[Discuss] Linux Soup XII.2: LVM Fundamentals

[tmetro-blu at vl.com (Tom Metro)]

Jerry Feldman wrote:
> Christoph discusses LVM volume management...
> 
>     Part1: Overview of Logical Volume Management. Learn how to manage
> your storage and protect your data with LVM2. Add disks, create volume
> groups & logical volumes. Then protect your data by leveraging the
> native RAID capabilities of the modern LVM2.

I only caught the tail end of this part of the presentation and it made
mention of mdadm RAID being obsoleted by RAID functionality built-in to LVM.

The Wikipedia page, which may be obsolete, says:
http://en.wikipedia.org/wiki/Logical_Volume_Manager_%28Linux%29

that LVM can do RAID 0 or 1, but nothing higher.

The LVM2 wiki:
http://sources.redhat.com/lvm2/wiki/

references "DMRAID" (although it links to the wrong page):
http://sources.redhat.com/lvm2/wiki/DMRAID

DMRAID seems to be about interoperating with proprietary software RAID
solutions.

What's a good reference for information on the newer RAID capabilities
added to LVM2 and a high level description of how/why it is better than
mdadm?

 -Tom

-- 
Tom Metro
Venture Logic, Newton, MA, USA
"Enterprise solutions through open source."
Professional Profile: http://tmetro.venturelogic.com/