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Registered Member #179
Joined: Thu Feb 16 2006, 02:08AM
Location: Hagerstown, Maryland - Close to Prime Outlets
Posts: 287
You'd most certainly have to copy all the data off. And then, only if your controller supports mixed drives, do you stand a chance. Generally, *not* recommended...
Registered Member #65
Joined: Thu Feb 09 2006, 06:43AM
Location:
Posts: 1155
In this situation a software LVM is better than fake RAID as you can dynamically add/remove drives on the set as needed.
Note there is a higher cpu load in LVM setups, but they are better than fake RAID offered by motherboard manufacturers. Note LVM snapshots make incremental backups easier too, but do not set your ext4 boot partition on the LVM.
Registered Member #2901
Joined: Thu Jun 03 2010, 01:25PM
Location:
Posts: 837
RAID5 is bad RAID, whether it's software or hardware.
If you just want to convert them into a single filesystem for some reason (since you say all 3 drives have data on them) an union filesystem works. I use AUFS with a patched Linux kernel (Liquorix, don't know if they have AUFS compatible kernels for 3.x yet though) for a fileserver. Don't know if there is something similar for Windows.
Alternatively this software might be of interest :
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RAID 5 conversion
