The T2 launch was interesting, having technical staff on hand to ask technical questions was fun (as was the for those of you who are wondering why the questions are are getting seem so technical)

Is this Web 2.0?

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Bob Sneed

Bob is a fount of knowledge, I highly recommend any course/session/conversation with him. Unfortunately we are trying to pack what could be days of discussion into a tiny fraction of the time.

Bob was wondering if anyone had an LG phone charger, his is dead.

Why capacity: reduce capacity escalations, raise awareness

What is capacity: Submarine 100% underwater vs. at crush depth (the physical metaphor is what people understand) CPU 100% vs. unacceptable application performance.

Look for the Business problem not some easily observed numbers from the system (CPU, IOPS)

Capacity done wrong: over-provisioning

• HW is cheap, why not buy more (power, cooling)
• good if you sell computers
• better safe than sorry (problems pointed at insufficient HW(why didn't you buy more, it is cheap)

Bad QoS management in Small Iron == Bad QoS management on Big Iron

• Over provisioning reduces the incentive to "do it right"
• eco-reckless
• Inefficiencies on small hardware are MORE inefficient on big hardware, only you can waste more before it is a problem

Utilization has no "quality" dimension it is a measurement of busy. Utilization does not reflect the performance of useful work.

See Adrian's blog or paper (search on) "utilization is a virtually useless metric"

Without Business Metrics all you have are a bunch of numbers.

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During lunch Radia wandered b our table. I was wearing my xkcd sudo shirt yesterday and we talked briefly. Jim stopped her to say hello and thank her again for the session last night. Jim and Radia started talking about one of the stories from last night (determine the problem before solving it).

We started talking about network protocols and families and children and, and and. Then we got kicked out of the lunch room so we set up shot in the hallway for the next 1.5 hours and talked more about network protocols, security deployments and experience.

It was cool, THIS is what large face to face conferences are about. Serendipitous meetings and conversations that we have yet to mimic/facilitate/experience in virtual worlds.

Jim and Radia, identification will be left up to the reader

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Bob Sneed, of course it was absolutely as far as it could be from Capacity and immediately after.

Upgrade to S10U4 now :) (this could almost be the whole message)

Performance issues are: perceived + industry + real (all three must be addressed)

See b.s.c. timc "event driven utilization"

Application performance on Solaris 10 is NOT always better BUT can almost always be made to work better under S10 than with previous versions of Solaris.

2 presentations of 60 - 90 minutes done via speed reading

Upgrade to S10U4

Upgrade to S10U4

Upgrade to S10U4

Upgrade to S10U4

Upgrade to S10U4

Upgrade to S10U4

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