Re: FFS fragments (was: RAID stripe size)

[Simon Burge <simonb%NetBSD.org@localhost>]

Hi Edgar,

Edgar =?iso-8859-1?B?RnXf?= wrote:

> In any case, for all practical reasons, my question in answered because 
> the Borg repository holds mostly large files, which I learned are never 
> fragmented.

I have a many years old borg repository that now has 11,080 files.  Of
these, 2,626 are 4kB bytes or smaller and 3,469 are 16kB or smaller.
The median file size is 318kB.  I used 4kB frags and 32kB blocks on this
filesystem, but probably could have gone with 8kB/64kB.

I don't use RAID on this, but rsync nightly to a disk in a different box
in the same rack.

For write speeds, I assume (but don't know) that write speed isn't too
important since borg does compression and deduplication and other CPU
intensive things.

Cheers,
Simon.