Raid(redundant array of independent disks).ali torabi
RAID in persian.In this PowerPoint you will be familiar with the concept of Hardware and software RAID, you will also be able to get familiars with it's shortcoming and strong points in a small time
Raid(redundant array of independent disks).ali torabi
RAID in persian.In this PowerPoint you will be familiar with the concept of Hardware and software RAID, you will also be able to get familiars with it's shortcoming and strong points in a small time
RAID protects disk drives, not data. Yet RAID rebuild times have become an unmanageable liability. RAID is an equal opportunity failure risk for any vendor's high-capacity drives deployed at scale.
Data is being generated at rates never before encountered. The explosion of data threatens to consume all of our IT resources: People, budget, power, cooling and data center floor space. Are your systems coping with your data now? Will they continue to deliver as the stress on data centers increases and IT budgets dwindle?
Imagine if you could be ahead of the data explosion by being proactive about your storage instead of reactive. Now you can be, with NetApp's approach to the designs and deployment of storage systems. With it, you can take advantage of NetApp's latest storage enhancements and take control of your storage. This will allow you to focus on gathering more insights from your data and deliver more value to your business.
NetApp's most advanced storage solutions are NetApp Virtualization & scale out. By taking control of your existing storage platform with either solution, you get:
• Immortal Storage system
• Infinite scalability
• Best possible ROI from existing environment
این اسلاید به ورودی و خروجی در هدوپ اختصاص داده شده است.
فصل 5 کتاب Hadoop the difinitive guide
مباحثی نظیر تضمین صحت داده ها، فشرده سازی، استریمینگ، سریال سازی و فرمت فایل های داده ای پوشش داده شده است
RAID protects disk drives, not data. Yet RAID rebuild times have become an unmanageable liability. RAID is an equal opportunity failure risk for any vendor's high-capacity drives deployed at scale.
Data is being generated at rates never before encountered. The explosion of data threatens to consume all of our IT resources: People, budget, power, cooling and data center floor space. Are your systems coping with your data now? Will they continue to deliver as the stress on data centers increases and IT budgets dwindle?
Imagine if you could be ahead of the data explosion by being proactive about your storage instead of reactive. Now you can be, with NetApp's approach to the designs and deployment of storage systems. With it, you can take advantage of NetApp's latest storage enhancements and take control of your storage. This will allow you to focus on gathering more insights from your data and deliver more value to your business.
NetApp's most advanced storage solutions are NetApp Virtualization & scale out. By taking control of your existing storage platform with either solution, you get:
• Immortal Storage system
• Infinite scalability
• Best possible ROI from existing environment
این اسلاید به ورودی و خروجی در هدوپ اختصاص داده شده است.
فصل 5 کتاب Hadoop the difinitive guide
مباحثی نظیر تضمین صحت داده ها، فشرده سازی، استریمینگ، سریال سازی و فرمت فایل های داده ای پوشش داده شده است
امروزه با پیشرفت سریع تکنولوژی ، صنایع مجبور هستند خود را به روز نگاه دارند — که این موضوع می تواند منجر به عدم کمال برخی از تجهیزات وارد شده به بازار می شود. این گرایش برای به روز ماندن اغلب موارد تاثیرات منفی در کیفیت محصول نهایی به وجود می آورد. متاسفانه صنایع تولید هارد دیسک درایو نیز استثناء نیستند. آمار بالای فروش هارد دیسک و کیفیت پائین! هارد دیسک ها به صورت ذاتی با خرابی ها دوست هستند مثل موارد شناخته نشدن هارد دیسک و از این قبیل اشکالات. در بسیاری از موارد هارد درایو ها شروع به ایجاد صداهایی از جمله کلیک کردن ، خش خش و خراشیده شدن می کند — در ۷۰% موارد این صداها به معنای مرگ هد یا پیش تقویت کننده هارد می باشد. در این موارد خرابی هارد دیسک ، جراحی— تعویض هد و یا لحیم کاری مجدد preamplifier مورد نیاز می باشد.
source: http://lajvard.com/تعویض-هد-هارد-دیسک/
Big Data Processing in Cloud Computing EnvironmentsFarzad Nozarian
This is my Seminar presentation, adopted from a paper with the same name (Big Data Processing in Cloud Computing Environments), and it is about various issues of Big Data, from its definitions and applications to processing it in cloud computing environments. It also addresses the Big Data technologies and focuses on MapReduce and Hadoop.