Archive for the ‘tips’ Category

Four SAS 6 Gb/s RAID Controllers, Benchmarked And Reviewed

sas6gbraid

We have our hands on four SAS 6 Gb / s RAID controllers from Adaptec, Areca, HighPoint and LSI, and they went with RAID 0, 5, 6 and 10 workloads to test their courage. If your system connectivity, eight more ports? We answer that!

Check out motherboards today (or even some of the older platforms out there). Is it really still buy a dedicated RAID controller? Three-gigabit SATA ports are found on almost every card, and audio and network connectivity. The latest chipsets like Intel’s and AMD’s A75 Z68 even integrate support SATA 6 Gb / s. Based on a reliable power electronics, a powerful processor and many I / O, you’re not all characteristics of a solid add-in card? Where it makes sense to invest in a discrete control it?

In most cases, mainstream users to create RAID 0, 1, 5 and 10 arrays configured with its built-in motherboard SATA ports and a little bit of software allows reasonable performance. But in an environment where there are more advanced RAID levels, such as 6, 50 or 60 required, beefier drive control is desired, or scalability is required, the chipset-based controls are inadequate. That’s when it’s time for a professional-class solution.

And at this point, you’re no longer limited to SATA storage. To facilitate a large number of add-in cards that enable support for Serial Attached SCSI (SAS) or Fibre Channel (FC) disk drives, each interface offers unique advantages.

SAS and FC RAID for professional

Each of the three available interfaces (SATA, SAS and FC) brings different strengths and weaknesses of the table, none of them can be called in any case as the best. The strengths of the SATA drives on some of the largest capacity and low cost, while the management of large data rates. SAS drives are typically emphasize the reliability, scalability and high I / O rates. FC storage is focused on continuous, high data rates. As a legacy solution, some companies are still using Ultra SCSI, although with a maximum unit count of 16 (including a controller and up to 15 discs) disabled. In addition, the maximum total bandwidth of 320 MB / s (in the case of the Ultra-320 SCSI) rather poorly in comparison to its successors.

Ultra SCSI uses the standard for professional, enterprise storage solutions. SAS is largely over who have not only a much larger bandwidth, but also the flexibility of mixed SAS / SATA environments for cost, performance, reliability and the ability to really optimize within a JBOD. Moreover, many dual-ported SAS drives for the purpose of redundancy. If a controller card expires, you close the drive to a second controller failover. This allows SAS support for high availability setups.

In addition, SAS is not only a point-to-point protocol between a controller and a memory device. It supports up to 255 memory devices via SAS expanders on cable. By using a two-tier structure, SAS expander, theoretically, 255 x 255 (or slightly more than 65,000) storage devices can be connected to a SAS channel, provided that the controller chip has such a large amount of support.

Adaptec, Areca, HighPoint and LSI: Four tested SAS RAID Controller

In this comparison, we examine the performance of the current SAS RAID Controller, represented by four products: Adaptec RAID 6805, Areca ARC-1880i, HighPoint RocketRAID 2720SGL attack, and the LSI MegaRAID 9265-8i.

SAS and FC-why not? On the one hand, SAS is more relevant and interesting architecture. It offers features such as zoning, which can be very attractive for professional use. On the other side of the market data shows that the FC role in professional storage market is declining, and some analysts even predict their demise based on the number of distribution disks. While the future looks bleak for the FC, IDC predicts SAS drives 72 percent share of the enterprise HDD market in 2014 to enforce.

Protect Your Computer From Hidden Dangers

systemcomputer

He blew right by the dog on the wall of the garage. Each device in the house was fried. Hearing my neighbor is grieving the loss of all its equipment through a beam made me do some research on the hidden dangers of power surges. I was surprised to find that even without the lightning, the electricity power supply to my house was sending surges through my computers up to 20 times a day. Time to call an electrician.

I learned that energy fluctuations in the mains are normal. Occur up to 20 times a day in the average home. The most I usually notice a flashing light. Our devices, however, are affected by all changes in electricity supply.

Although designed to keep working through fluctuations within certain limits, my electrician told me that the net result of the foot to the constant changes in the power supply is costly wear and tear on all my appliances. Their life expectancy can be reduced by up to 30 percent. It does not matter much in a toaster for $ 50, but what about my teams, or the home theater system that cost me thousands of dollars?

Worse, during a lightning storm climates multi-beam grid, some of which may be close to home. Lightning is common from spring right through fall, so it is statistically more likely than not to get a hit near you at some point during the year. A strike only a mile away can send an additional 30. 000 amps of electricity through his house, which is enough to cause serious damage to sensitive equipment.

A lightning strike at home can fry every electronic device in it. Imagine having to replace their computers, televisions, and all other appliances in your home at a time. Worse, your insurance policy probably does not cover these events, which means you’ll be paying out of pocket.

A power surge protector installed by a professional electrician can extend the life of your machine, oven, and all the other expensive items at home. You can save thousands of dollars if you are unlucky enough to experience an electric shock. You can earn in two ways. Immediately start to save money by extending the life of your expensive equipment, and you’ll have peace of mind about the possibility of lightning to burn all your electronics.

This type of protection is simply not provided by the circuit breakers, which are designed to prevent fires caused by short circuits, but do not protect equipment against power surges. I found that having the whole house surge protection installed by a qualified electrician was surprisingly affordable. Now I have to protect my computers, home theater, refrigerator, washing machine, and countless other devices. My poor neighbor is paying to replace her.

Database A Boon For It

database

The advent of the database is perhaps the most valuable thing that has come out of the computer age. The power of information brought to us in every increasing speeds and volumes has increased our ability to make money like never before. Information for the businessman is everything and so the database provides him more power to work with his everything.

Database technology is simply the storage of material and information in such a way as to increase the speed of retrieval on demand and to compare and make useful inferences on a large volume of data. Computers as long as they are equipped with enough memory are capable of housing more information than we can give them and in the space of virtually no space. Gone are the days of libraries that cover acres of land and go up multiple stories to hold all of the volumes of information that they do. Soon libraries will be virtual, contained on a server some where and completely accessible via a personal computer.

In statistics the more data you have the better your information is—that is the less affected by chance in a negative way. The better your information is the easier it is to make decisions about the next step with complete confidence that you will get the desired outcome. The database has allowed huge amounts of information to be compiled, sorted, and analyzed and has given businessmen information that makes them money and lots of it.

Consider a database for the items bought in a store in a year. You can know the date and the time of purchase. You can know the quantity of purchase. If the person pays with a credit card you can know the demographic of the population that that product is popular with, you can know what other items went along with a certain product. You can see the differences in sales strategies and marketing ploys. You can tell the affect of price on a product and location in the store. The list really is endless, and marketing really becomes a science more than a game because consumers are predictable—humans are creatures with similar desires and responses to situations.

The thing that the database can improve now is the speed in which it handles the information. Changing the partitioning of the memory, or the language in which it is stored can have a significant difference in the time of a query. The difference may be in milliseconds or smaller but when you think about how many queries might be useful (millions!) that becomes a significant amount of time and time is money.

Get cheaper web hosting price by using special coupon codes !

kemana

Have you ever asked to a webmaster what is the most important thing when building a website ? Yes, most of them will answer that web hosting is the most important part. Great web hosting will make your site better. Your site will be fast to be accessed and this mean that more customers for you. Unfortunately, nowadays there are many web hosting providers in the internet. They give you many hosting offers with great package and many features. They also offer cheap price for it. However, did you know that there is a way that you can do so you can get cheaper price than regular ? Yes, simply getting special coupon code for it. If you insert a coupon code when sign up, you can get cheaper price by it’s special discount.

Fortunately, there is a website that gives you all special coupon codes for Top 10 Web Hosting Providers for free. You can visit HostingCouponz.com to get it easily. For example, if you ever visited GoDaddy.com then you know that besides selling domain names, Godaddy also offering a web hosting for their customers. By inserting a coupon code that given by HostingCouponz.com, you can get special 20 % discount for the total price when you sign up.

Besides giving you many coupon codes for Godaddy web hosting service, you can also get special godaddy coupons for the domain name. All you have to do is just insert the coupon when buying a domain name. Incredibly, you can save 30 % of from your total order ! Getting cheaper price in domain registration will give you extra money so you can also buy a web hosting service for your domain. Yes, cheap domain and cheap web hosting. So, why don’t you come to visit HostingCouponz.com now and grab those great coupons ? Enjoy !

How to install the computer network efficiently

comp

Being wait-listed is tough, and you need the right set of keys to open the door to your dream program. The truth is that even with these keys, it’s still not guaranteed that the lock will work. But this keychain has the critical pieces of metal you’ll need to turn that lock.
First, a word of introduction: Realize that receiving a wait-list letter means you qualify for admission. You pass. You are probably on the wait-list (and not admitted) because they have already admitted applicants with your profile and want diversity in the class. Or they find your qualifications impressive, but find someone else’s even more so.
Now let’s examine that keychain. has become an essential prerequisite for any efficient modern-day business as it allows employees to truly work as a team by sharing information, accessing the same database and staying in touch constantly. For a computer network to give the best results, a lot of detailed planning and foresight is required before installation.

Firstly, an organisation needs to clearly define its requirements – how many people would use the network, how many would use it locally (within the office) and how many might require remote access (from a different location), how many computers and other devices (servers, printers, scanners) would be connected to the network, what are the needs of the various departments and who would be in charge of running/managing the network. It also helps if one can anticipate the direction the company would take in the near future so potential growth can be factored in during computer network installation.

The technology issues should also be ironed out in advance – hardware, software, servers, switches, back-up devices, cables and network operating systems. Make sure you have the required licenses to run the software on all your machines before installing a computer network. Alongside computer network installation should proceed ,the building of a dedicated technical support staff, either within your own organisation or outside consultants. Delegate responsibility clearly for network management. Before installing the network, you also need to choose the security mechanism to protect corporate data and keep viruses at bay.

The transition to a new or upgraded computer network can bring some teething problems. To minimise chances of confusion, the company might need to train its staff to make them familiar with the new system. Careful planning will to a large extent prevent crises like system downtime and network crashes.

Get Rid Of Spyware From Your Computer

compspyware

The Internet has revolutionized the whole ambit of communications and has proved to be a boon to mankind. However, its privacy and security is being threatened with Spyware, which can intrude into the computer and cause great damage to the whole system. Most malicious Spywares can access the valuable personal data that might be stored in your computer and cause financial and personal losses. If you don’t protect your computer from spyware, it will be just like keeping your doors open to unwanted elements.
 
Your computer can get affected with Spyware or Adware very easily but this happens mostly through “pop up” ads, downloadable games, music and screensavers. Spyware is a term which covers a vast variety of illicit software that has the capability to intrude, intercept and take control of the operations of the computer that it invades without the approval of the owner or user of the computer.

Spyware can help someone do the following illegal functions:
1)    Read your e-mails
2)    Access your e-mail list
3)    Watch which keystrokes you are typing
4)    Access your credit card information that might be stored in your computer
5)    Get to know your passwords listed in your computer
6)    Steal your social security number
7)    Track all the websites that you visit

It is, therefore, essential for you to know whether your computer is infected with spyware or not and the following are the positive signs regarding the existence of spyware:
1)    If your computer starts running slower
2)    If some programs do not run correctly
3)    If you notice some programs that you were previously not aware of. These could have been installed by the spyware.

Perfect Solution for detecting and removing Spyware from your computer 

The perfect antidote to the menace of spyware is to download a spyware detection tool, which will run a spyware detector and scan your computer for signs of existence of spyware. Most anti-spyware companies offer free trials for scanning and finding out whether the spyware is present or not.  If the result is positive, you would have to use the full software to get rid of the spyware and safeguard your computer.

After using a reputable anti-spyware tool, if you still having problems then what’s the solution?

It is quite possible that even a good anti-spyware tool might not be able to obliterate unwanted malicious software from your computer. The reason could be that a single scan might not be enough and that you might need to operate a number of scans and you might even need to use a second program to completely erase all spyware and adware. It has been noticed that there is no anti-spyware that can attack all the threats posed by the spywares. Some anti-spyware programs can tackle certain threats and these are listed in the software. As such, it might be necessary to employ two or more anti-spyware tools to get rid of all unwanted software that might have heavily infested your computer.
 
Since most anti-spyware tools specify which spyware variants they can detect and remove, it is advisable to use such a devise at the vendor’s premises in order to see its effectiveness and the areas that it can work on. You will thus get familiar with the various anti-spyware tools and with their names and functions. However, it is important to remember that when you apply these tools to remove the spyware from your computer, you should disconnect the same from the Internet connection.

Just as a virus can invade your body and cause various diseases and even death, spyware can also invade your computer and cause irreparable damage. Use the anti-spyware tools as soon as you notice any spyware signs.


Perfect Choice Microphone Tips And Recommendations

The budgetary question is probably the easiest to answer because you know whether you can spend 1,500 dollars for one microphone or can afford only 250 dollars. The application question is a little trickier. Let’s look at two scenarios the solo singersongwriter and the fourpiece ensemble. A personal studio can get by with as few as one or two microphones. If you’re a songwriter who plays acoustic guitar but are planning to record the voice and guitar separately, you can probably get by with one microphone. A good choice in this case would be a condenser microphone with a midsize diaphragm, because it will capture the warmth of the voice, as well as the extended frequency range of the acoustic guitar.

A directional mic, such as one with a cardioid or hyper cardioid pattern, would be best if you want to capture more direct sound than room tone. Fortunately, advances in microphone technology as well as a highly competitive market and overseas manufacturing have brought down the price of mics with large and midsize diaphragms, so that prices start below 200 dollars. Higher priced mics usually give you quieter electronics, better frequency response, and an overall smoother sound. The frequency response of a microphone is depicted in a graph of frequency vs. relative output level. As a sound source approaches a directional mic, the proximity effect boosts the low end. Notice the presence peak between 2 and 10 kHz.

But don’t let price be the only factor in choosing a mic. Try out as many mics in your price range as possible, and even some that are out of your price range so that you can gain some perspective. There might be times when a 500 dollars microphone will sound better to you than a microphone costing more than twice that amount. If you need two mics, you might consider getting one condenser and one dynamic, both with directional pickup patterns. Or, if you plan to record in a quiet, good sounding room, an omnidirectional condenser would be a good choice for one of the mics. This would allow you to take advantage of the room’s acoustics as you record.

Accessories to Maintain Your Car’s Performances

200x200_bak-flip-g2

Having the cars made you to maintain them very carefully. There are many ways to keep your cars in the good shape. You can clean them down every day and bring them to the service center. This thing is very important. You can start from doing the little things for your cars for example adding more accessories to secure your cars.

These little things may mean a lot later. If you wait until your cars are broken, you will regret. Moreover, the cost you have to pay to fix it can be multiplied than the cost you pay if you choose to maintain. In the internet shopping, you can buy some accessories of your cars that will help you to maintain the performances of your cars. For example, the bug deflector, this accessories will help you to avoid the mess that may be caused by the bugs, it suits the truck, SUV type of cars. In the other hand, you can also buy the car floor mats. There are many types and colors of car floor mats that you can pick.

You can also purchase the other accessories that you need for your cars. The other recommended accessory is the bakflip. Maintaining your cars can help you to get your car’s best performances.

Replica TAG Watches

The rugged looks and visual appeal of  TAG Heuer watches attract real men. This world class product is promoted on the macho plank of force and beauty. For its brand promoters, it has endorsed top sportspersons, like Tiger Woods, Maria Sharapova and others.
Why does a TAG Heuer watch become the first choice of men? The question is simple to answer, if you know that this brand is one of the most reliable products in the whole world. Precise to a microsecond, it has all the features a top class watch has and more. TAG Heuer watchmakers certainly didn’t waste time since the year 1900, when they came into being.
Today, TAG Heuer company covers all the prestigious international competitive sports as official time service providers. Much thought and creativity goes into making each and every piece, which makes the product expensive. Go for the original, if you are a genuine sports buff.
But, if you just want to be seen wearing a TAG Heuer and willing to settle for a regular watch with genuine appearance, then you will not be disappointed by our replica TAG Heuer watches. Our expert watchmakers create high quality imitations with cutting edge technology that gives the look and feel of the original. Each replica is matched feature for feature.
This is because we use high quality materials and mechanisms that give the watch a long life, as long as any ordinary regular watch. Our TAG replica watches also use regular parts and components that are easily procurable. In the event of the watch going bad, any watchmaker can repair it with common parts.
We have almost all models available as replicas of TAG Heuer. You can buy more than the whole range within the cost of one original. All you need to do is to click!

Tantric Massage for Your Better Life

Each religion in this world offers valuable thing for our life, including Hindu and Buddha. One example to the valuable thing we can practice in our everyday life is meditation. Meditation is one way to build closer relationship to God, ourselves, and the nature. However, nowadays we find meditation as one way to release ourselves from stress, and it is proven to be very beneficial. If we do the meditation, it does not mean that we turn to be a Buddhist because we are only taking the concept of meditation and not doing elements related to religion. The same thing is also goes for tantra. Tantra is a spiritual practice and can be said as a worship that is practiced by Buddhist and Hindu, moreover those who lived around Himalaya.

Just like meditation, the concept of tantra is also applied in our life. To be specific, the concept is applied in physical and psychological healing treatment. On this modern era, tantra is also associated with the combination of spirituality and sexuality. Tantra deals with energy, the various practices we can find are aimed to increase our positive energy so we can get a better way of life. One type of tantra practice is tantra massage. The Tantricmassage-london co uk is the professional service company that will give us service on this tantra massage. To make their service useful for everyone, they provide various services such as body worship, sensual massage, healing massage, ritual, and many others.

The service is made for both men and women. With the experience they offer, we can achieve maximal pleasure for everything that we do in this life, including in sexuality. We can contact the professional therapist and find various services through the website. If we are women who want to have psychological healing and enhance our sexual experience, we just need to choose Tantra for women. On the other side, men can choose Tantra for men option, but if we want to use the service with our partner, then couple option is the one we choose.

Stats
Categories
February 2012
M T W T F S S
« Dec    
 12345
6789101112
13141516171819
20212223242526
272829  
Alexa Rank
Networks