AW: [dm-devel] Dm-setup Raid1 Mirror

Michael Thonke MThonke at wayne-europe.com
Tue Oct 26 10:51:29 UTC 2004


Okay I will look into it,
So far as I saw, i cant find the "mirror core" one..what kind of mirror
cores are supported and what they will do? I googled for it but no docs for
this..
I want to build a mirrorset on my nforce3 250GB raid ..so far when i use
nosync the two disks get different when i copy something to the dm-mirror
set..any cloues..should I use sync?

Thanks again
 

-----Ursprüngliche Nachricht-----
Von: dm-devel-bounces at redhat.com [mailto:dm-devel-bounces at redhat.com] Im
Auftrag von Heinz Mauelshagen
Gesendet: Dienstag, 26. Oktober 2004 11:31
An: device-mapper development
Betreff: Re: [dm-devel] Dm-setup Raid1 Mirror

On Tue, Oct 26, 2004 at 11:11:29AM +0200, Michael Thonke wrote:
> Hello,
> a while ago I asked how to setup a mirror target with device mapper. 
> It is missing some documentation how to do it in a proper way? Any 
> docs or How to's for this?

Source ;)

Read about table spec in mirror_ctr() in drivers/md/dm-raid1.c.

Eg.:

0 160086522 mirror core 2 64 nosync 2 /dev/sdc 0 /dev/sdd 0

would set up a set with 2 mirrors using a core (transient) dirty-log if you
feed it into "dmsetup create".

> 
> Thanks for help
> 
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Regards,
Heinz    -- The LVM Guy --

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Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen at RedHat.com                            +49 2626 141200
                                                       FAX 924446
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