw device to some block device.

What you'd want is:

        mknod /dev/raw c 162 0
        mknod /dev/raw2 c 162 2

Then you'd run:

        raw /dev/raw2 /dev/sdb4

(or something to that effect).

You can get the latest raw.c from the util-linux RPM off of freshmeat.net.
If you still have problems finding it, send a mail here.

--Matt

On Tue, 30 May 2000, kippa wrote:
|>
|>Hello. 
|>
|>I have spent a day or two to see if we can get raw io working. I have
|>built a patched kernel (2.3.99-pre8, w/ SGI kiobuf-enhancement.patch).
|>Okay so far. I am unable to locate any specific instructions on making
|>the /dev/ entries for these raw io devices, but stunbled through with
|>mknod (i.e. mknod /dev/rawb c 8 16). Must be missing something tho...
|>Can't seem to get things working to these devices.
|>
|>And as if that weren't enough, I was wondering if this version of rawio
|>is happy with LVM?
|>
|>BTW, thanks for this effort. I hope the dmsdk folks and this group are
|>in cahoots...(can't imagine they aren't)...
|>
|>Heres to hoping we can make this all work.
|>
|>Kipp


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