... demand fore-
cast and handing it off to the person responsible for capacity analysis and planning.
The capacity planner takes a look at the types of demand forecasted by the business
unit and ... spent
ptg59941 85
The Art of Scalability is by far the best book on scalability on the market today. The
authors tackle the issues of scalability from process...
... that the CTO
creates and runs are the lifeblood of the business units and the heart of the back
office systems that the CFO needs to do his or her job.
We have indicated that the CTO’s organizations ... vision are the CTO’s peers the people who rely on
the CTO for either the availability of the product or the back office systems that run
the company....
... of root cause) are often in conflict with each other. The rapid restoration of ser-
vice often conflicts with the forensic data gathering necessary for problem
management. Maybe the restart of ... consider
improving the process. These signs are derived from the three purposes of processes.
The first is if there is repetitive management of the same task. Recall that...
... efficacy. A quarterly or annual review
is appropriate and should be performed by the CTO/CIO and members of the
executive staff of the company.
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ORDER OUT OF CHAOS 153
follow the chat session, ... some
form of the RASCI model, you may also decide to require that the appropriate A, or
owner of the system in question, has signed off on the change and...
... administrators, and other JAD members; therefore, a very
informal setting is our preference. The formality should come from the fact that there
will be a go or no-go decision made on the architecture of the ... technology
organization, and all the processes that make these up. There are many different
ways of calculating the amount of risk, and we will cover some...
... successful scalability of your system and the
adoption of the performance and stress testing processes. As we cautioned previously
in the discussion of the stress test, the creation of the test ... tradeoff. This process of listing out the
tradeoffs, determining pros and cons, and then analyzing each one is the second
method of performing a tradeoff anal...
... ptg59941 85
358 CHAPTER 24 SPLITTING DATABASES FOR SCALE
The y-axis was described as a separation of work responsibility by either the type
of data, the type of work performed for a transaction, ... the time of the request by looking up the username and determining
the password or performing a geo-location test of the requestor IP address, we have
performed a...
... abstrac-
tion of the layered model of network architecture. It is used to describe the different compo-
nents of the network and how they are interrelated. There are seven layers, and starting from
the ... between the software application and the network and
includes implementation such as Hyper Text Transfer Protocol (HTTP).
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390 CHAPTER 25 CACHING F...
... data necessary to run the site) and 50 % of the copies
of each of the other sites (16 .5% of the data necessary to run the site for a total of an
additional 33%).
Let’s discuss the math behind our ... and the amortized fixed cost of the factory is divided by an increasing
volume of cars, the profit of those cars in aggregate start to offset the cost...