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by garyd on Tue 19th Jan 2010 17:05 UTC in reply to "RE[3]: RAID Z"
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As I said in another post, if I can take a soft-RAID5 array (E.g. on-board controllers) that was built under Windows and move it to Linux and back, its standard.

Yes, but that's only if you use a file system that both operating systems can read and the controller is recognized by both operating systems. It's only possible because the controller abstracts the array in to a logical volume that the PC can see -- not because it's a "standard" RAID configuration. The user land portion of the operating systems doesn't care about anything but the file system. The OS kernel and drivers take care of the hardware abstraction layer so if both platforms don't have drivers for your controller's chipset or can't read the file system format then you're out of luck. I don't see how any of this makes portability between operating systems easier merely because you chose a RAID. I could use fibre channel or iSCSI to mount a volume on either OS, too, but that's also accomplished via drivers and file system support as the OS still doesn't care anything about how the disks are organized by the storage manager.

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