xfs_fsr on Buffalo Linkstation

Matthias Andersson matthias.andersson at pp1.inet.fi
Sun Oct 11 23:23:10 UTC 2015


Hello,

Very well, I might schedule the job once a month.

//Matthias

On 11.10.2015 22.23, Hin-Tak Leung wrote:
> I am curious about your plan of running it on a weekly basis.
>
> For a lightly used system, that seems a bit too frequent; for a system
> that's constantly being used, that may be justifiable, but
> then running it that frequently will probably (1) affect the performance
> of the system for regular tasks (during that hour your system's,
>   responsiveness will probably be bad, and that's a couple of hours
> per week, not a small proportion of time), (2) increase tear-and-wear.
>
> In any case, I'd probably only do a defrag every few months,
> or keep occupancy below a certain level (say, 60-70%) to keep
> fragmentation low though... just my 2 cents.
>
> --------------------------------------------
> On Sun, 11/10/15, Matthias Andersson <matthias.andersson at pp1.inet.fi> wrote:
>
>   Hello,
>
>   I own a Buffalo Linkstation Pro Quad 12 Tb which runs the
>   busybox OS.
>
>   The NAS uses the XFS filesystem and provides the xfs_fsr
>   defragmentation
>   tool. The problem I've noticed is that the program doesn't
>   obey the -t
>   (seconds) parameter, I've tried xfs_fsr -t 3600 /dev/md2 and
>   it runs
>   over an hour. I then tried with 8 hours but it didn't stop
>   there either.
>   The -p 1 flag seems to work...
>
>   I'm trying to set up a cron-job to run xfs_fsr for a couple
>   of hours on
>   a weekly basis.
>
>   //Matthias Andersson
>
>



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