How to install on a software raid with dmraid?

In linux 2.4 the ATARAID kernel framework provided support for Fake Raid (software RAID assisted by the BIOS). For linux 2.6 the device-mapper framework can do, among other nice things like LVM and EVMS, the same kind of work as ATARAID in 2.4. While the new code handling the RAID's I/O still runs in the kernel, device-mapper stuff is generally configured by a userspace application. It was clear that when using the device-mapper for RAID, detection would go to userspace.
Heinz Maulshagen created the dmraid tool to detect RAID sets and create mappings for them. The controllers supported are (mostly cheap) Fake-RAID IDE / SATA controllers which have BIOS functions on it. Most common ones are: Promise Fasttrack controllers as well as HPT 37x, Intel, VIA and LSI. Also serial ata RAID controllers like Silicon Image Medley and Nvidia Nforce are supported by the program.
I would like to ask if someone out there managed to set up a raid machine with dmraid, and I am asking for a full raid setup, nothing like raid for /home only.

Loosec;
I see that you have a handle on the dmraid package, recently upgraded I see.
I have an application for raid that does not involve booting with raid, data system only.
I desire to generate an archive for pacman using a raid array for purposes of install speed.
My first attempts used mdadm techniques and provided a software raid of hde and hdg drives which did not produce an improved hdparm read speed.
What changes to dmraid procedures will provide a non-bootable raid0 system which will archive pacman packages and provide combined raid read speed at least 50% greater than the normal 40MB/sec.?
Performance figures for raid0 with dmraid haven't been available in the forums. Perhaps these are disappointing?
Basically, how to make a raid0 system with dmraid but not make it bootable?
EDIT: Solved my problem with mdadm and mke2fs, fstab entry and /mnt/md entry.
Last edited by lilsirecho (2008-03-14 07:50:00)

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HIT HELPFUL ANSWER IF I HELP U
Message was edited by: abheesh

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