[linux-lvm] extending LVM for school project

[linux-lvm] extending LVM for school project

[Kai-Min Sung]

Hey everyone,
	I'm a masters student taking a distributed systems project class
and would like to work on extending LVM. My initial idea was to modify
LVM and allow it to create physical volumes using disks on remote nodes.
But then I read posts about using ENBD to achieve this. Do people on
this list have suggestions or ideas for a fun/interesting project that
could be accomplished within 10 weeks?

Regards,
Kai-Min Sung

Re: [linux-lvm] extending LVM for school project

[Jon Bendtsen]

Kai-Min Sung wrote:
> 
> Hey everyone,
>         I'm a masters student taking a distributed systems project class
> and would like to work on extending LVM. My initial idea was to modify
> LVM and allow it to create physical volumes using disks on remote nodes.
> But then I read posts about using ENBD to achieve this. Do people on
> this list have suggestions or ideas for a fun/interesting project that
> could be accomplished within 10 weeks?

I have the same plans, though it is a linuxkernel course. My plan was to
make a combination of LVM2 and PPDD (encryption). The idea was to make 
LVM support encrypted LV's that would need to be unlocked before usage,
in order to make blockencryption easier. 

LVM ontop of loopback encryption wont work, as i then need to encrypt
the
hole LVM, and some files are not sensitive.

loopback encryption ontop of LVM wont work, as the live snapshot feature
then doesnt work.

I had the idea to make it possible to encrypt the LE (Logical Extends)
so
that the LV was encrypted, because it would seem the most aprociate
place.
(i havent actualy read the LVM code yet, just the documentation and just
for LVM1.)



JonB

RE: [linux-lvm] extending LVM for school project

[Sharad Tiwari]

What about working towards making LVM cluster aware and making it more
available, putting in better failover mechanisms in a clustered
environment ...

If the work is done for for a hybrid setup (no need to have a shared
disk, or you may have a mix of shared disk and just a some disks
connected to one of the nodes in the network.) you can save the cost of
having to buy expensive disks and switches and can do the work with the
available setup in the university.

I am myself planning to work towards extending LVM2 for such a setup and
we can share our work : )O

Thanks,
Sharad.

> >-----Original Message-----
> >From: Kai-Min Sung [mailto:k@kaisung.com]
> >Sent: Wednesday, April 09, 2003 11:25 AM
> >To: Linux-lvm@sistina.com
> >Subject: [linux-lvm] extending LVM for school project
> >
> >Hey everyone,
> >	I'm a masters student taking a distributed systems project class
> >and would like to work on extending LVM. My initial idea was to
modify
> >LVM and allow it to create physical volumes using disks on remote
nodes.
> >But then I read posts about using ENBD to achieve this. Do people on
> >this list have suggestions or ideas for a fun/interesting project
that
> >could be accomplished within 10 weeks?
> >
> >Regards,
> >Kai-Min Sung
> >
> >
> >
> >_______________________________________________
> >linux-lvm mailing list
> >linux-lvm@sistina.com
> >http://lists.sistina.com/mailman/listinfo/linux-lvm
> >read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/