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satisfy your curiosity on www.knowcrazy.com
Saturday, August 11, 2012
Email Providers
Gmail.com
7.5 GB + 25 MB Attachment limit
Yahoo.com
Unlimited + 25 MB Attachment limit
Windows live
5 GB + 25 MB Attachment limit
Mail.com
Unlimited + 50 MB Attachment limit
Cloud Data Storage
1. Advantages of Cloud Data Storage
Storing extremely large volumes of information on a local area network (LAN) is expensive. High capacity electronic data storage devices like file servers, Storage Area Networks (SAN) and Network Attached Storage (NAS) provide high performance, high availability data storage accessible via industry standard interfaces. However, electronic data storage devices have many drawbacks, including that they are costly to purchase, have limited lifetimes, require backup and recovery systems, have a physical presence requiring specific environmental conditions, require personnel to manage and consume considerable amounts of energy for both power and cooling.
Cloud data storage providers, such as AmazonS3, provide cheap, virtually unlimited electronic data storage in remotely hosted facilities. Information stored with these providers is accessible via the internet or Wide Area Network (WAN). Economies of scale enable providers to supply data storage cheaper than the equivalent electronic data storage devices.
Cloud data storage has many advantages. It’s cheap, doesn’t require installation, doesn’t need replacing, has backup and recovery systems, has no physical presence, requires no environmental conditions, requires no personnel and doesn’t require energy for power or cooling. Cloud data storage however has several major drawbacks, including performance, availability, incompatible interfaces and lack of standards.
2. Disadvantages of Cloud Data Storage
Performance of cloud data storage is limited by bandwidth. Internet and WAN speeds are typically 10 to 100 times slower than LAN speeds. For example, accessing a typical file on a LAN takes 1 second, accessing the same file in cloud data storage may take 10 to 100 seconds. While consumers are used to slow internet downloads, they aren’t accustomed to waiting long periods of time for a document or spreadsheet to load.
Availability of cloud data storage is a serious issue. Cloud data storage relies on network connectivity between the LAN and the cloud data storage provider. Network connectivity can be affected by any number of issues including global networks disruptions, solar flares, severed underground cables and satellite damage. Cloud data storage has many more points of failure and is not resilient to network outages. Network outages mean the cloud data storage is completely unavailable.
Cloud data storage providers use proprietary networking protocols often not compatible with normal file serving on the LAN. Accessing cloud data storage often involves ad hoc programs to be created to bridge the difference in protocols.
The cloud data storage industry doesn’t have a common set of standard protocols. This means that different interfaces need to be created to access different cloud data storage providers. Swapping or choosing between providers is complicated as their protocols are incompatible.
The cloud drive data storage is small enough to be used on laptops while having enterprise class features that enable it to be scaled out to the largest organization.
3. Cloud Drive Architecture
Cloud Drive is a gateway to cloud storage. Cloud Drive supports many cloud data storage providers including Microsoft Azure, Amazon S3, Amazon EC2, Rackspace, EMC Atmos, Nirvanix, GoGrid, vcloud, Zetta, Scality, Dunkel, Mezeo, Box.net, Webdav and FTP. Cloud Drive hides the complexity of the underlying protocols allowing you to deploy cloud storage as simply as deploying storage via an IP SAN.
Cloud Drive is like an IP SAN that never runs out of space. As usage increases, Cloud Drive starts “offloading” data to the cloud data provider. Cloud Drive caches and optimizes traffic to/from cloud storage dramatically increasing performance and availability while also reducing network traffic.
Computers on the LAN access data via the block based iSCSI protocol. The storage service communicates via an internet connection with the cloud data storage provider. When the iSCSI initiator saves data to the data storage server, it initially stores the data in the local cache. Each data unit is uniquely located within the local cache and is flagged as either “online” in the local cache or “offline” in the cloud data storage provider. All data units in the local cache are checked periodically for usage. Least recently used (or “dormant”) data units are uploaded to the cloud data storage provider, flagged as “offline” and deleted from the local cache.
4. Cloud Drive Storage Service
The cloud drive storage service is simple to install and configure. It can be installed on a range of hardware, from laptop for personal use, a server in the office, or a cluster of high end 64 bit servers for the enterprise. Once the service in installed and configured, many clients can connect to it using the iSCSI protocol.
The storage service reduces the data storage requirements while maintaining performance by moving the least recently used data to the cloud data storage provider as well as one or more of the data storage accelerators. Cloud Drive accelerates performance by assuming that actual writes to data can happen anytime before a subsequent read to the same data. Cloud Drive accelerates performance by scheduling this “delayed” write data to periods of low activity and by not downloading data from the cloud data storage provider when the “delayed” write data has wholly overwritten data stored in the cloud. Cloud Drive further accelerates performance by assuming that delete operations can happen anytime after the data is downloaded.
5. Cloud Drive Optimizer
An optional component, cloud drive optimizer, improves performance, reduces bandwidth and reduces your data storage requirements. The optimizer should be installed on all iSCSI clients using the cloud drive storage service.
The data storage optimizer has access to the virtual hard drive to optimize the data stored in the local cache. The optimizer periodically reads virtual hard drive or virtual file share metadata including directories, filenames, permissions and attributes in order to maintain that data in the local cache. In this way, the data storage optimizer also accelerates performance of the data storage server by preventing data other than file data from being identified as “dormant”. The data storage optimizer also reduces storage requirements of the data storage server by periodically overwriting “all zeros” to unused parts of the virtual hard drive. The data storage optimizer is also adapted to periodically run disk checking utilities against the virtual hard drive to prevent important internal file systems data structures from being marked as dormant.
6. Cloud Drive Network Accelerator
An optional component, cloud drive network accelerator, improves the performance and availability of the Storage Service. This component can be installed on all computers in the home, office or enterprise.
The network accelerators allow the office to reclaim all those “small spaces” of data storage already available on the 10’s, 100’s or 1000’s of computers within the enterprise. A typical office with 100 computers having on average 100 GB of space available could potentially reclaim 100 x 100 GB = 10 TB of data storage space by reclaiming and consolidating this unused space. Network accelerators boost performance and improve resilience to slowness or unavailability of the cloud data storage providers by redundantly storing data uploaded to the cloud data storage provider on the local network in the already existing “unused spaces”
Network accelerators work like a massive cache within the enterprise. In the above example, the Storage Services local cache is complimented by a 10 TB onsite cache running throughout the enterprise.
7. Cloud Drive Solution
Cloud Drive increases the apparent availability of the cloud data storage provider. If the local cache satisfies 99% of requests for data without requiring the cloud data storage provider, the apparent availability of the cloud data storage provider is increased 100 fold and 99% of data accesses occur at local network speeds rather than the network connection speeds to the cloud data storage provider. Cloud Drive also manages the data formatting and communication with the cloud data storage provider while allowing seamless access to data using standard protocols such as iSCSI and NFS. Further, Cloud Drive allows concurrent processing of read and writes requests to different data as well as synchronized and serialized access to the same data.
Cloud Drive virtualizes data storage by allowing a limited amount of physical data storage to appear many times larger than it actually is. Cloud Drive allows fast, expensive physical data storage to be supplemented by cheaper, slower remote data storage without incurring substantial performance degradation Cloud Drive also reduces the physical data storage requirements to a small fraction of the total storage requirements, while the rest of the data can be “offloaded” into slower, cheaper online cloud data storage providers.
Storing extremely large volumes of information on a local area network (LAN) is expensive. High capacity electronic data storage devices like file servers, Storage Area Networks (SAN) and Network Attached Storage (NAS) provide high performance, high availability data storage accessible via industry standard interfaces. However, electronic data storage devices have many drawbacks, including that they are costly to purchase, have limited lifetimes, require backup and recovery systems, have a physical presence requiring specific environmental conditions, require personnel to manage and consume considerable amounts of energy for both power and cooling.
Cloud data storage providers, such as AmazonS3, provide cheap, virtually unlimited electronic data storage in remotely hosted facilities. Information stored with these providers is accessible via the internet or Wide Area Network (WAN). Economies of scale enable providers to supply data storage cheaper than the equivalent electronic data storage devices.
Cloud data storage has many advantages. It’s cheap, doesn’t require installation, doesn’t need replacing, has backup and recovery systems, has no physical presence, requires no environmental conditions, requires no personnel and doesn’t require energy for power or cooling. Cloud data storage however has several major drawbacks, including performance, availability, incompatible interfaces and lack of standards.
2. Disadvantages of Cloud Data Storage
Performance of cloud data storage is limited by bandwidth. Internet and WAN speeds are typically 10 to 100 times slower than LAN speeds. For example, accessing a typical file on a LAN takes 1 second, accessing the same file in cloud data storage may take 10 to 100 seconds. While consumers are used to slow internet downloads, they aren’t accustomed to waiting long periods of time for a document or spreadsheet to load.
Availability of cloud data storage is a serious issue. Cloud data storage relies on network connectivity between the LAN and the cloud data storage provider. Network connectivity can be affected by any number of issues including global networks disruptions, solar flares, severed underground cables and satellite damage. Cloud data storage has many more points of failure and is not resilient to network outages. Network outages mean the cloud data storage is completely unavailable.
Cloud data storage providers use proprietary networking protocols often not compatible with normal file serving on the LAN. Accessing cloud data storage often involves ad hoc programs to be created to bridge the difference in protocols.
The cloud data storage industry doesn’t have a common set of standard protocols. This means that different interfaces need to be created to access different cloud data storage providers. Swapping or choosing between providers is complicated as their protocols are incompatible.
The cloud drive data storage is small enough to be used on laptops while having enterprise class features that enable it to be scaled out to the largest organization.
3. Cloud Drive Architecture
Cloud Drive is a gateway to cloud storage. Cloud Drive supports many cloud data storage providers including Microsoft Azure, Amazon S3, Amazon EC2, Rackspace, EMC Atmos, Nirvanix, GoGrid, vcloud, Zetta, Scality, Dunkel, Mezeo, Box.net, Webdav and FTP. Cloud Drive hides the complexity of the underlying protocols allowing you to deploy cloud storage as simply as deploying storage via an IP SAN.
Cloud Drive is like an IP SAN that never runs out of space. As usage increases, Cloud Drive starts “offloading” data to the cloud data provider. Cloud Drive caches and optimizes traffic to/from cloud storage dramatically increasing performance and availability while also reducing network traffic.
4. Cloud Drive Storage Service
The cloud drive storage service is simple to install and configure. It can be installed on a range of hardware, from laptop for personal use, a server in the office, or a cluster of high end 64 bit servers for the enterprise. Once the service in installed and configured, many clients can connect to it using the iSCSI protocol.
The storage service reduces the data storage requirements while maintaining performance by moving the least recently used data to the cloud data storage provider as well as one or more of the data storage accelerators. Cloud Drive accelerates performance by assuming that actual writes to data can happen anytime before a subsequent read to the same data. Cloud Drive accelerates performance by scheduling this “delayed” write data to periods of low activity and by not downloading data from the cloud data storage provider when the “delayed” write data has wholly overwritten data stored in the cloud. Cloud Drive further accelerates performance by assuming that delete operations can happen anytime after the data is downloaded.
5. Cloud Drive Optimizer
An optional component, cloud drive optimizer, improves performance, reduces bandwidth and reduces your data storage requirements. The optimizer should be installed on all iSCSI clients using the cloud drive storage service.
The data storage optimizer has access to the virtual hard drive to optimize the data stored in the local cache. The optimizer periodically reads virtual hard drive or virtual file share metadata including directories, filenames, permissions and attributes in order to maintain that data in the local cache. In this way, the data storage optimizer also accelerates performance of the data storage server by preventing data other than file data from being identified as “dormant”. The data storage optimizer also reduces storage requirements of the data storage server by periodically overwriting “all zeros” to unused parts of the virtual hard drive. The data storage optimizer is also adapted to periodically run disk checking utilities against the virtual hard drive to prevent important internal file systems data structures from being marked as dormant.
6. Cloud Drive Network Accelerator
An optional component, cloud drive network accelerator, improves the performance and availability of the Storage Service. This component can be installed on all computers in the home, office or enterprise.
The network accelerators allow the office to reclaim all those “small spaces” of data storage already available on the 10’s, 100’s or 1000’s of computers within the enterprise. A typical office with 100 computers having on average 100 GB of space available could potentially reclaim 100 x 100 GB = 10 TB of data storage space by reclaiming and consolidating this unused space. Network accelerators boost performance and improve resilience to slowness or unavailability of the cloud data storage providers by redundantly storing data uploaded to the cloud data storage provider on the local network in the already existing “unused spaces”
Network accelerators work like a massive cache within the enterprise. In the above example, the Storage Services local cache is complimented by a 10 TB onsite cache running throughout the enterprise.
7. Cloud Drive Solution
Cloud Drive increases the apparent availability of the cloud data storage provider. If the local cache satisfies 99% of requests for data without requiring the cloud data storage provider, the apparent availability of the cloud data storage provider is increased 100 fold and 99% of data accesses occur at local network speeds rather than the network connection speeds to the cloud data storage provider. Cloud Drive also manages the data formatting and communication with the cloud data storage provider while allowing seamless access to data using standard protocols such as iSCSI and NFS. Further, Cloud Drive allows concurrent processing of read and writes requests to different data as well as synchronized and serialized access to the same data.
Cloud Drive virtualizes data storage by allowing a limited amount of physical data storage to appear many times larger than it actually is. Cloud Drive allows fast, expensive physical data storage to be supplemented by cheaper, slower remote data storage without incurring substantial performance degradation Cloud Drive also reduces the physical data storage requirements to a small fraction of the total storage requirements, while the rest of the data can be “offloaded” into slower, cheaper online cloud data storage providers.
Which Cloud Storage Is Best of 2012?
What is Cloud?
You will get all basic information and details about cloud on http://www.knowcrazy.com/2011/01/cloud-computing.htmlWhat is cloud storage?
- Cloud storage is a model of networked online storage where data is stored in virtualized pools of storage which are generally hosted by third parties.
- Hosting companies operate large data centers, and people who require their data to be hosted buy or lease storage capacity from them.
- The data center operators, in the background, virtualize the resources according to the requirements of the customer and expose them as storage pools, which the customers can themselves use to store files or data objects.
- Physically, the resource may span across multiple servers.
- Cloud storage services may be accessed through a web service application programming interface (API), a cloud storage gateway or through a Web-based user interface.
Why do they provide free storage?
1. Some providers earn by putting ads on their cloud storage websites.
2. Some providers earn by selling the information about what data is stored and geographical, regional and personal details of the users.
3. Some providers do provide free storage upto several GBs. They encourage people to use this services. They earn by providing premium services to organizations and motivate users by providing free services.
My top 18 free cloud storage providers:
- Media Fire
- Sky Drive
- Google Drive
- Drop Box
- Box
- Sugar Sync
- Zumo Drive
- Team Drive
- Ubuntu One
- IDrive
- Open Drive
- Syncplicity
- Spider Oak
- 4Shared
- Adrive
- Ant Drive
- File Factory
- Badongo
Comparison chart between various cloud storage providers by PC World:
If YOU cross the border illegally
If YOU cross the North Korean border illegally YOU get 12 years hard labor with torture.
If YOU cross the Venezuelan border illegally YOU will be branded an American spy and your fate will be sealed.
If YOU cross the Cuban border illegally YOU Will Be Thrown into Political Prison to Rot.
If You Enter Britain illegally YOU will be arrested, prosecuted, sent to prison and finally deported
BUT
If YOU Are a Bangladeshi And Illegally Cross The Indian Border You Get……
- A Ration Card
- Passport (1 or more, as per your requirement)
- Hajj Subsidy
- A Drivers License
- Voter Identity Card
- Job Reservation
- Special Privileges
- Credit Cards
- Subsidized Rent OR Loan facility to buy a house
- Free Education
- Free Health Care
- A Lobbyist in New Delhi, with a ready Television Channel & group of expert human right activists
- Unexpected support from various NGOs working towards the cause of making this country a better place
- The right to talk about secularism, which was not heard of back home.
Even India’s Scheduled castes do not get these benefits in India.
Even Bangla Deshi and Pakistani Hindus, Sikhs, Christians and Buddhists do not get these benefits in India.
Hindus, Sikhs, Christians and Buddhists are treated as third class citizens by Nehru Dynasty and Congress UPA in India.
After Pakistan Occupied Kashmir (POK), we now have Bangladesh Occupied Assam (BOA) thanks to Congress Occupied India (COI).
India chahta he Nehru Parivar and Congress UPA Murdabad aur uska nash ho. India wants death and destruction to Nehru Family and Congress UPA.
Spread the message to all Indians by internet, radio, television, word of mouth, newspapers, etc.
Norton Internet Security 2012 [Review and Download]
Features
- Norton Protection System - provides four unique layers of powerful protection to proactively stop online threats before they can infect your computer.
- Insight - checks where files came from and how long they've been around to stop new online threats before they can cause you trouble.
- Download Insight 2.0 - protects you from dangerous applications by telling you if an application may harm the health and stability of your computer before you install it.
- Norton Safe Web - protects you while you surf the Web by warning of and blocking unsafe and fake websites right in your search results.*
- Norton Management - is cloud based so you can download, install, transfer, update or renew Norton products from anywhere right over the Internet.
- Parental controls management - lets you track your kids' online activities through award-winning Norton Online Family so you can help protect them from online dangers.
- Network threat protection - detects threats as they travel over a network and eliminates them before they can reach your computer.
- Browser protection - protects you by checking for and blocking online threats as your browser loads, to stop online threats before they can do damage.
- SONAR 4 Behavioral Protection - monitors your computer for suspicious behavior to quickly and accurately detect and stop new threats.
- Norton Safe Web for Facebook - scans your News Feed for dangerous downloads and links to unsafe websites and warns you and your Facebook friends about them.
- FREE 24x7 support - offers you expert help and answers by phone, live chat or online whenever you need them. **
- Vulnerability protection - stops cybercriminals from using security holes (vulnerabilities) in applications to sneak threats onto your PC.
- Norton Identity Safe - secures, remembers and automatically enters your website user names and passwords to prevent cybercriminals from stealing your information as you type. Now includes an online version so you can share logins among additional PCs protected by Norton Internet Security 2012.
- Antiphishing technology - blocks fraudulent websites cybercriminals use to steal your identity and your money.
- Bandwidth management - limits non-critical Norton updates when you connect to 3G networks to avoid using up your monthly data allotment or causing overage fees.
- Norton Pulse Updates - updates your protection every 5 to 15 minutes—without disrupting you—for up-to-the-minute protection against the latest threats.
- Email and instant message monitoring - scans email and IMs for suspicious links, attachments and other tricks cybercriminals use to steal your personal information.
- Smart two-way firewall - prevents cybercriminals from hacking into your PC and stealing your personal information-without constantly asking you to make the security decisions.
- Professional-strength spam blocking - keeps your mailbox free of unwanted, dangerous, and fraudulent emails.
- Network mapping and monitoring - shows all the devices connected to your home network, so you can spot uninvited guests using your wireless connection and/or eavesdropping on you.
- Norton Bootable Recovery Tool - creates an emergency CD/DVD/USB that gets your PC back up and running even if it's so infected that it won't start up.
- Silent mode - puts alerts and non-critical updates on hold when you're watching movies or playing games in full-screen mode on your PC.
- Norton Control Center - gives you easy access to program settings and Web-based Norton services from your choice of a standard detailed view or a new simplified view.
- Smart scheduler - runs scans and updates only when you're not using your PC.
- Monthly report - tells you what Norton Internet Security has done in the previous month to keep you safe from threats.
- Power saver settings - maximizes your laptop's battery life by putting off non-critical activities until your computer is plugged in.
Editors' note: Portions of this review are based on CNET's review of Norton Internet Security 2011.
Over the past few years, Symantec has completed a course reversal for its Norton consumer Internet security suites. The massive package of security tools works better than it ever has before, with an impressive set of features, some useful new tools including remote management and download stability analysis, and third-party security efficacy benchmarks that are at the top of the heap. Meanwhile, CNET Labs' performance benchmarks indicate that though Norton doesn't leave the smallest footprint on your system, users should see a minimal impact overall.
HOW TO IDENTIFY DIFFERENT CITIZENS OF INDIA
Scenario 1 :
Two guys are fighting & a third guy comes along, sees them and walks on.
That's MUMBAI.
Scenario 2 :
Two guys are fighting. Both of them take time out & call their friends on their mobiles.
Now 50 guys are fighting.
You are in PUNJAB.
Scenario 3 :
Two guys are fighting & a third guy comes along and tries to make peace.
The first two get together and beat him up.
That's DELHI.
Scenario 4 :
Two guys are fighting. A crowd gathers to watch.
A guy comes along and quietly opens a tea stall.
That's AHEMDABAD.
Scenario 5 :
Two guys fighting and a third guy comes along then a forth and they start arguing about who's right.
You are in KOLKATA.
Scenario 6 :
Two guys fighting and third guy comes nearby house and says "don't fight in front of my place, go somewhere else ."
That's KERALA.
Scenario 7 :
Two guys fighting third guy comes along with a carton of beer.
All sit together drink beer and abuse each other and go home as friends.
You are at GOA.
Last Scenario :
Two guys fighting.
Third guy comes and shoots both of them.
You are definitely in UTTAR PRADESH.
♥ :p :D
Scenario 2 :
Two guys are fighting. Both of them take time out & call their friends on their mobiles.
Now 50 guys are fighting.
You are in PUNJAB.
Scenario 3 :
Two guys are fighting & a third guy comes along and tries to make peace.
The first two get together and beat him up.
That's DELHI.
Scenario 4 :
Two guys are fighting. A crowd gathers to watch.
A guy comes along and quietly opens a tea stall.
That's AHEMDABAD.
Scenario 5 :
Two guys fighting and a third guy comes along then a forth and they start arguing about who's right.
You are in KOLKATA.
Scenario 6 :
Two guys fighting and third guy comes nearby house and says "don't fight in front of my place, go somewhere else ."
That's KERALA.
Scenario 7 :
Two guys fighting third guy comes along with a carton of beer.
All sit together drink beer and abuse each other and go home as friends.
You are at GOA.
Last Scenario :
Two guys fighting.
Third guy comes and shoots both of them.
You are definitely in UTTAR PRADESH.
♥ :p :D
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