On 27/09/2012 18:00, Robbie Crash wrote:
But doesn't that also limit the maximum that the system will use for all
ZFS anything? So you'd be cutting all ZFS performance, not just limiting
what's used during scrub?

Yep, but if you fall into the category of guys who need the
machine for other work than running ZFS benchmarks (remember,
we are USERS....), that's a configuration worth to consider....
Good values are estimated best by thingking about the typical
and worst case usage of the machine, there's no general guideline,
a little bit of experimentation will tell you over time what's
best for your systems.
--
Dr.Udo Grabowski    Inst.f.Meteorology a.Climate Research IMK-ASF-SAT
www-imk.fzk.de/asf/sat/grabowski/ www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology            http://www.kit.edu
Postfach 3640,76021 Karlsruhe,Germany  T:(+49)721 608-26026 F:-926026

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