Re: [rdiff-backup-users] Suggestion for documentation change

[dean gaudet]

On Sat, 18 Nov 2006, dean gaudet wrote:

> yep -- but we could store an actual 0-length file instead... so we're not 
> wasting an entire disk block on many filesystems.  better to name it 
> .nodiff or something else so we can distinguish between an incompletely 
> written .diff.gz and a file with no differences.
> 
> there's another case of frequently changing metadata -- if you backup from 
> an LVM snapshot the device number changes now and then (because it's 
> dynamic).  the inode remains the same... this used to cause me a lot of 
> disk space wastage but i stopped using LVM and so the problem dropped in 
> priority for me.

actually this is probably going to be more of a problem in the newfangled 
world of dynamically assigned device numbers.

i wonder if there's any sane API we can use to get the UUID of a 
filesystem.

-dean