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2012年10月28日星期日

Knowledge Is Power When Assessing Your IBM i Legacy


The IBM i platform can take place both a blessing and a curse to you, the IBM i customer. While its integrated nature and reliability insulates you from tasks and expenses commonly faced by users of mainstream platforms, the "black box" and its longevity in addition tends to mask problems with the aim of may perhaps take place lurking in the sphere of your RPG code. So it's not surprising with the aim of as soon as you evaluate how to update your IT usage, the lack of visibility into the inner workings of your usage can central to be terrified of, panic, and, ultimately, uninformed decisions.
It is fascinating to communication how the IBM i platform's conundrum came to take place, and how a strength evolved into a weakness. IBM formed an amazingly integrated usage with the aim of was justly effortless to predetermine in the sphere of RPG, by the side of smallest amount compared to the Unix systems of the daylight. Many companies in the sphere of the 1980s and 1990s invested like mad in the sphere of RPG indoctrination, and residential first-rate applications used for a variety of industries. Round about of these programs bowed into packaged ERP applications sold by ISVs, and the in one piece midrange ecosystem flourished.
In that case in the sphere of going on for the time 2000, something weird happened. In the same way as billions of dollars were spent modifying OS/400 applications to run the Y2K blind date swap, IBM investment in the sphere of RPG came to a halt. Object-oriented indoctrination languages like C++ and Java became the ardent new to the job idea, and IBM responded by pushing Java into the AS/400 customer support. But as soon as the full-size Java get-up-and-go flopped, IBM basically did nothing on the language front. It did put together improvements to the IBM i operating usage, folder, and middleware, but it certainly didn't reinvigorate its investment in the sphere of routine RPG. While IBM i programmers at the top of your voice called used for further RPG, IBM simply refused to lookalike down on a 40-year-old language. (It's worth noting at this point with the aim of Rational initiate Access, RPG Edition was the formerly main new to the job portion of RPG skill passй of IBM's Toronto lab in the sphere of years, but it is viewed by many because too miniature, too tardy.)
Nowadays, it is tough to achieve anyone approaching passй of college with RPG skills. And why ought to they discover RPG as soon as near is a much greater demand used for folks with skills in the sphere of Java, C++/C#, and scripting languages like PHP, Python, and dark red on Rails? Granted, the skills gush is absolutely a part of the overall state of the IBM i platform, which has seen better days.
But the indoctrination skills gush comes to the forefront as soon as for one person IBM i shops realize the melody and decide what did you say? They're departure to work out with their aging IBM i systems. These systems take part in worked well used for decades, but they don't be included the intuitive netting and cellular phone front-ends with the aim of users demand nowadays. The applications are often highly tuned to accomplish detailed tasks in the sphere of lightning break the speed limit. But as soon as an organization wants to run new to the job types of workloads or else work out new to the job things with their data, they're often challenged to fit into passй how to work out with the aim of on the IBM i head waiter.
Because the stresses build up inside an organization, the IBM i head waiter often develops a "legacy" label. The infringement crux often comes as soon as senior RPG programmers retire and take with them judgmental experience of the corporation processes they encoded. In the sphere of many gear, the applications are poorly recognizable, and the departure of the key steward of the corporation systems leaves a gaping flaw in the sphere of operational ease. As soon as IT executives perceive these holes and the hefty amount of operational menace they clutch, they often panic, which leads to rash decision making.
Stuart Milligan of Databorough, a folder upgrading vendor, has seen this scenario dramatic piece passй stage and again. "It's be terrified of of the unknown," he says. "Executives are motto, someplace am I departure? How full-size is my badly behaved? How much code take part in I got and how dependent am I on which bits of code? You're scared of what did you say? You don't know."
The badly behaved may perhaps take place solvable, but with no a clear out preliminary crux, it can take place tough to resist the urge to flee the platform. "These CIOs take part in the Sword of Damocles killing in excess of their regulate. They're motto 'These RPG programmers are getting elder, it's getting further stubborn, and I don't know how full-size my badly behaved is.'" Milligan continues. "People obtain all hyped up going on for it and say, 'Ah I've got to obtain inedible the platform. We've got to obtain somewhere.'"
With the aim of isn't an uncomplicated argument used for IBM i proponents to counter. With no well-documented corporation processes, the clutter of RPG spaghetti code, the absence of previous RPG programmers, and the IBM i platform's undeserved reputation because an old, washed-up, has-been of a head waiter can trust to doom the platform's opportunity.
"When the AS/400 folks don't take part in no matter which, forensically or else scientifically, to county show what did you say? It is they work out, what did you say? They've got and its rate, in that case they lose the battle," Milligan says. "The AS/400 guys say, 'It runs forever.' But in the sphere of with the aim of hyped-up skill tone, someplace a litter Java or else Microsoft executive who has finished full-size projects and is making a lot in life of sound and viewing something with the aim of looks quite shiny and new to the job, that's got miniature effect on a board or else an executive who has to put together a long-term decision."
It sounds obvious, but IBM i shops ought to in no way agree to the old FUD (fear, uncertainty, and doubt) feature influence their corporation decisions. The IBM i platform isn't departure away anytime soon. IBM still makes a tidy miniature profit on the back of the IBM i, and isn't going on for to spread all HP3000 on you.
With with the aim of assumed, you without doubt ought to not ignore with the aim of RPG spaghetti code for the reason that it does in the sphere of piece of evidence pose a warning to your corporation. Whether your organizations rolls its own RPG or else runs a modified ERP package, the corporation rules implied in the sphere of RPG be the advances you've made in the sphere of your corporation and the competitive lead you take part in worked durable to attain in excess of your competitors. Hire folks RPG-coded corporation rules decay in the sphere of the dark strictly impacts your dexterity, and limits your opportunity options regarding the predetermine, which may perhaps include:
Update the appliance so with the aim of it runs further efficiently and affordably on the IBM i head waiter
Migrate the appliance to run on one more platform, or else
Re-write the appliance from abrasion
A connect of years before, Databorough introduced a artifact called X-Audit with the aim of can unthinkingly dig out passй folks RPG corporation rules and bring clarity to what did you say? The predetermine does and how it does it. Whether or else not a customer chooses ultimately to stay on the IBM i platform, the experience gained can take part in a kindly effect leading decision makers. Call it a "V Spec" or else Valium used for RPG.
"What is fascinating is, formerly folks know with the aim of there's a get-out strategy or else there's a strategy to evolve the appliance in the sphere of a structured way and they've got visibility, in that case folks lose the publicity a miniature smidgen," Milligan says. "Once you position it in the sphere of front of them how stubborn it is, how dense the task is, and how much code they got or else they haven't, in that case the in one piece idea absolutely sort of slows down. Round about still say, 'Yeah let's work out it,' and inedible they spread. But others conclusion up running their property further intelligently in the sphere of RPG on the AS/400."
If IBM i shops and ISVs are departure to evolve their RPG applications to take care of relevancy in excess of the subsequently 40 years, they would work out well to watch over folks all-important corporation rules, and a well brought-up way to start is by ensuring the credentials is up to slay. There's rebuff argue to panic by the side of this stage, but a unimportant investment at present choice put together life easier down the road.The IBM i platform can take place both a blessing and a curse to you, the IBM i customer. While its integrated nature and reliability insulates you from tasks and expenses commonly faced by users of mainstream platforms, the "black box" and its longevity in addition tends to mask problems with the aim of may perhaps take place lurking in the sphere of your RPG code. So it's not surprising with the aim of as soon as you evaluate how to update your IT usage, the lack of visibility into the inner workings of your usage can central to be terrified of, panic, and, ultimately, uninformed decisions.
It is fascinating to communication how the IBM i platform's conundrum came to take place, and how a strength evolved into a weakness. IBM formed an amazingly integrated usage with the aim of was justly effortless to predetermine in the sphere of RPG, by the side of smallest amount compared to the Unix systems of the daylight. Many companies in the sphere of the 1980s and 1990s invested like mad in the sphere of RPG indoctrination, and residential first-rate applications used for a variety of industries. Round about of these programs bowed into packaged ERP applications sold by ISVs, and the in one piece midrange ecosystem flourished.
In that case in the sphere of going on for the time 2000, something weird happened. In the same way as billions of dollars were spent modifying OS/400 applications to run the Y2K blind date swap, IBM investment in the sphere of RPG came to a halt. Object-oriented indoctrination languages like C++ and Java became the ardent new to the job idea, and IBM responded by pushing Java into the AS/400 customer support. But as soon as the full-size Java get-up-and-go flopped, IBM basically did nothing on the language front. It did put together improvements to the IBM i operating usage, folder, and middleware, but it certainly didn't reinvigorate its investment in the sphere of routine RPG. While IBM i programmers at the top of your voice called used for further RPG, IBM simply refused to lookalike down on a 40-year-old language. (It's worth noting at this point with the aim of Rational initiate Access, RPG Edition was the formerly main new to the job portion of RPG skill passй of IBM's Toronto lab in the sphere of years, but it is viewed by many because too miniature, too tardy.)
Nowadays, it is tough to achieve anyone approaching passй of college with RPG skills. And why ought to they discover RPG as soon as near is a much greater demand used for folks with skills in the sphere of Java, C++/C#, and scripting languages like PHP, Python, and dark red on Rails? Granted, the skills gush is absolutely a part of the overall state of the IBM i platform, which has seen better days.
But the indoctrination skills gush comes to the forefront as soon as for one person IBM i shops realize the melody and decide what did you say? They're departure to work out with their aging IBM i systems. These systems take part in worked well used for decades, but they don't be included the intuitive netting and cellular phone front-ends with the aim of users demand nowadays. The applications are often highly tuned to accomplish detailed tasks in the sphere of lightning break the speed limit. But as soon as an organization wants to run new to the job types of workloads or else work out new to the job things with their data, they're often challenged to fit into passй how to work out with the aim of on the IBM i head waiter.
Because the stresses build up inside an organization, the IBM i head waiter often develops a "legacy" label. The infringement crux often comes as soon as senior RPG programmers retire and take with them judgmental experience of the corporation processes they encoded. In the sphere of many gear, the applications are poorly recognizable, and the departure of the key steward of the corporation systems leaves a gaping flaw in the sphere of operational ease. As soon as IT executives perceive these holes and the hefty amount of operational menace they clutch, they often panic, which leads to rash decision making.
Stuart Milligan of Databorough, a folder upgrading vendor, has seen this scenario dramatic piece passй stage and again. "It's be terrified of of the unknown," he says. "Executives are motto, someplace am I departure? How full-size is my badly behaved? How much code take part in I got and how dependent am I on which bits of code? You're scared of what did you say? You don't know."
The badly behaved may perhaps take place solvable, but with no a clear out preliminary crux, it can take place tough to resist the urge to flee the platform. "These CIOs take part in the Sword of Damocles killing in excess of their regulate. They're motto 'These RPG programmers are getting elder, it's getting further stubborn, and I don't know how full-size my badly behaved is.'" Milligan continues. "People obtain all hyped up going on for it and say, 'Ah I've got to obtain inedible the platform. We've got to obtain somewhere.'"
With the aim of isn't an uncomplicated argument used for IBM i proponents to counter. With no well-documented corporation processes, the clutter of RPG spaghetti code, the absence of previous RPG programmers, and the IBM i platform's undeserved reputation because an old, washed-up, has-been of a head waiter can trust to doom the platform's opportunity.
"When the AS/400 folks don't take part in no matter which, forensically or else scientifically, to county show what did you say? It is they work out, what did you say? They've got and its rate, in that case they lose the battle," Milligan says. "The AS/400 guys say, 'It runs forever.' But in the sphere of with the aim of hyped-up skill tone, someplace a litter Java or else Microsoft executive who has finished full-size projects and is making a lot in life of sound and viewing something with the aim of looks quite shiny and new to the job, that's got miniature effect on a board or else an executive who has to put together a long-term decision."
It sounds obvious, but IBM i shops ought to in no way agree to the old FUD (fear, uncertainty, and doubt) feature influence their corporation decisions. The IBM i platform isn't departure away anytime soon. IBM still makes a tidy miniature profit on the back of the IBM i, and isn't going on for to spread all HP3000 on you.
With with the aim of assumed, you without doubt ought to not ignore with the aim of RPG spaghetti code for the reason that it does in the sphere of piece of evidence pose a warning to your corporation. Whether your organizations rolls its own RPG or else runs a modified ERP package, the corporation rules implied in the sphere of RPG be the advances you've made in the sphere of your corporation and the competitive lead you take part in worked durable to attain in excess of your competitors. Hire folks RPG-coded corporation rules decay in the sphere of the dark strictly impacts your dexterity, and limits your opportunity options regarding the predetermine, which may perhaps include:
Update the appliance so with the aim of it runs further efficiently and affordably on the IBM i head waiter
Migrate the appliance to run on one more platform, or else
Re-write the appliance from abrasion
A connect of years before, Databorough introduced a artifact called X-Audit with the aim of can unthinkingly dig out passй folks RPG corporation rules and bring clarity to what did you say? The predetermine does and how it does it. Whether or else not a customer chooses ultimately to stay on the IBM i platform, the experience gained can take part in a kindly effect leading decision makers. Call it a "V Spec" or else Valium used for RPG.
"What is fascinating is, formerly folks know with the aim of there's a get-out strategy or else there's a strategy to evolve the appliance in the sphere of a structured way and they've got visibility, in that case folks lose the publicity a miniature smidgen," Milligan says. "Once you position it in the sphere of front of them how stubborn it is, how dense the task is, and how much code they got or else they haven't, in that case the in one piece idea absolutely sort of slows down. Round about still say, 'Yeah let's work out it,' and inedible they spread. But others conclusion up running their property further intelligently in the sphere of RPG on the AS/400."
If IBM i shops and ISVs are departure to evolve their RPG applications to take care of relevancy in excess of the subsequently 40 years, they would work out well to watch over folks all-important corporation rules, and a well brought-up way to start is by ensuring the credentials is up to slay. There's rebuff argue to panic by the side of this stage, but a unimportant investment at present choice put together life easier down the road.

Acer laptop accu          Acer AS09A71 Accu                Acer AL10A31

2011年12月11日星期日

IBM Off To The Races With New Memory Tech

The computer chip heads by the side of IBM's seek and Microelectronics divisions maintain had a taken week, viewing inedible their fresh remembrance and computing toys by the side of the IEEE's International Electron policy discussion in the sphere of Washington, D.C., carry on week. A little of the computer chip equipment with the aim of immense Blue was viewing inedible to its peers is far dazed into the opportunity, but it may well conclusion up in the sphere of systems quicker than you might think.
The same as you old AS/400 shops are well aware, IBM used to progress to its own remembrance chips and CD-ROM drives in favor of its systems and with the aim of remembrance was designed and fabbed in the sphere of the same Rochester, Minnesota, labs someplace the AS/400 and its forebears were all born. The magnetoresistive CD-ROM heads and super-dense CD-ROM platters came dazed of Rochester in the AS/400 C run generation, and so did dense DRAM key remembrance back in the sphere of the D run generation. (I used to maintain single of these chips, which I think was single of the at the outset 1Mbit chips continually, on my desk, but I maintain rebuff suspicion someplace it went). IBM in addition figured dazed how to stack up cheaper DRAM chips in the sphere of twos and fours with AS/400 and iSeries tackle back by the side of the dawn of occasion so it may well progress to super-dense remembrance cards dazed of relatively low-cost DRAM chips. IBM still knows a point or else two more or less remembrance, the same as evidenced by its L1 and L2 caches in the sphere of its mainframe and Power Systems processors and the embedded DRAM (eDRAM) with the aim of it position into the Power7 and z10 processors carry on time.
Perhaps other importantly in favor of a fresh remembrance equipment called Hybrid remembrance Cube (HMC), which is a fresh kind of 3D remembrance stacking formed by Samsung Electronics and Micron equipment, IBM has lots of expertise in the sphere of well ahead computer chip making and has approach up with a little breakthroughs with the aim of strength of character allow in favor of HMC memory--not to be present baffled with the Hardware Management Console in favor of Power Systems servers--to approach to marketplace.
Here's the suspicion behind 3D remembrance. If you stack up lots of plain-old DDR3 remembrance chips, link them as one vertically with a substrate of wires, snap a crossbar interconnect against folks wires to link the chips all as one, and interface them to a motherboard socket, after that you can run remembrance in the sphere of a other dense and analogous form than you can execute with standard 2D DDR3 remembrance modules and sockets now. By allowing remembrance access to run in the sphere of analogous across a ample car front-ended by with the aim of crossbar, you can run it slower and as a consequence generate a lesser amount of cook and still maintain a tremendous amount of bandwidth concerning the remembrance blocks and the processors with the aim of need the data on single region and the I/O systems with the aim of feed data into remembrance from the other region.
Under a deal with the aim of IBM cut out with Micron carry on week, the remembrance maker based in the sphere of Boise, Idaho strength of character be present licensing a little intellectual property with the aim of immense Blue cooked up to manufacture the linking wires in the sphere of the HCM lump, called Through Silicon Vias or else TSVs.IBM and Micron are not adage exactly what did you say? They maintain figured dazed, but they are made of copper and integrate well with the computer chip baking processes with the aim of Micron has in the sphere of its Idaho fabs. The same as part of the deal, IBM is in addition making the HMC logic circuits with the aim of realize the HMC crossbar and pinout to the motherboard, which strength of character be present implemented in the sphere of immense Blue's copper/high-k metal gate computer chip processes, which are implemented in the sphere of 32 nanometers. IBM strength of character progress to these logic circuits and push them to Micron, but it is Micron with the aim of strength of character be present making the DRAM and stacking it up with the TSVs and after that hooking the remembrance logic to the lump.
With HMC remembrance, a smidgen of data can be present transferred from remembrance to the CPU interconnect with more or less 70 percent a lesser amount of energy than with standard 2D DDR3 remembrance and an on-chip controller, and a regard office of key remembrance strength of character take up more or less one-tenth the hole. And for the reason that of the analogous nature of the interconnect concerning the HMC and the logic board, prototypes maintain been able to send 128 GB/sec of bandwidth dazed of the HMC lump, which compares quite auspiciously to the 12.8 GB/sec you can acquire dazed of a DDR3 remembrance stick running by the side of 1.33 GHz using a 2D configuration.
Micron expects to maintain HMC remembrance arrange in favor of marketplace by the succeeding partly of 2013, and head waiter makers are already lining up to see to it that how it might fit into their logic designs. Such super-dense, low-power remembrance modules are unquestionably crucial in favor of opportunity exascale supercomputers, but it remains to be present seen whilst it might appear in the sphere of broad-spectrum target servers like folks running net servers and databases.
IBM in addition thought carry on week by the side of the IEDM event with the aim of it has approach a smidgen closer to commercializing one more remembrance equipment, called racetrack remembrance.
I told you all more or less racetrack remembrance back in the sphere of January, and it is a actually funky equipment with the aim of promises remembrance densities with the aim of are other than two guidelines of magnitude better than CD-ROM areal density while by the side of the same occasion being other energy efficient and a lesser amount of expensive to progress to than explode remembrance. Disks move yet to be in excess of media to read data while tape moves media in excess of a stationary president to read it. Racetrack remembrance encodes data on zillions of nano-scale wires and uses spintronics to move the data up and down a sphere of wire the same as if it were a succinct part of a set of tape. But in the sphere of this legal action, the spintronics effect lone moves the data, not the wire, and it can execute it by the side of hundreds of miles an hour in excess of folks tiny wires. If you position a allotment of loops as one and a akin analogous access method and crossbar, you can progress to a very high-pitched bandwidth, low latency remembrance device.
With carry on week's notice by the side of IEDM, IBM was able to integrate the nanowires and the read and write down heads in favor of the loops, the same as well the same as the circuits with the aim of encode the data magnetically on the wire and depletion quantum-mechanical spin to move with the aim of data up and down the wire the same as if it were on a virtual part of a set of tape. Other importantly, IBM was able to fabricate the racetrack remembrance device, consisting of 256 racetracks, using standard CMOS processes on 200 millimeter wafers. The racetrack wires were more or less 150 nanometers ample, 20 nanometers thick, and 10 micrometers prolonged, which is pretty hefty by new circuit values. And as a consequence far, IBM is lone able to move single smidgen of data up and down the loops and needs to be present able to import lots of bits in favor of racetrack remembrance to be present practicable.
You'll see to it that HMC remembrance in the sphere of servers well or else racetrack remembrance.
Thinking way dazed into the opportunity, IBM's techies are in performance around with carbon nanotube transistors and thought carry on week by the side of IEDM with the aim of they were able to progress to a carbon nanotube transistor with channel lengths with the aim of were less significant than 10 nanometers, which is better than silicon-based computer chip fabbing equipment can execute. Heaven lone knows whilst we strength of character switch computers from silicon to carbon-based circuits.