Areca vs. ZFS performance testing.
kgysmits at gmail.com
Fri Jan 9 08:46:59 UTC 2009
Those numbers are pretty good, right? Who needs onboard XOR anyway :)
On Fri, Jan 9, 2009 at 03:30, Danny Carroll <fbsd at dannysplace.net> wrote:
> Koen Smits wrote:
> > My guess is it probably has to do with the way ZFS does cache flushes:
> > It might be worth it to disable the forced flushing and test again, if
> > you feel like it.
> I've just done this and the results are on the same page:
> The Excel version is here:
> It is a major improvement but I do not know 100% for sure if the disks
> are protected by the write cache/battery backup when in Passthrough mode.
> When creating a passthrough disk the "Volume Cache Mode" can be set to
> "Write Back" or "Write Through". This makes me feel as though the cache
> is being used and that when the cache is used, so is the BBU. But I
> cannot be 100% sure. I will send an email to Areca support to ask.
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