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I have just installed Ubuntu 12.04LTS on a separate HDD to dual boot with Window 7 x64. My Windows install is on an SSD and my system includes two 3TB Seagate drives in Raid 1. Raid is provided by the motherboard's Intel chipset. The SSD is on a different Sata chip by AsMedia. The mobo is an AsRock Z77-Pro4.

In Windows, I have the Intel Storage software that checks the Raid array for synch problems and any other issues. This works fine.

What I would like to ask is whether that same Raid array can be seen as one drive from Ubuntu. As it stands, Ubuntu recognises that I have TWO separate 3TB HDD, named /sda and /sdb.

Is there a way for Ubuntu to recognise that both these drives are in fact supposed to be seen as one and keep them in sync if I change or update something in one of them? Will the change be reflected in both of them once the array is accessed through Windows?

Thank you for any help.

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1 Answer 1

What you have is known as a Fake Raid. If you install the dmraid package, it will recognize the array and create a device in /dev/mapper/ that you can use to access it correctly. Be sure to use that device, and not the individual disks.

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