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In BIOS, under SATA Configuration I can choose IDE, AHCI or RAID. Normally I choose RAID. After finished installing Windows 7, I wanted to setup RAID 1 (mirror), but Windows' disk management only showed me 1 disk (instead of two). Also, it said "no" under fault tolerance.
In fact, during the installation only disk 1's partitions were shown (disk 2 is unpartition).
I want to dual boot two systems. Should I change RAID to ACHI under the configuration prior to Windows 7's setup? I think software RAID is better (in general)? What is the best option (since doing dual boot).
2techie007 is correct. If you want RAID 1 protection for both OSs, you need to do the BIOS level RAID1 to make your disks fault tolerant. Then you can split the RAID into two volumes for Windows and Ubuntu. – Keltari – 2011-09-17T20:04:40.963
@techie007 thanks for the answer. yes. now a follow-up question. i can setup the raid 1 via BIOS. If I use GParted (a partition tool) to make several partitions prior to WIN7 installation, is that legal and recommended? Thanks – CppLearner – 2011-09-18T17:25:33.927
@JohnWong I'd say that's better asked as a new question. You can 'legally' partition your hard drives however you'd like. :) – Ƭᴇcʜιᴇ007 – 2011-09-18T18:19:04.653
thanks. i will:) ur answer is very helpful, however. – CppLearner – 2011-09-19T05:14:44.940