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Atricle Dump - Why Oracle RAC
How Translation Services Help You with Customer ServiceThere's a German saying that I love to quote: If I'm selling, I'll speak English, but if I'm buying, Sie mussen deutsch sprecken (you have to speak German). I like that sentence because it points out the one thing that American companies seem to get right domestically, but not internationally: customer service comes first.Here in the land of "the customer is always right," we tend to think that the customer always speaks English. And, a lot of the time, we're right. In Denmark, for example, English is taught from elementary school up. English is the most popular foreign language taught to grade schoolers in the EU and has quickly become a powerful language of commerce throughout all of Asia. But just because someone speaks a language doesn't mean that they speak it well or that you should expect them to. Your customers may speak English, but when it comes to strengthening your sales, is English the language of customer service?Papa Johns International, CNN, Wells Fargo, the American Lung Association, Lowe's, even the IRS--across multiple industries, through online and print advertising, American business are starting to tap into the 52 million people in this country who speak a language othe
Vigilant Technologies is proficient in designing, architecting, installing, and testing all Oracle environments including RAC systems.
Why RAC
It is amazing how RAC solves all the issues surrounding small discreet and large dedicated systems. RAC allows for scalabil
The process of refilling inkjet cartridges is simple; though, there are a few important steps to remember before beginning. It is wise to perform the refilling process on a protected surface (covered in newspapers) to avoid damage to furniture through spillage of ink. To avoid mixing colors during the procedure it is important to make sure that all syringes are cleaned, and that the proper color is used with the corresponding inkjet cartridge. If there is a difference in the colors from those mentioned in the supplied instruction manual, please be sure to fill the chambers in each inkjet cartridge with the appropriate color.StepsTo begin the inkjet refilling process, please remove all empty cartridges from your printer. Firmly attach a piece of tape to the bottom of each cartridge making sure that the “ink exit holes” are properly covered. The “filling holes” are located on the upper side of the ink cartridge. They can be found underneath the label.• Use the tool provided in the kit to punch through and expose the recessed inkjet refill holes. Note: some cartridge sets have ball bearings instead. If this is the case, please push the bearing through the hole into the cartridge.• Fill the provided syringe with the appropriate color
Let’s face it, today’s IT environments are in constant flux. Acquisitions, mergers, global economies, and the general unrest in the marketplace continually put stress on IT infrastructures. It has become increasingly difficult for IT organizations to predict, plan, and deploy proper computing environments that will satisfy current and future requirements.
Corporations, when planning for database systems, seem to be a constant battle between purchasing systems that meet today’s requirements against systems that might potentially satisfy future expectations. The unfortunate reality is that both of these approaches are inadequately suited when compared to the dynamic nature of the systems we must supply to the end user community.
When systems are built against today’s requirements, without looking to the future, what’s often left after requirements change, is a set of small discrete systems scattered around the organization each supporting one or two applications. These independent systems typically are improperly sized, too small or too big for the applications they support, and are likely to become islands of computing power that are spread thinly around a corporation. To make matters worse these discrete systems are often unable to facilitate communications across application layers or even simply share data between themselves. Look at any of these systems across an enterprise and you will also see wasted or unused CPU cycles, wasted disk storage subsystems, and over-worked DBAs and Administrators trying desperately to keep some for of control on these systems.
Purchasing large centralized servers or systems larger then what is currently required is no better. Companies going this route often put every application on one server or are purchasing more computing power then they currently need. Designing systems in this manner has proven to be very costly and wasteful of money and resources.
Downtime is always disastrous but having everything run on one system has the potential of bringing down every aspect of your business at the same time. This goes for unplanned downtime as well as planed downtime such as maintenance windows.
When systems are too large with unending processing power, these systems are often taken for granted and sloppy or ill-tested applications are deployed without ever going through some form of performance or scalability tests. Down the road when additional CPU, memory, or disk resources are needed, they are just not there.
Vigilant’s prides itself in taking the time to consider your requirements, transforming them into viable solutions, and selecting the proper set of components for your computing environment.
Both small discreet and large dedicated systems do share one thing in common. They both often have multiple single points of failure that limit their ability to supply the high availability required in today’s 24X7X365 environments. All it takes is one component to fail and then, regardless of how little or much money you have spent, your system has just become useless and potential revenue is lost because of the downed system.
Don’t get me wrong. Small discrete and large dedicated systems have their place. They have served us well for many years. But these environments just do not supply the required infrastructure for scalability, performance, and availability. For those environments needing more, they are turning to Oracle’s Real Application Clusters (RAC).
What is RAC
Before going much further it would be a good idea to give a brief explanation as to what Oracle RAC is. Singly, and most importantly, RAC is nothing more than a single database that is accessed and shared by many Oracle instances running on separate systems. These separate but linked systems in a RAC environment are coined nodes in the cluster. Each node in the cluster accepts requests from applications or users to query or update the single shared database. The shared data model employed by Oracle RAC requires each instance on the nodes to maintain individual components but also communicate through a sophisticated inter-process communication channel that synchronizes access to the shared components, such as memory cache or disk arrays.
Vigilant Technologies is proficient in designing, architecting, installing, and testing all Oracle environments including RAC systems.
Why RAC
It is amazing how RAC solves all the issues surrounding small discreet and large dedicated systems. RAC allows for scalabili
Three little pigs went to the market to stock up for the future.The first little pig liked chips so he went to the DOW market. He was told by everyone you could always rely on their products. They were always good. The manager told him you could put them away and forget about them.The second little pig liked spicy things. He shopped at the NASDAQ market where they had unusual products. He said that his purchases were good to put away even though they had some strange ingredients. He took his home and said he did not need to worry about them even though others had told him to be careful.The third little pig went to both of those markets. He would pinch the tomatoes and squeeze the Charmin. He was a very careful shopper. Many times he would put things in his shopping cart, but later take them out because they were not "just right".Our first little piggy brought home his purchases, put them away and many times forget about them. The store manager had told him they would always be good and he believed him so he did not bother to check on them periodically.When the second pig got home he also put the things he picked out at the market on his shelf and would brag to his friends about the great things he would have in the
Purchasing large centralized servers or systems larger then what is currently required is no better. Companies going this route often put every application on one server or are purchasing more computing power then they currently need. Designing systems in this manner has proven to be very costly and wasteful of money and resources.
Downtime is always disastrous but having everything run on one system has the potential of bringing down every aspect of your business at the same time. This goes for unplanned downtime as well as planed downtime such as maintenance windows.
When systems are too large with unending processing power, these systems are often taken for granted and sloppy or ill-tested applications are deployed without ever going through some form of performance or scalability tests. Down the road when additional CPU, memory, or disk resources are needed, they are just not there.
Vigilant’s prides itself in taking the time to consider your requirements, transforming them into viable solutions, and selecting the proper set of components for your computing environment.
Both small discreet and large dedicated systems do share one thing in common. They both often have multiple single points of failure that limit their ability to supply the high availability required in today’s 24X7X365 environments. All it takes is one component to fail and then, regardless of how little or much money you have spent, your system has just become useless and potential revenue is lost because of the downed system.
Don’t get me wrong. Small discrete and large dedicated systems have their place. They have served us well for many years. But these environments just do not supply the required infrastructure for scalability, performance, and availability. For those environments needing more, they are turning to Oracle’s Real Application Clusters (RAC).
What is RAC
Before going much further it would be a good idea to give a brief explanation as to what Oracle RAC is. Singly, and most importantly, RAC is nothing more than a single database that is accessed and shared by many Oracle instances running on separate systems. These separate but linked systems in a RAC environment are coined nodes in the cluster. Each node in the cluster accepts requests from applications or users to query or update the single shared database. The shared data model employed by Oracle RAC requires each instance on the nodes to maintain individual components but also communicate through a sophisticated inter-process communication channel that synchronizes access to the shared components, such as memory cache or disk arrays.
Vigilant Technologies is proficient in designing, architecting, installing, and testing all Oracle environments including RAC systems.
Why RAC
It is amazing how RAC solves all the issues surrounding small discreet and large dedicated systems. RAC allows for scalabil
Low interest programs are ideal for the first time homebuyers who wish to purchase a home but at the same time do not have the resources to pay high interest rates. These programs were specially introduced keeping them in mind. Low interest programs are different from conventional programs and are very popular. Let us take a look at some of the features of low interest programs.Features Usually a low interest program has a fixed interest rate. This rate is much lower than conventional mortgage loan programs. In the low interest programs, borrowers receive up to 97% financing of the actual value of the property that they wish to purchase. Even the down payment is low in these programs for first time homebuyers. While other programs require up to 5% of the money, these programs just require up to 3% of the actual loan amount. It has long terms as well. You can select the term period and extend it up to 30 years. There are no prepayment penalties in low interest loan programs. You also get payment protection in the event of loss of the job or an accident.QualifiersHowever, there are certain criteria that need to be met in order to qualify for the low interest prog
Downtime is always disastrous but having everything run on one system has the potential of bringing down every aspect of your business at the same time. This goes for unplanned downtime as well as planed downtime such as maintenance windows.
When systems are too large with unending processing power, these systems are often taken for granted and sloppy or ill-tested applications are deployed without ever going through some form of performance or scalability tests. Down the road when additional CPU, memory, or disk resources are needed, they are just not there.
Vigilant’s prides itself in taking the time to consider your requirements, transforming them into viable solutions, and selecting the proper set of components for your computing environment.
Both small discreet and large dedicated systems do share one thing in common. They both often have multiple single points of failure that limit their ability to supply the high availability required in today’s 24X7X365 environments. All it takes is one component to fail and then, regardless of how little or much money you have spent, your system has just become useless and potential revenue is lost because of the downed system.
Don’t get me wrong. Small discrete and large dedicated systems have their place. They have served us well for many years. But these environments just do not supply the required infrastructure for scalability, performance, and availability. For those environments needing more, they are turning to Oracle’s Real Application Clusters (RAC).
What is RAC
Before going much further it would be a good idea to give a brief explanation as to what Oracle RAC is. Singly, and most importantly, RAC is nothing more than a single database that is accessed and shared by many Oracle instances running on separate systems. These separate but linked systems in a RAC environment are coined nodes in the cluster. Each node in the cluster accepts requests from applications or users to query or update the single shared database. The shared data model employed by Oracle RAC requires each instance on the nodes to maintain individual components but also communicate through a sophisticated inter-process communication channel that synchronizes access to the shared components, such as memory cache or disk arrays.
Vigilant Technologies is proficient in designing, architecting, installing, and testing all Oracle environments including RAC systems.
Why RAC
It is amazing how RAC solves all the issues surrounding small discreet and large dedicated systems. RAC allows for scalabil
Loan BasicsLenders look at a borrower and compare your total debt to your total income.Lenders will do the math on this to figure out how whether you qualify for a loan, and what loan amount is appropriate for you.Your IncomeLenders define your income as including your base salary, commissions, bonuses, rental income, interest income, and any other sources of income.Lenders usually like to factor in income that has been stable over time.If you suddenly got a much higher paying job and are now looking for a new loan the lender may give this additional consideration. From the lender’s perspective your new job at a much higher income level does not have a long track record.Lenders may use an average of your past two years of income.Lenders are generally interested mostly in your past two years of income and employment.Your ExpensesYour expenses are your monthly debt payments.This includes credit card payments, car payments, student loans, and any other expenses.The biggest factor in your expenses may be your new proposed mortgage.The lender will figure out how much your new proposed mortgage amount and rate will be.The lender will add up all of these monthly payments and compare
Don’t get me wrong. Small discrete and large dedicated systems have their place. They have served us well for many years. But these environments just do not supply the required infrastructure for scalability, performance, and availability. For those environments needing more, they are turning to Oracle’s Real Application Clusters (RAC).
What is RAC
Before going much further it would be a good idea to give a brief explanation as to what Oracle RAC is. Singly, and most importantly, RAC is nothing more than a single database that is accessed and shared by many Oracle instances running on separate systems. These separate but linked systems in a RAC environment are coined nodes in the cluster. Each node in the cluster accepts requests from applications or users to query or update the single shared database. The shared data model employed by Oracle RAC requires each instance on the nodes to maintain individual components but also communicate through a sophisticated inter-process communication channel that synchronizes access to the shared components, such as memory cache or disk arrays.
Vigilant Technologies is proficient in designing, architecting, installing, and testing all Oracle environments including RAC systems.
Why RAC
It is amazing how RAC solves all the issues surrounding small discreet and large dedicated systems. RAC allows for scalabil
This week is National Customer Service Week. As we celebrate the people who pay our bills, I want to give a few low-cost and no-cost ideas to WOW Customers so that they come back again and again and tell everyone they know. 1. Have a live person answer the phone – with no wait time. 2. Southwest Airlines sends out birthday cards to their most valued customers. Consider sending your best customers birthday cards. 3. Myra Golden Seminars sends all meeting planners a box of Death by Chocolate cookies to thank them for their business. 4. Be Gumby. The Container Store has adopted Gumby as their unofficial mascot. Gumby symbolizes being flexible as you relate to internal and external customers. 5. Send out Valentines Day cards that say, “We love doing business with you.” 6. Respond to emails within 4 hours (WOW!) 7. Randomly call customers up after a purchase is made or after a problem is resolved to ensure satisfaction. 8. Thank customers who voice a complaint. This can be done via handwritten note, typed letter, or even an email: “Thank you for your feedback. We appreciate customers who let us know when things aren’t right.”
Vigilant Technologies is proficient in designing, architecting, installing, and testing all Oracle environments including RAC systems.
Why RAC
It is amazing how RAC solves all the issues surrounding small discreet and large dedicated systems. RAC allows for scalability, high availability, and failover, each of which is critical in today’s demanding database environments.
Scalability
While it is true that nothing is free, Oracle RAC allows you to scale up or down the number of nodes in your RAC environment such that it sufficiently meets your immediate, short term, or future computing requirements. You choose. Purchase what you need now and then, through the use of modular components, upgrade the system as your business grows.
While Oracle touts that you can build your system with low-cost commodity parts, I am not too sure how many would want their mission critical applications running on low-cost hardware. But what Oracle RAC really provides is for you to purchase hardware that keeps in line with your budget, business needs, and processing requirements. You need only buy today what you really need today and then plug-in or remove hardware when needed. Increasing or decreasing your computing power can be done “on-the-fly” without disturbing current requests to the database.
This is especially important when thinking about database consolidation. Often times we don’t really know how much processing power will be required. All we really know is that when we look at our dispersed systems we are wasting resources in the form of CPU, memory, and disk space. RAC allows consolidate databases with the flexibility to add additional nodes if we miss the mark.
High Availability
High Availability can be summed up in two words, “Always On”. In a RAC environment, since multiple nodes share the servicing of requests to a single database. By having additional nodes, you gain a higher probability that access to a database will always available if a node failure were to occur. In a RAC configuration, if a node were to fail, the surviving nodes would perform recovery on behalf of the failed node and then begin to service requests on behalf of that failed node.
Failover
Closely related to high availability is failover. While high availability ensures that access to a database is never hindered through multiple nodes, failover is the power of an application to continue running even when the node that was servicing its’ request might have failed. Oracle RAC seamlessly and transparently provides complete failover for an application. Oracle RAC maintains and hides all system-side failures from the users and provides complete recoverability for an application.
Moving to RAC
Now you may be saying to yourself, “Yes, I know about RAC and we are dedicated to building our Oracle RAC environment”. Well this is all fine and good but do you really understand what you are getting yourself into? Do not foul yourself, RAC is a complex and difficult beast to handle and should only be architected by experienced professionals. Someone who has done it, is not just trying to figure out how it works, and has the experience to pick up the pieces when something goes wrong is invaluable. Do you really want to trust your production data with someone who is just tinkering with the system?
Moving to Oracle RAC is not an overnight task. The full corporate IT structure needs to be involved and they each have specific tasks. From management setting the budget constraints, through database, system, and network administrators that configure these systems, and down to developers, testers, and users that must test, validate, and use the system.
CRS, OCFS, ASM, TAF, FaN, FCF, NIC, and RAID, these are but a few of the acronyms and technologies that must be learned and understood before attempting a RAC installation. More importantly th
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