[linux-lvm] Re: IBM to release LVM Technology to the Linux
Andi Kleen
ak at suse.de
Thu Jun 29 10:49:36 UTC 2000
On Thu, Jun 29, 2000 at 07:32:29AM +0200, Jean-Eric Cuendet wrote:
>
> > Another thing to consider is that the LVMS Architecture is really a
> > framework. It doesn't do much by itself. The vast majority of the
> > functionality of an LVMS based on this architecture lies in
> > the plug-in
> > modules that are loaded. This is what allows this
>
> Where stands the VFS layer? Behind LVMS? Or is it just a plugin for LVMS? Or
> is it replaced?
VFS is above file systems, LVM/block devices are below.
The layering is roughly like this
System calls / NFS server
VFS
Filesystems (sometimes bypassed)
Generic Page Cache (sometimes bypassed)
LVM / Raid / LVMS
elevator
IDE driver / HW RAID driver / SCSI drivers
-Andi
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