Re: Cannot Free USB Disk Space

Peter Ross <petrosssit@gmail.com> writes:

BTW: I am reducing it to 2% since.. long long time. I haven't seen an issue arising from this at all.

Hm, for the purposes of avoiding fragmentation, I suppose the reserve amount needs to be proportional to <bytes written per interval> rather than the disk size. I assume the disk size has grown faster that write speed, and the 5% default was conservative even when it was introduced. So your result makes intuitive sense to me. OOC, Peter, what fragmentation does e2fsck -f report for your filesystems? With repeated filling as root or with 0% reserve, I've seen it go up to 20% or 30% (IIRC). NB: you can edit mke2fs to make new (ext) fs's default to 2%.