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Will You Add? - Why Oracle RAC
BasicsMortgage prepayment penalties usually come in two types: hard prepayment and soft prepayment penalties.A hard prepayment penalty is when a prepayment penalty is charged if a borrower refinances or sells a property within the prepayment period.A soft prepayment penalty is when a prepayment penalty is charged if a borrower refinances but not if they sell a property within the prepayment period.Most prepayment penalties are hard prepayment penalties.Your loan documents will state how long your prepayment penalty is in effect.You can call and check wtih your lender what your prepayment penalty is.Payoff StatementA payoff statement is an official document from a lender stating how much money is needed to pay off your current loan as of a specific day. The payoff will include your current loan balance, a prepayment penalty if there is one, and any outstanding interest and paperwork fees.You may need to pay for this payoff statement.Keep in mind that the payoff statement has an expiration date on it because the amount is always changing as you make payments or terms of the loan change.Figuring Out Your Prepayment PenaltyYour prepayment penalty is often several months of interest. Six months
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 t
Holiday-it means a break from our repetitive routine and getting chance to explore the world with joy and joviality. Holidaying is the ultimate one that rejuvenates and revives us from the mundane monotony. But without money, making holiday is merely an illusion. If you have fund, then it is ok. Otherwise, for holidaying you have to look for various options. Though credit card is a good alternative, but its high rate of interest sometimes baffles you. Then what else? You can also opt for Secured holiday loans facility.Like other secured loans, you can avail secured holiday loans against any of your property, like your home, car etc, which will be used as collateral. With secured holiday loans, you can borrow amount from ?20,000-?75,000 and you can extend payments from 10-30 years. Thus, small monthly repayment is possible.Secured holiday loans are facilitated with lots of facilities. In secured holiday loans, the rate of interest is comparatively lower than unsecured holiday loans and credit cards. Apart from that, secured holiday loans cover all travel related expenditures- from tickets to hotel charges, from meals to miscellaneous expenses. Even, easy availability of secured holiday loans is also an added benefit.Secured holiday loans are also ava
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 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
Earning a living as a writer is next to impossible. Even when you’re published, the amounts received for the majority of writers are far below poverty level in the course of a year. When you have a book published, you receive an advance, but that advance has to last until the book earns back the money. That could take about three years for a successful book. Divide your advance by three, and that will give you your annual writing income per year. A $6,000 advance will net you $2,000 a year. Can you live on that? A less successful book might go out of print before the advance is paid back. The answer, of course, is to have more than one book published—a book a year would probably be worthwhile. But having one book published doesn’t necessarily mean your next book will be accepted.The solution to this problem is simple. You must decide why you’re writing in the first place. If you just want to get rich, you might think about entering the entertainment field. Once you’re known throughout the world, publishers will be knocking on your door to publish anything you want to write. Otherwise, you have to make a commitment to write and market your manuscripts every day. If you spend enough time and effort, eventually you will be published, and, ultimately, you will probably
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 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 t
With the refinance craze that has swept the country for the past few years many people have gotten caught up in the hype surrounding these types of loans. But before anyone decides on getting a home equity loan it is a good idea to look at the pros and cons of doing so. Getting a home equity loan is a serious financial decision and as such needs to be thoroughly researched so that you, the borrower, know the ramifications. Probably the first thing that you need to be aware of is that a home equity loan is in essence a second mortgage on your home, and as such carries all the terms and conditions of a first mortgage.On the pro side there is a definite upside to getting a home equity loan. The obvious thing is that you will get a large infusion of cash that you can use for just about anything you want. Once you have signed the papers you will probably receive your check after the closing of the loan is completed. Once the check is in your hand you can use that extra cash for remodeling your house, buying a new car, paying off credit card debts or even invest it and try to make more money. You will also be able to deduct the first one-hundred-thousand dollars of interest on your income tax returns, which can be a large tax savings for you.You will also have to
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 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 t
Most plan services provide construction drawings that are minimally compliant with building codes. You're going to need more information before you sign a contract with a builder, and before you submit your plans for a building permit.Before You Sign A Contract With A BuilderIn addition to the construction drawings you've purchased, you'll need a set of specifications. "Specs" are the details of all the stuff in the house. The plans show where the toilets are placed, for example, but don't specify what kind of toilets they are. The plans show where the cabinets and countertops go, but don't tell you anything about the style, finish, or cost of these items.How important are the specs? They are often the difference between a happy new homeowner and an unhappy one. Good, accurate and complete specs will prevent the frustration and disappointment you'll feel if the completed house isn't exactly what you expected, or if it costs a lot more than you thought. Lack of good specs is the root cause of many contractor "horror stories".Specs will also tell you - up front - how much the finished house is really going to cost. The finishes and fixtures in your house (flooring, lighting, paint, trim, etc.) make up 3
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 t
I am not an SEO expert.I don't know enough and I simply can't know enough.I don't have the time or the energy to keep up with the most up-to-date trends in the SEO industry.The amount of information available on SEO (search engine optimization) is staggering.Between the forums, blogs and podcasts (which sometimes have the juiciest tidbits) it is all too overwhelming. Just following the developments of Google could be a full-time job.I think a really good SEO expert can be worth their weight in gold to a high-volume website that has the ability to monetize search engine traffic. I don't have any of that, so I have had to go it alone - both by necessity and choice.My only claim to SEO fame is that I am the owner and operator of a handful of sites that I've managed to get into the top positions of the leading search engines for some pretty competitive search terms.And I've done it without paying a dime for a link (so far).Here is what I've discovered about SEO.1. Planning MattersRight after that moment when you decide you want a website, you need to get on the internet and do some important keyword research (even before you pick out a domain name).Open up a handful of search engines in multiple brow
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 there are literally dozens of decisions to be made or floundered when configuring a RAC environment. Again, this is not something you want to just inker with. Performance issues will arise.
Oracle RAC is a special case and Vigilant will guide you through the maze, assisting in the selection process of hardware and software. Vigilant will install and configure a RAC solution that is going to perform with the reliability and high availability you require.
From sizing the complete hardware for Server Consolidation, Upgrading to Oracle 10g, or installing and upgrading E-business suites, Vigilant has done it and can quote you a fixed up-front cost.
Surviving on RAC
Putting a RAC system in place is only half of the equation. Oracle RAC is a completely different beast that can not be maintained like the typical single instance Oracle database that most DBAs are familiar with.
Vigilant understands that there is a difference between single database instances and multi-node RAC configurations. RAC performance issue should not be approached in the same manner as a single instance database. Understanding is critical to tuning applications, meeting performance goals, and ultimately keeping your RAC installation up and running.
There are unique and different considerations. Networking protocols but be understood, hardware specifications and configurations are more critical, plus the monitoring of the different instances on each RAC node is different. A complete understanding of how all the pieces fit together is essential for troubleshooting performance and reliability issues.
If you do not have a qualified staff or are in the process of obtaining certification or experience there is no substitute for having someone around that has “been there and done that”. Where RAC is concerned, experience does count.
Vigilant Technologies has been assisting clients by managing their Oracle databases remotely. The clients does not need to pay for a full time DBA and Vigilant Technologies provides all the DBA services for a fraction of a full time DBA costs.
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