Re: Software RAID

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Author: Thomas Cameron
Date:  
To: plug-discuss
Subject: Re: Software RAID
In order to get RAID, volumes spanned across multiple disks and that sort of
stuff in Windows boxes, you have to convert the disks to "Dynamic" disks.
Unfortunately, when you convert a disk to dynamic, it makes it impossible to
access the disk with Linux (or Windows 98 or anything else but Windows
2000/XP). So, you can have either RAID under Linux or RAID under Windows,
but not both on the same disk.
--
Regards,
Thomas Cameron, RHCE, CNE, MCSE, MCT
----- Original Message -----
From: "steve wiebelhaus" <>
To: <>
Sent: Friday, May 07, 2004 3:22 PM
Subject: Software RAID


> I dual boot WinXP Pro, and Suse 9. Right now, I have two 120GB drives, one
> is partitioned with Linux swap, Linux root, winxp (NTFS), home (FAT32).

The
> home partition is where I keep all my documents, used from both OS. The
> second drive is backups of the home dir, and for media storage.
> I would like to do a software RAID setup. But it seems that for windows to
> do that, I can't have Linux partitions on either of the drives. Does

anyone
> know if this is true?
>
> I would like to have both the Linux and WinXP partitions setup with

software
> RAID 0 I think, whatever, I want these two partitions setup for higher

speed
> access. So things will programs and stuff will start faster, load games
> faster. But I want the home dir, the FAT32 partition, to be on RAID
> mirroring, so if one drive goes out, I still have all my documents.
>
> Anyone know if this is even possible?
>
>
>
> Hompage www.public.asu.edu/~swiebel/index.html
>
>
>
> >Perhaps this is the comeback?
> >http://unthought.net/Software-RAID.HOWTO/Software-RAID.HOWTO.html
> >
> >According to that, Linux can do Software RAID 0, 1, 4, 5, 10.. I glanced
> >quickly at the MS KB regarding Dynamic Disk and it seems like it is

simply
> >RAID 0, 1, 5 so I am not sure what the difference is?
> >
> >I did a search on Google and found a benchmark on a software RAID 5 setup
> >(11x120GB 5400RPM drives) using Promise Ultra66 controllers and a 1.6Ghz
> >Pentium 4 processor and it had 93MB/sec read and 26MB/sec write.. Given

the
> >number of disks, the single processor and 5400RPM drives, that sounds
> >pretty good to me.
> >
> >Joe
> >
>
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