The only issue is the obvious one that the manufacturers are usually fairly vague about the exact usable size of each disk. If you bought half the disks from one manufacturer and half from another then you should be able to pair them up and use the minimum of the size of each pair.
In a similar vein, if the drives have different speeds and you may be wasting some performance. The faster drives may be forced to sit around waiting for an I/O operation to complete on the slowpoke. Jeff - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
