[linux-lvm] Does LVM2 support RAID?

[Heinz J . Mauelshagen]

On Sun, Feb 02, 2003 at 08:53:32PM +0800, Rocky Lee wrote:
> 
> 
> 
>  Hi
> 
> 
>  Thank you Mr. Heinz   : - D
> 
>  I'm interesting in differents between  LVM1 and LVM2,

Some highlights IRT LVM2/device-mapper
(see www.sistina.com for download information):

- device-mapper has been accepted as the future generic mapping driver
  for the 2.5 kernel

- tools are LVM1 ondisk metadata compatible

- atomic updates on ondisk metadata and multiple metadata copies for
  extended resilience

- config file support for device name filters, logging levels and more

- LVM shell to avoid overhead on mass changes reloading the tools on
  every change

- generic device mapping with a much smaller driver (aka device-mapper)

- arbitrary mapping modules can be added at runtime

- RAID0 LVs can beextended beyond physical volume limits


>  I like LVM, it's very simple but powerful tool to maintain volumes.
> 
> 
> > > > If I use LVM2 will be better than use LVM1 + MD?
> >
> > > You still need to combine LVM2 with MD in order to have RAID > 0 (RAID0
> is
> > > supported natively as it is in LVM1).
> > > Because LVM2 offers various enhancements you migth still want to give it
> > > a try :-)
> >
> 
> Does LVM2 will support bad block reallocation?
>  It'll be great to use with MD.
> 
>  Have a nice day ^_^
> 
>  Rocky Lee
> 
> 
> 
> 
> _______________________________________________
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> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen at Sistina.com                           +49 2626 141200
                                                       FAX 924446
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