AGILE DATA MANAGEMENT

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illumos and ZFS days

Back in October I was pleased to attend — and my employer, Delphix, was pleased to sponsor — illumos day and ZFS day, run concurrently with Oracle Open World. Inspired...
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ZFS trivia: metaslabs and growing vdevs

Lately, I’ve been rooting around in the bowels of ZFS as we’ve explored some long-standing performance pathologies. To that end I’ve been fortunate to learn at the feet of Matt...
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illumos hackathon 2012: user-land types for DTrace

At the illumos hackathon last week, Robert Mustacchi and I prototyped better support for manipulating user-land structures. As anyone who’s used it knows, DTrace is currently very kernel-centric — this...
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Webex utilities

I wish that none of our customers encountered problems with our product, but they do, and when they do our means for remotely accessing their systems is often via a...
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My New DTrace Favorite

The mantra as we initially developed DTrace was to make impossible things possible, not easy things easier. Since codifying that, the tendency toward the latter in developer tools has been...
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BTrace: DTrace for Java… ish

DTrace first peered into Java in early 2005 thanks to an early prototype by Jarod Jenson that led eventually to the inclusion of USDT probes in the HotSpot JVM. If...
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dtrace.conf(12) wrap-up

For the second time in as many quadrennial dtrace.confs, I was impressed at how well the unconference format worked out. Sharing coffee with the DTrace community, it was great to...
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DTrace OEL update

A few months ago I took DTrace on OEL for a spin after Oracle announced it. The results were ugly; as one of the authors of DTrace, I admit to...
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Delphix git integration

Tonight, my Delphix colleague Zubair Khan and I presented the integration we’ve done with git at the SF Bay Area Large-Scale Production Engineering meetup. When I started at Delphix, we...
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Hardware Engineer

Back at Fishworks, my colleagues had a nickname for me: Adam Leventhal, Hardware Engineer. I wasn’t designing hardware; I wasn’t even particularly more involved with hardware specs. The name referred...
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