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Old 08-17-2007, 04:32 PM   #1
Runge_Kutta
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ext3 RAID 1 on a USB External Two Disk Hard Drive - Possible?


I am wondering if it is possible to have RAID1 on an ext3 filesystem in an external usb drive with two disks, like on this

Western Digital 1Terabyte External USB HD?

I know they come working out the box with RAID1 with like fat32 or something like that, but I deal with very large files sometimes, 2 to 4+ gigabytes - maybe more, and fat32 does not support that. I also would not like ntfs as I can't make every linux system at work support ntfs.

So, is there a way to have ext3 fs RAID1 on a usb external HD with two disks? Or is this new territory as I haven't been able to find reliable information on the internet . . .

Last edited by Runge_Kutta; 08-17-2007 at 04:35 PM.
 
Old 08-17-2007, 06:40 PM   #2
macemoneta
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Using software RAID, you can RAID any block devices, even loopback files (which I've done). So, yes, you can do this. I was running software RAID5 on 4 external drives up until a couple of weeks ago. No problems.
 
Old 08-17-2007, 06:57 PM   #3
Runge_Kutta
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so, for example, would a software RAID1 on the above mentioned Western Digital be visable to any similar Linux System?
 
Old 08-17-2007, 07:28 PM   #4
macemoneta
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All Linux systems with a 2.4 kernel or later support software RAID.
 
  


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