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Crucial m500 120GB as a ZFS slog

I re-did my benchmarks of my ZFS ZIL using a Crucial m500. The main reason I got this drive is that it has power-loss protection. And, it’s speeds are adequate to keep up with my gigabit Ethernet samba server.

Here are the results. My first run was decent, but not stellar:

I didn’t do a [ccie]zpool iostat[/ccie] during this run. This matches around what I was getting as a 4k random write. My second run was much better:

And it matches a typical zpool iostat:

Overall, I’m pretty happy. I was hoping to get at minimum 125 MB/s, which my gigabit Ethernet can’t really saturate.

I can now even try turning on forced sync writes in Samba.

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