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There are five different RAID levels available. Which one is right for you?
- How do you configure data for fast performance and maximum stability?
- RAID is a data storage model that utilizes several physical disk drives simultaneously.
- Learn which RAID configuration is the best for your needs.
The 5 RAID levels<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTI2MjA2Mi9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY2MjgxOTc2MH0.1r4G6igQhbcaGs3MCk5JWd1PmlIN34LU7E8Behhw_U4/img.jpg?width=980" id="0e3aa" class="rm-shortcode" data-rm-shortcode-id="adca3ced1694d29670ca8b043e5b4f48" data-rm-shortcode-name="rebelmouse-image" data-width="2000" data-height="1125" />
Credit: Adobe Stock<p>There are five different RAID levels available. The one you choose will depend on your situation and what you need the RAID configuration to accomplish. You have to decide whether you want your RAID to offer fault tolerance, performance, or both.</p><p>Fault tolerance is what allows your computer system to continue to operate after it has a failed component or storage drive. You won't experience as many interruptions in the performance of your computer if your RAID level setup is fault tolerance friendly. Not only that, but you likely won't experience as much <a href="https://www.r-studio.com/RAID_Recovery_Presentation.shtml" target="_blank">data loss</a> either.</p><p>Therefore, the most reliable RAID levels will need to have a fault tolerance configuration. But you cannot just choose any RAID level because the number of storage drives will influence it too. That is why you need to pay attention to the number of drives available before ultimately deciding on a RAID level to configure.</p><p>Let's discuss the top three RAID level configuration options below. </p>
RAID 0<p>The RAID 0 level writes data onto several disks. In other words, your computer uses multiple disk drives to write and read data to increase its performance. You need at least two disk drives to use RAID 0. If you want to see a better performance from your computer system, then RAID 0 is the right choice.</p><p>However, there is no fault tolerance with RAID 0. That means if one of your disks were to fail, then you would likely lose the data that was on it. Keep that in mind before you choose the RAID 0 configuration.</p>
RAID 1<p>RAID 1 is one of the best levels for fault tolerance. Instead of stripping data and writing it across multiple disks, RAID 1 copies all of the data from one disk and puts it on another disk. It creates a replica of the data that gets stored onto a disk. That way, if your storage disk malfunctions and stops working, you'll have a backup of all the data that was on it.</p><p>So, why doesn't everyone use RAID 1? Well, unfortunately, RAID 1 will slow down the performance of your computer system tremendously. Also, you cannot increase the storage capacity of your computer with multiple disk drives. For example, if you have two 500GB disk drives with a RAID 1 configuration, you will still have a storage capacity of 500GB because each disk drive will contain the same data. </p>
RAID 5<p><a href="https://www.youtube.com/watch?v=1P8ZecG9iOI" target="_blank" rel="noopener noreferrer">RAID 5</a> is like a hybrid level in terms of performance and fault tolerance. You will need at least three disk drives for this particular setup because the configuration is more complicated. If one disk drive fails, then you will still have a backup of the lost data. RAID 5 utilizes parity data on all the storage drives to retrieve lost data. Although writing data onto the drives is much slower, it can be read fast.</p><p>Most people would say that RAID 5 is the most reliable level because data is retrievable without jeopardizing the performance of the system. But again, the setup is somewhat complicated, and it requires you to understand more about hardware controllers and how to increase their cache memory. It is recommended that you use a professional computer technician to set up RAID 5 rather than rely on the automatic configuration of the software.</p>
Northwell Health is using insights from website traffic to forecast COVID-19 hospitalizations two weeks in the future.
- The machine-learning algorithm works by analyzing the online behavior of visitors to the Northwell Health website and comparing that data to future COVID-19 hospitalizations.
- The tool, which uses anonymized data, has so far predicted hospitalizations with an accuracy rate of 80 percent.
- Machine-learning tools are helping health-care professionals worldwide better constrain and treat COVID-19.
The value of forecasting<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTA0Njk2OC9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYyMzM2NDQzOH0.rid9regiDaKczCCKBsu7wrHkNQ64Vz_XcOEZIzAhzgM/img.jpg?width=980" id="2bb93" class="rm-shortcode" data-rm-shortcode-id="31345afbdf2bd408fd3e9f31520c445a" data-rm-shortcode-name="rebelmouse-image" data-width="1546" data-height="1056" />
Northwell emergency departments use the dashboard to monitor in real time.
Credit: Northwell Health<p>One unique benefit of forecasting COVID-19 hospitalizations is that it allows health systems to better prepare, manage and allocate resources. For example, if the tool forecasted a surge in COVID-19 hospitalizations in two weeks, Northwell Health could begin:</p><ul><li>Making space for an influx of patients</li><li>Moving personal protective equipment to where it's most needed</li><li>Strategically allocating staff during the predicted surge</li><li>Increasing the number of tests offered to asymptomatic patients</li></ul><p>The health-care field is increasingly using machine learning. It's already helping doctors develop <a href="https://care.diabetesjournals.org/content/early/2020/06/09/dc19-1870" target="_blank">personalized care plans for diabetes patients</a>, improving cancer screening techniques, and enabling mental health professionals to better predict which patients are at <a href="https://healthitanalytics.com/news/ehr-data-fuels-accurate-predictive-analytics-for-suicide-risk" target="_blank" rel="noopener noreferrer">elevated risk of suicide</a>, to name a few applications.</p><p>Health systems around the world have already begun exploring how <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7315944/" target="_blank" rel="noopener noreferrer">machine learning can help battle the pandemic</a>, including better COVID-19 screening, diagnosis, contact tracing, and drug and vaccine development.</p><p>Cruzen said these kinds of tools represent a shift in how health systems can tackle a wide variety of problems.</p><p>"Health care has always used the past to predict the future, but not in this mathematical way," Cruzen said. "I think [Northwell Health's new predictive tool] really is a great first example of how we should be attacking a lot of things as we go forward."</p>
Making machine-learning tools openly accessible<p>Northwell Health has made its predictive tool <a href="https://github.com/northwell-health/covid-web-data-predictor" target="_blank">available for free</a> to any health system that wishes to utilize it.</p><p>"COVID is everybody's problem, and I think developing tools that can be used to help others is sort of why people go into health care," Dr. Cruzen said. "It was really consistent with our mission."</p><p>Open collaboration is something the world's governments and health systems should be striving for during the pandemic, said Michael Dowling, Northwell Health's president and CEO.</p><p>"Whenever you develop anything and somebody else gets it, they improve it and they continue to make it better," Dowling said. "As a country, we lack data. I believe very, very strongly that we should have been and should be now working with other countries, including China, including the European Union, including England and others to figure out how to develop a health surveillance system so you can anticipate way in advance when these things are going to occur."</p><p>In all, Northwell Health has treated more than 112,000 COVID patients. During the pandemic, Dowling said he's seen an outpouring of goodwill, collaboration, and sacrifice from the community and the tens of thousands of staff who work across Northwell.</p><p>"COVID has changed our perspective on everything—and not just those of us in health care, because it has disrupted everybody's life," Dowling said. "It has demonstrated the value of community, how we help one another."</p>
Miso Robotics has already served up over 12,000 hamburgers.
- Quick service restaurants are facing growing labor, food, and real estate costs.
- Miso Robotics is working with these restaurants to lower labor costs via automation.
- Miso Robotics has already produced over 60,000 pounds of food with its revolutionary technology.
Here are 5 ways to make your workplace better and your workforce happier.
- "Productivity of work isn't the responsibility of a worker yet of a manager," said famed management consultant Peter Drucker.
- Psychology tells us again and again that emotionally intelligent leadership, which recognizes the humanity in others, is a driving force of productivity.
- Here are 5 simple but effective ways to increase performance and make a positive impact in your workplace.
Customized employee appreciation gifts<p>Employee appreciation gifts can be an excellent incentive to drive your employees to work harder. But don't just issue standard mass-produced gifts that are the same for everyone. If you offer <a href="https://www.gs-jj.com/" target="_blank">specially customized employee appreciation gifts</a> instead, then your employees will think of them on a more personal level.</p> <p>For example, if your employees are big baseball fans, you could reward them with baseball trading pins that have their names on them. Perhaps you know of an employee who has been open with you about their desire to quit smoking. You could give them a motivational PVC patch with a message about strength as a way to encourage them toward their goal.</p> <p>Personalized gestures show employees that you care about their individual interests, struggles, wants, and desires. That gives them greater motivation to do better in the workplace.</p>
Encourage employee feedback<p>Your team will have a better attitude about their workplace if they feel like they can make a valuable contribution to its organizational structure and how it's being run. If employees have no say in the rules and procedures of their workplace, they could quickly develop resentment toward their managers.</p> <p>Consider having an employee feedback box in the workplace. It is a box where employees can submit workplace suggestions and criticisms to their employers anonymously. They can fill out a suggestion form and slip it into the box. Then you can review the suggestions and address them accordingly. </p>
Acknowledge accomplishments<p>Managers often get too narrowly focused on telling employees what needs to be done in the workplace. That's why managers need to acknowledge the accomplishments of their employees because it reinforces the great job they are doing.</p> <p>If employees never hear any compliments or acknowledgements regarding their positive contributions to the workplace, they might start not to care as much anymore. It will cause their work performance to decline drastically. So, always give praise to your employees when they complete their tasks successfully or make an outstanding contribution.</p>
Encourage break time<p>Managers who force their employees to keep working long hours without a break are doing a disservice to their company. If employees don't get a break after a certain period, their productivity in the workplace will diminish. You need to encourage your employees to take periodic breaks to rest and recharge themselves mentally and physically. </p>
Offer more work flexibility<p>The digital age is called the "age of convenience" for a reason. Several research studies show that employees are more productive if their employers give them the flexibility to work from home. </p> <p>It is easier for someone to get out of bed and hop right onto their computer to get to work. Employees want this kind of flexibility, especially if they have to watch their children at home and cannot afford a babysitter. If you can offer them this kind of flexibility, then it will ease their stress and let them be more focused on their work.</p>
Businesses have learned how to mend the weak spots in free trial marketing.
- Free trials are an excellent marketing tool but people can take advantage of the system by using disposable emails, jumping from one free trial to the next.
- You can use free trial marketing to great effect if you know how to protect your business against those who want to take advantage.
- Here are 3 ways to identify email addresses that will never lead to a genuine sale and remove them from your lists.
Limit registration to non-disposable email address users<p>Protection against freemium abuse begins upon signup. Limiting registration to only those who don't use disposable email addresses is one way to do that. You can integrate a bulk email verification API into your registration page or use a disposable email domains database like the one provided <a href="https://emailverification.whoisxmlapi.com/disposable-email-domains?mc=bigthink.com" target="_self">by WhoisXML API</a> to automatically check if the email address a subscriber provided is disposable or not. A useful bulk email validation tool would tell your administrator immediately that the address is disposable, and so it's likely you're dealing with someone who might try to abuse a free trial.</p><a href="https://emailverification.whoisxmlapi.com/disposable-email-domains?mc=bigthink.com" ><img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzYzMjkwMy9vcmlnaW4ucG5nIiwiZXhwaXJlc19hdCI6MTY1MTUzMzE1OX0.RvfSCPLh2llBsT1ru98sLnwab0WNh-1JBqH4IhhOrw8/img.png?width=980" id="9a871" class="rm-shortcode" data-rm-shortcode-id="624ead3c30dd034e8a3e58ada443cfc6" data-rm-shortcode-name="rebelmouse-image" alt="Bulk email verification tool" data-width="1071" data-height="961" /></a>
Make sure the email address is contactable<p>Not all freemium abusers use disposable email addresses. Some can just as easily use personal email addresses from Gmail, Yahoo, or other free services. A lot of people keep extra email addresses to direct email marketing or newsletters to. It's one way to keep their primary personal inboxes less crowded.</p><p>Since these secondary email addresses probably get tons of marketing collateral each day, they're likely full, and so messages will sooner or later bounce. That's not good for any company as it translates to a high bounce rate, which can adversely affect its email deliverability and domain reputation.</p><p>A robust <a href="https://emailverification.whoisxmlapi.com/bulk-api?mc=bigthink" target="_blank" rel="noopener noreferrer">bulk email validation API</a> can instantly let you know if all the email addresses in your contact database are accessible. It tells you if every address is Simple Mail Transfer Protocol (SMTP)-enabled and, therefore, able to receive messages. So, if you, for instance, have the email address email@example.com in your database, which has an email verification result that says it isn't SMTP-reachable, it may be best to take it off your distribution list to lower your bounce rate.</p><p>Taking the email address that's probably no longer in use off your subscription list is also advisable. That way, your chances of dealing with a freemium abuser is reduced as well.<br></p><a href="https://emailverification.whoisxmlapi.com/bulk-api?mc=bigthink" ><img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzYzMzAyMy9vcmlnaW4ucG5nIiwiZXhwaXJlc19hdCI6MTYzMzA0MDI2MH0.GGDQJnOedW6yB9cq0qmrfPwTthcnB2xpi4pRnSLMomw/img.png?width=980" id="90d00" class="rm-shortcode" data-rm-shortcode-id="edb0bfce366c8fe0e86fa9874a1acbba" data-rm-shortcode-name="rebelmouse-image" alt="bulk email validation API tool" data-width="1076" data-height="951" /></a>
Keep your distribution list in tip-top shape<p>The more unreachable email addresses in your distribution list, the higher the chances of ending up in someone's blacklist. It is, after all, not uncommon for spammers or cybercriminals to use the shotgun approach in attacks. Sending messages to as many inboxes as possible, after all, increases their chances of success. Using their tactic for a legitimate business, however, is unacceptable either. Organizations are not allowed to send emails to just about anyone without their consent.</p> <p>And so companies that want to stay off blacklists should make it a point to keep their distribution lists updated at all times. But we also know that over time, contact lists can grow to a massive size, making cleanup tedious and time-consuming. The quickest way to keep email databases in tip-top condition is to use a bulk email validation solution. It lets you check up to 50,000 email addresses in one go to make sure that they won't do your domain reputation any harm and cause you to end up on a dreaded blacklist.</p> <p>Bulk Email Verification API/Lookup can confirm if each email address:</p> <ul><li>Has the correct syntax or follows established Internet Engineering Task Force (IETF) standards</li><li>Is not disposable by checking its domain against those of known disposable email providers that include Mailinator, GuerrillaMail, and more than 2,000 others</li><li>Has a corresponding mail server evidenced by properly configured mail exchanger (MX) records</li><li>Points to a valid inbox that lessens your chances of dealing with suspicious users</li><li>Is not associated with a catch-all mailbox that isn't assigned to any particular user and so may not add value to your distribution list</li></ul>
Nutrisystem is a smarter weight-loss program that users enjoy.
- The societal and economic consequences of obesity cannot be ignored.
- The economic impact is up to $190 billion every year in America.
- Americans spend up to $2.5 billion each year on popular weight-loss programs.
Credit: Nutrisystem<h3>The economics of obesity</h3><p>The obesity crisis in America has profoundly changed the health of our nation. Two-thirds of American adults are now overweight or obese. Excess body weight creates numerous health problems, such as increased risk for heart disease, hypertension, cancer, sleep apnea, stroke, and type 2 diabetes. Tragically, the steep rise in obesity rates can, in large part, be traced back to the surge in processed foods made with filler ingredients, questionable preservatives, and excessive sugars. </p><p>That's part of what makes losing weight so difficult. Supermarket shelves are stocked with processed foods. A whopping 74 percent of packaged foods contain added sugars, which are conveniently disguised under 61 different names, including dextrose, maltose, and treacle. You shouldn't have to play detective every time you go to the grocery store. </p><p>Obesity has real-world consequences. Every year, up to $6.38 billion is lost in productivity costs due to obesity-related absenteeism. That number only accounts for people taking off of work. Overall, obesity-related costs in America are estimated to be $147 billion every year. One <a href="https://www.hsph.harvard.edu/obesity-prevention-source/obesity-consequences/economic/" target="_blank">study</a> shows that cost was $190 billion in 2005. </p><p>Overweight citizens are also more likely to suffer from poor mental health. The combination of poor self-image, social stigma, lack of exercise, and biological issues due to obesity increase the likelihood that someone will be anxious or depressed. This creates a crippling feedback loop: diets high in sugars and carbohydrates, which are fueling the rise in obesity, are <a href="https://bigthink.com/21st-century-spirituality/your-diet-might-be-causing-anxiety-and-depression" target="_self">also linked</a> to poor mental health. </p><p>Many people want a solution that works. In 2014, Americans spent roughly $2.5 billion on commercial or proprietary weight loss programs. As a society, we pay the price of obesity in the form of work absenteeism, inflated health care costs, and mental health issues, and we pay trying to solve it. Finding a solution to this problem is of utmost importance. </p>
Worthy returns 2-3x more money than local jewelers and pawn shops.
- The jewelry resale market notoriously undervalues the true worth of many pieces.
- Sellers that investigate their options tend to receive higher returns than those who go to local jewelers. Keeping jewelry that you do not wear can be a bad financial choice; the value of diamonds is down more than 10% over the last 5 years, while the Fortune 500 index is up 40%+ over the same period.
- Local marketplaces like Craigslist or Ebay are fraught with scammers who can leave sellers empty handed.