Re: [gentoo-user] {OT} rdiff-backup: push or pull?

[Alex Schuster <wonko@wonkology.org>]

Grant writes:

> >> > Can I reserve 0% for root on my USB hard drive which is only
> >> > used for backups and does not contain an OS?
> >> 
> >> Yes:
> >> 
> >> mke2fs -m 0 /dev/usb-drive
> > 
> > Although a value > 0 helps against fragmentation. And when
> > rdiff-backup has failed because it ran out of space, regressing to
> > the previous sane state will need a little free space.
> 
> Good points.  Should 10GB (1% of 1TB) do it?

This I don't know. I use this value for large partitions of multimedia data, 
because I do not want to waste space (no matter how big the drives are, mine 
are always quite full), and performance should not be a big issue here. I 
keep the 5% default other partitions, like /home. BTW, you can also specify 
fractions like 0.5% if you like.

Another thing: Be sure to have enough inodes on the file system, I have run 
out of them in the past. Not only once.
Other than the percentage of reserved blocks, which can be changed with 
tune2fs -m, this value is fixed. If you have too few, you need to re-create 
the file system.

	Wonko