Tag Archives: R4HA
Companies are more cost-focused than ever before. While some industries have always had narrow margins, every company is looking for cost-savings wherever possible. Soft-capping can be scary, but you still need to save money. So what do you do? The solution is LPAR sets.
Following a hockey puck can be challenging. It moves really fast and it’s not always obvious what the next player is going to do. Wayne Gretzky famously said: “Skate to where the puck is going; not where it’s been”. The same analogy can be applied in most sports: football quarterbacks throw to where the receiver is going to be; not where they are. Your monthly 4-Hour Rolling Average (and resulting MLC) is also a moving target.
By now, many shops are using soft caps and/or taking advantage of special pricing offerings from IBM such as Mobile and zNALC. These are excellent ideas — but, as all performance and capacity professionals know, reducing one 4HRA bottleneck only creates another.
We’re all being asked to warm up to IT climate change. With narrowing profit margins, companies put pressure on every department to reduce costs. IT, too long seen only as a ‘cost center,’ is particularly vulnerable. While hardware costs may be seen as more manageable, software and people costs look like better targets. In this ‘storm’ of cost-cutting, you want an umbrella or a shelter to protect you from the risk of a lightning strike that will eliminate your job.
As a child, I was always impressed by how Tom Sawyer got other people to do his work for him. Instead of offering a trade, Sawyer flipped the challenge on its head. He made people feel like white-washing a fence was so pleasurable they should pay him for the privilege. I can only imagine what a speaker and salesman he would have grown up to be. What a gift! I think we all feel overworked much of the time. Between layoffs and retirements, most of us have more than one job we’re trying to manage with too many tasks not to our liking. Even in the rarified waters of complex IT projects, there are still tasks that can feel as unrewarding and uninteresting as white-washing a fence. Either it is a task that challenged you many years ago and no longer does, or it is simply uninteresting to you personally.
IBM’s Country Multiplex Pricing (CMP) became available last October. This is arguably the most significant software pricing announcement from IBM in ten years. Virtually every mainframe shop with more than one CPC/CEC should be interested in this announcement.
But don’t think you can just move to CMP and immediately see lower software bills – if you don’t do it right, your annual costs could actually be higher. Whether you’re in finance, capacity planning or performance, you don’t need to be a ThruPut Manager user to get significant value from this webinar.
In our last post, we reviewed the Automated Capacity Management (ACM) feature of ThruPut Manager and its ability to control the rolling 4-hour average (R4HA) by constraining or deferring specified workloads as the R4HA approaches the soft cap limit. But you may prefer more granular control in order to more fully leverage the opportunity for MLC savings, or you may not prefer to put caps in place at all, but still wish to reduce demand and enjoy the resulting cost savings.
Since the days when processor time was costly (and you input a job on punch cards), the CPU Busy metric has had intense focus. There are so many ways to look at the metric, all having vastly different meanings. Virtualization made it even more complicated. But for many in our field, this is still a very critical number. But is it the most important number?