[Discuss] LVM Re: A really interesting chain of functionality

[Richard Pieri]

On Sep 27, 2011, at 1:07 PM, Tom Metro wrote:
> 
> As a non-storage professional, my option is that LVM snapshots were
> glued-on as an afterthought, and have limited applications. ZFS
> snapshots (and similar in NetApp filers) were designed into the
> low-level file system architecture.

I can see why one could draw that conclusion.  LVM snapshots aren't filesystem snapshots like you get with AFS, ZFS and NetApp Filers.  LVM snapshots are block device snapshots that resemble AdvFS's transaction log mechanism.

--Rich P.