Re: sata and changing devices

[Alan Cox <alan redhat com>]

On Mon, May 26, 2008 at 07:56:27PM -0400, Gerry Reno wrote:
> specific piece of hardware.  But the tool output now is still using this 
> type of device identification (sda) which in the future is actually 

Nor did PATA except for the four "legacy" devices (hda-hdd) which have no
meaning for modern devices

> generate a backup state picture for physical SATA devices that 
> encompasses mbr, partition tables, raid configuraton, lvm configuration, 
> and filesystem mounting using mdadm, {pv|lv|vg}display, {f|sf}disk or 
> parted.  This was all very straightforward with PATA devices but is 
> anything but with these SATA devices.

SATA is hotplug, beyond "which is the boot volume" there isn't anything which
ties a drive to a given port. LVM/MD and friends all understand uuid/label for
good reason.