>> > Roy> I still don't understand why people use partitions for RAID >> > when >> > Roy> the whole drive is used anyway. Partitions were invented to >> > Roy> partition things up and are of no use if you want to spend the >> > Roy> whole drive's space for RAID use (or otherwise). >> > >> > Because if I take a 2tb disk a I put a partition on there which is a >> > bit smaller than the full disk, if I then add a new 2tb (or any >> > other >> > size) disk which says it's 2tb, but it's really a bit smaller, then >> > I'm not screwed. I've had it happen. >> > >> Recently? AFAIK, all modern drives (everything over 320G-ish IIRC) use >> standardised sizes (i.e. any 2TB disk will present exactly the same >> number of sectors). I recall reading that all the manufacturers agreed >> to do this to prevent just this sort of issue, though I can't find a >> reference to it now. Roy> Indeed - you have to go back to smaller drives than those in Roy> current production to find varying sizes for equally labelled Roy> drive sizes. Who says it might never happen again, that drive makers go back to varying block counts for disks? Or SSDs? Better safe than sorry, and a gig of wasted space is cheap insurance. Plus, it gives you a place to put boot blocks for GRUB, etc. John -- 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