Category Archives: Uncategorized

Mainframe load

Adam asked me to post something about mainframe load—“what’s the biggest source of load, what’s next, where’s broker, ADABAS, etc.” Let me start by showing a ten second snapshot I just took (2:10 pm) of CPU usage by job:

CPU BUSY   94%    10 SEC SAMPLE      4 CPUS ACTIVE

JES  UTCOM7      26% OF CPU BUSY    E8  <-- PRIORITY
JES  UTPRD2      11% OF CPU BUSY    EA  <-- PRIORITY
JES  UTPRD1       5% OF CPU BUSY    EA  <-- PRIORITY
STC  UTETB1       4% OF CPU BUSY    EE  <-- PRIORITY
JES  UTQUA1       4% OF CPU BUSY    DC  <-- PRIORITY
JES  UTCOM4       4% OF CPU BUSY    E8  <-- PRIORITY
JES  UTPRD5       4% OF CPU BUSY    EA  <-- PRIORITY
STC  UTNDVT       3% OF CPU BUSY    F4  <-- PRIORITY
JES  UTCOM2       3% OF CPU BUSY    E8  <-- PRIORITY
JES  UTQUA5       3% OF CPU BUSY    DC  <-- PRIORITY
JES  UTCOM8       2% OF CPU BUSY    E8  <-- PRIORITY
JES  SGNWFL9D     2% OF CPU BUSY    C0  <-- PRIORITY
JES  EWNWEOMO     2% OF CPU BUSY    C1  <-- PRIORITY
JES  UTCOM1       1% OF CPU BUSY    E8  <-- PRIORITY
JES  UTQUA4       1% OF CPU BUSY    DC  <-- PRIORITY
JES  UTPRD4       1% OF CPU BUSY    EA  <-- PRIORITY
JES  NRNW2041     1% OF CPU BUSY    C8  <-- PRIORITY
JES  EINWAEVE     1% OF CPU BUSY    C0  <-- PRIORITY

This is fairly typical of what we’ve been seeing this week. UTCOMx jobs are the COM-PLETEs; UTCOM7 is where most production Broker servers run, UTCOM2 is “Fiscal”, etc. They typically represent about a quarter to a third of the CPU being used during prime shift. UTPRDx jobs are the production Adabas databases, and they typically take up a fifth to a quarter of the CPU usage. UTQUAx are the quality assurance Adabas databases; their usage is highly variable. (Test Adabas databases are named UTTSTx; none of them was using enough CPU to show up when I took this snapshot.)

UTETBx jobs are Broker; UTETB1 is the production Broker nucleus. This is where the big difference has been during this semester’s registration: before I installed EntireX version 8 over the summer, Broker used about the same amount of CPU as COM-PLETE, but once I installed the new version, it dropped down to between a fourth and a sixth of that. If we were still at version 7 of Broker, it would have been taking up between 20 and 25% of the CPU, instead of around 5%.

I’ll also draw your attention to the priorities. (Those are hexadecimal numbers, by the way.) Broker has the highest priority, with production Adabas next and COM-PLETE next. Batch jobs are at the very bottom. The MVS dispatcher always selects the highest priority job that’s ready to use the CPU. If Broker were still using 20% or so of the CPU, the QUAL databases and the batch jobs would just be out of luck—they’d still be running, but they would never get a chance to use the CPU.

I’ll watch for any questions in the comments, or you can email me and I’ll post the answers.

Champions

This might be long. Let’s start with a quote from an article in the Economist linked by Tim Bray:

“I hate programmers,” replies this dyed-in-the-wool entrepreneur. “They only cause trouble.”

The article, by the way, is about the appalling state of IT at major banks, with some “buy vs. build” discussion. Anyway, since I’ve been saying my job is to cause trouble for quite a while, here I go again.

We can identify three basic paths the University could follow in moving to “open systems”:

  1. Convert to commercial products like Peoplesoft or Banner and stop developing our own administrative applications.
  2. Convert to shared source applications like Kuali and Sempai and collaborate on application development with those communities
  3. Select new development tools (programming languages, databases, etc.) and continue to develop UT-specific applications.

There are variations within these plans—especially the last one—but I think any roadmap we could come up with fits into one of these three categories. So what criteria should we use to pick one?

Continue reading

Being the best

When the Lawrence Hall Library on the 13th floor of the tower was closed, I went and looked through the books and took several. One of the ones I picked out was Peopleware by Tom DeMarco and Timothy Lister. I had heard about this book but never actually read it. So Friday afternoon I finished the task I was working on and didn’t really have time to start anything new before I needed to leave to catch my bus, so I picked it up and started reading. It’s just as good as I had heard.

I wanted to highlight this (from page 111):

The best organizations are not of a kind; they are more notable for their dissimilarities than for their likenesses. But one thing that they all share is a preoccupation with being the best. It is a constant topic in the corridors, in working meetings, and in bull sessions. The converse of this effect is equally true: In organizations that are not “the best,” the topic is rarely or never discussed.

The best organizations are constantly striving to be the best. This is a common goal that provides common direction, joint satisfaction, and a strong binding effect. There is a mentality of permanence about such places, the sense that you’d be dumb to look for a job elsewhere—people would look at you as though you were daft.

This reminds me of how things were when I first started working here. It’s been a while since I’ve felt that way, though.

Industrial strength

I’ve been thinking more about Nicholas Carr’s argument that IT has become a commodity. At first I thought his thesis was pretty compelling, except that I didn’t think IT had reached sufficient maturity to be a true commodity. A while ago, though, I had a thought that makes me wonder.

The two examples he uses of technologies that initially provided strategic advantages but matured into commodities were railroads and electricity. These are both signature technologies of the industrial revolution. One of the hallmarks of industrialization is mass production, where large numbers of identical products are manufactured and distributed at significantly lower costs than what applies to customized items.

However, we’ve now moved into the next, post-industrial stage of society, the information age. (Of course this has been driven to a large degree by computers.) A current trend is an increasing ability to provide somewhat customized products at mass-production prices, through “build-to-order” options and such. Will this apply to software too? When I’ve talked to people at shops that use commercial ERPs they’ve often indicated that they spend a lot of time and resources customizing the ERP to meet their needs, so I wonder if the analogy between IT and industrial-age technologies like railroads and electricity is fundamentally incorrect.

Links

Some interesting links that have come my way:

Who pays the hidden cost of University research? This is specifically focused on the University of California, but I wonder how it plays out here.

Texas students could be required to seek off-campus learning options. Closer to home. I thought the best criticism in the discussion in the article was “why require this when it’s going to happen organically?” I think higher education in general has been too slow in exploiting the options provided by modern communication technologies.

What Google Could Learn From Pixar. via DaringFireball, who highlights this:

Despite an unbroken string of 11 blockbuster films, Catmull regularly says, “Success hides problems.”

Ain’t that the truth. I think the successes we had in the 1990’s hid many of our problems well into this past decade.

SLA’s

The real meaning of the service level agreement

In today’s context, however, the SLA is mostly used as a get out of jail free card: as a limitation on service expectations by DP people; as a critical element in getting an easy ride from the auditors by both DP executives and the senior people they report to; and, as barrier keeping DP people in a distant and clearly subordinate role by executive management.

Basically the problem is that an SLA commits DP to meeting specified expectations – and thus both relieves DP of any need to exceed those expectations and acts as a barrier separating those on each side of the agreement. As a result its existence in an organization testifies to that organization’s ability to resist change by passing costs on its customers – meaning that its existence is characteristic of government and monopoly, or near monopoly, organizations; including industry level IT monopolies in which the employers compete but all use the same, essentially interchangeable, IT people, tools, and methods.

Those of us who went through the old DP training here at UT have always resisted SLA’s precisely because they feel like an unnatural barrier between us and the people we’re supposed to work with. We prefer to view “users” as colleagues rather than customers.

The more dangerous alternative is to go after real change now – but that’s extremely hard to do largely because you’ve got to pull off two miracles at once: change senior management perceptions, and change the way IT is run.

At the senior management level you’ll be dealing with people who mostly don’t want to hear it: and getting them to first internalize the reality that IT provides the organization’s “nervous system” and isn’t an arms length expense center at all, and then accept that DP’s relatively poor performance, organizational isolation, and freedom to escalate project costs have historically been due to the SLA centric management processes in place, is usually more of a challenge than most of us can handle.

We have a rather different history here, but I do get the feeling that a lot of senior management don’t want to hear about IT issues.

For real?

When this showed up in my RSS reader this morning, my first response was, “wait, today isn’t April 1!”

Emotion Markup Language (EmotionML) 1.0

Apparently it’s serious:

As the web is becoming ubiquitous, interactive, and multimodal, technology needs to deal increasingly with human factors, including emotions. The present draft specification of Emotion Markup Language 1.0 aims to strike a balance between practical applicability and scientific well-foundedness. The language is conceived as a “plug-in” language suitable for use in three different areas: (1) manual annotation of data; (2) automatic recognition of emotion-related states from user behavior; and (3) generation of emotion-related system behavior.

I’ll believe it when I see it.

More good questions

I just want to point to Ross’ response to my last post and Adam’s: Asking the right questions.

My nomination for the right questions (or some of them):
“What kind of ERP would help us make the right decisions?” (this does not only include Business Intelligence tools, but also almost everything that an ERP does)
…my answer to that, if you believe it, leads to…
“What kind of IT structure (people and equipment and software) would allow those collecting (or making) data and those making decisions to have a shorter chain (of people and processes) between them?”
“What kind of IT structure would enable for easier/more rapid modification to accommodate more rapid changes in the objectives of decision makers (e.g. switch from other objectives to budget cuts)?”

All good questions, although I’ll add that from the perspective of his job Ross focuses more on decision making than I would. Beyond decision making, our ERP needs to make sure certain things (like payroll) get done correctly and on time.

The right questions

Adam links to a great article about asking the right questions. This has been the frustration that informs many of my posts here: I think our management is asking (and answering) the wrong questions. Adam’s question is a good one; software development is not part of the University’s core mission. Here are a couple of related questions, with some thoughts:

Does our current in-house developed ERP save the University money and other resources, particularly in comparison to what the costs would be if we had a commercial ERP? Does it allow the University to pursue its mission in ways that would not otherwise be possible?

Unless the answer to at least one of these questions is “yes,” we really have no business developing our own ERP. I think that when the BSC says it considers our ERP strategic that is equivalent to saying that the answer to these questions is yes, but perhaps translating “is our ERP strategic?” to questions like this can clarify things.

The great thing about good questions is that answering them leads to more questions. If the answer to these questions is no, the next question should be, “how can we convert to a commercial ERP with the least cost and disruption?” If the answer is yes, then we can start asking questions like “What characteristics of our ERP give it these advantages?”  Answering that question will lead to questions about tools and, eventually, we can get to a point where it makes sense to ask questions like whether a migration to Open Systems will benefit the University. Instead, we’ve been handed the answer to the last question without any plan for how to do it or any real idea of what it means.

Strategy, again

When the AITL wrote up its recommendations on the Mainframe Migration Assessment for the BSC*, it included a section on long-term strategy:

The Architecture and Infrastructure Committee (AIC) has proposed a joint task force between the BSC, AITL and AIC to work on the development of an Administrative Systems Master Plan [SITAC 9.1]. We concur with that proposal. However, before work on the technical aspects of the plan begins, the business leadership of the University needs to provide strategic direction by answering questions including but not limited to:

  • Does the University view its ERP systems as a strategic advantage in advancing its mission?
  • What is our institutional strategy for making buy vs. build decisions?
  • What level of integration is desirable for our administrative systems?

Once driving factors such as these have been determined, selection of the most appropriate tools and technologies can proceed.

I wasn’t invited to the BSC meeting where this is discussed. All that the minutes say about the first question is:

As to the first question, the BSC was in full agreement that the University views its ERP systems as a strategic advantage in advancing its mission.

Well, today Adam posted a link to a great article, How Will You Measure Your Life? I’d like to highlight one particular paragraph:

A theory that is helpful … concerns how strategy is defined and implemented. Its primary insight is that a company’s strategy is determined by the types of initiatives that management invests in. If a company’s resource allocation process is not managed masterfully, what emerges from it can be very different from what management intended. Because companies’ decision-making systems are designed to steer investments to initiatives that offer the most tangible and immediate returns, companies shortchange investments in initiatives that are crucial to their long-term strategies.

In other words, just saying we consider our ERP strategic doesn’t mean anything if resources are not allocated accordingly. Frankly, when I look at what the University’s management has invested in over the past couple of years, I don’t get the impression that it sees a strategic advantage in our current ERP. A real strategy needs more than lip service.


*Full disclosure: I helped write this document.