Re: SATA RAID 0 in Debian [solved]
Michael Schurter wrote:
> listrcv wrote:
> > Michael Schurter wrote:
> >
> >>>> The drives were setup on an old motherboard that died, and I
can't
> >>>> seem to find a way to get the crappy Windows SATA RAID utility
to
> >>>> recognize the drives as an existing RAID array.
> >>>
> >>>
> >>> Your screwed unless you can find a board that has the same IDE
> >>> controller on it
> >>
> >> Actually, I found a great Ubuntu forum on the topic, and the
command
> >> "dmraid -ay" autodetected the RAID without problems. Quite
> >> impressive! I was able to copy files off of the RAID and then I'm
> >> going to set it back up in Windows so both Windows and Linux can
see it.
> >
> > Huh? How does that work? Did you set it up as Windoze software RAID
on
> > the old board (independant of the controller on that board), and
Ubuntu
> > features access to such a RAID?
>
> Windows requires software to see the RAID, however I'm not sure if it
> was a software RAID. Sorry for lack of detail, but its a point on
which
> I'm still unclear myself.
>
> I do know there's a very simple RAID setup screen you can access
after
> BIOS during boot, so the motherboard has some innate RAID
capabilities.
> Obviously I'm not an expert in the ways of RAID arrays. :) All I
> know is the result was pretty miraculous.
>
> Michael Schurter
I'd like to just post some general info about what I've found out about
'dmraid' (Device-Mapper RAID);
http://wiki.debian.org/DebianInstaller/FAQ
http://www.linuxmanpages.com/man8/dmraid.8.php
and a very detailed and current link;
"Serial ATA (SATA) chipsets ? Linux support status"
(Revised: Mon Mar 13 10:09:21 PST 2006)
http://linuxmafia.com/faq/Hardware/sata.html
Also - from what I know about Windoze XP and RAID; XP requires you to
"Press F6 to load any 3rd party SCSI/RAID [SATA] Drivers" during the
very beginning of the Installation/Setup process. This is usually done
using a Floppy disk, but one can also 'slipstream' the whole
installation, including drivers for SATA/RAID/SCSI controllers.
Besides the fact that many Mobo Onboard RAID Controllers utilize and
purport to be "hardware' RAID, and while they do utilize a Chip (either
part of the Chipset, or a Separate 3rd Party Chip) - they are usually
"software' based and run (emulated in a sense). I *guess* similar to
what Winmodems do/did.
Negating that circumstance - there's also windoze so-called "Dynamic
Disks", which ranges from using DynamicDisks as a LVM, to creating
softRAID arrays - but which have many limitations as far as
creating/breaking, setting up, reverting back to "Basic Disk" ...not to
mention that I *think* one needs to use a *Server Based* Windoze
installation (Win2K or Win2K3), just to set up a software RAID using
XP.
Regards
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