Re: [linux-lvm] Software RAID 5 Resizing and LVM

[David Greaves <david dgreaves com>]

Oh yes :)

It now has an 'add new disk to raid5 array and rebuild parity whilst 
keeping your data' feature :)
It has to be done 'offline'.

I'm actually just installing it at the moment.

see:
http://evms.sourceforge.net/user_guide/#resizemdreg

also:
http://marc.theaimsgroup.com/?l=evms-devel&w=2&r=1&s=raid5&q=b

David

Scott Serr wrote:

> I have lvm2 on RAID5.  With scratch disks you can do pvmoves to move 
> extents off the RAID stripe onto a scratch disk.  Then redo the raid 
> stripe wider (more disks).  Then move the extents back.  If you're 
> (clever) adding a disk and it's partitioned up a little you can use 
> some of the partitions as "scratch" while bringing other partitions 
> into the raid.
>
> Does EVMS have something more elegant?  That would be nice.
>
> -Scott