Marc MERLIN <marc@xxxxxxxxxxx> > New drive is 4 sectors shorter, so I assume I can't use it as a replacement in my md5 > array because it's 4 sectors too short, or does swraid5 not need the last few sectors > of a drive? 4 sectors shorter are common for external hard drives (sold from seagate,toshiba,etc). if you attach the drive to internal sata port or normal usb enclosure(not sold from disk vendors),you will get back normal disk size. so maybe you want to check what connect to your disk.