On Tue, 29 Jul 2008 13:24:31 -0400 Ric Wheeler <rwheeler@xxxxxxxxxx> wrote: > > Jim pinged me about the use case for having our tool chain (parted > specifically) support devices with non-512 bytes sectors. > > Off the top of my head, the following is the list of existing or soon to > appear devices that could use this (taken from our thread last year, at > http://kerneltrap.org/mailarchive/linux-fsdevel/2007/3/11/317183): > > (1) R/W optical drives Magneto opticals for years. 640MB M/O is 2K sector size. There are two different partition table interpretations. One believes the table is 512 byte virtual sectors, the other believes the sectors are sectors. Welcome to the PC nuthouse... > (2) S390 dasd devices have a 4096 byte sector > (3) new 4096 byte disks (which intend to export a virtual 512 byte > sector) And which need a specific layout for performance - doubly so with raid overlaid on it. Also early SD type devices with 256 byte sectors simply don't work with our scsi midlayer. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
