On Mon, Jan 02, 2012 at 10:27:50PM -0500, Brandon Allbery spake thusly: > The hardware/software distinction, in practicality, is "does the OS need to > know that it's actually doing RAID?" Because there are a lot more failure > modes if it does, and more complex situations (as already mentioned, boot > drives are a major one).
In what way does Linux need to know it is doing software RAID to boot from a mirror? It boots the kernel, grabs the initfs from one of the drives, assembles the RAIDs, pivots root to whatever I tell it, usually /dev/md0 which is just another block device to the OS. Perhaps what you say is true if you want to RAID 5 the boot drive but I would avoid that situation precisely to avoid such complications. -- Tracy Reed http://tracyreed.org Digital signature attached for your safety.
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