On Friday November 14, dang@fprintf.net wrote:

On Thu, 2003-11-13 at 22:11, Neil Brown wrote:

quoted

RFCI == Request For Clever Ideas.

Hi all..

 I want be able to partition "md" raid arrays.
 e.g. I want to be able to use RAID1 to mirror sda and sdb as whole
 drives, and then partitions that into root, swap, other (or whatever
 suits the particular situation).

<snip>

Can't LVM do this?  I have a raid array (mirror) that is LVM'd into
multiple partitions.  It currently runs 2.4, but it should work fine
with 2.6, right?  All the rest of my boxes have 2.6 and LVM, but no raid
(no duplicate hard drives).

Fair question.
I want it to work with "standard" partition tables such as MSDOS
partitions etc.
I would like to be able to take a single drive that is being used and
has partitions on it, and to add an identical drive beside it, mirror
them, and get a mirrored pair that looked much like the original
drive.
There are issues with the raid superblock but assuming they can be
solved, I want partitioning to work easily.

Can LVM work happily with 'legacy' partitioning information?

NeilBrown