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
