Re: [linux-lvm] LE/PE Question

["Heinz J . Mauelshagen" <mauelshagen@sistina.com>]

On Tue, Nov 19, 2002 at 09:50:39PM +0100, kalle@idlar.nu wrote:
> Hi!
> 
> Im researching some diffrent what-if-scenarios to be more prepared if our lvm fails.
> and I'm wondering..Is there any utility to find which file (or fs inode) a specific LE/PE is assigned to?

# lvdisplay -v /dev/YourVG/YourLV # displays mapping logical -> physical extents
# lvdisplay -v /dev/YourPV # displays mapping physical -> logical extents

>   What I would like to acomplish it to be able to know what files are located on a specific disk in a 
> 
> VG/LV. So if I detect that a disk in a LV is starting to fail I would like to know which files are more 
> 
> likely to be non-recoverable.

You need to 'ask' the filesystem, where it puts stuff ;)
I.e. "debugfs /dev/YourVG/YourLV" for ext[23].

> 
> 
> Thanks!
> 
> 
> Regards
> Kalle
> 
> 
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> 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@Sistina.com                           +49 2626 141200
                                                       FAX 924446
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