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{{original research|date=December 2012}}
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{{unreferenced|date=December 2012}}
'''Storage efficiency''' is the ability to store and manage data that consumes the least amount of space with little to no impact on performance; resulting in a lower total operational cost.  Efficiency addresses the real-world demands of managing costs, reducing complexity and limiting risk. The Storage Industry Networking Association ([[Storage Networking Industry Association|SNIA]]) defines storage efficiency in the [[SNIA Dictionary]] as follows:
 
: <math> \text{storage efficiency} = \frac{\text{effective capacity} + \text{free capacity}}{\text{raw capacity}}. </math>
 
The efficiency of an empty enterprise level system is commonly in the 40%&ndash;70% range, depending on what combination of [[RAID]], mirroring and other data protection technologies are deployed, and may be even lower for highly redundant remotely mirrored systems. As data is stored on the system, technologies such as deduplication and compression may store data at a greater than 1-to-1 data size-to-space consumed ratio, and efficiency rises, often to over 100% for primary data, and thousands of percent for backup data.
 
==Technologies==
Different technologies exist at different and sometimes multiple levels:
 
''[[Snapshot (computer storage)|Snapshot]] technology''&mdash;known formally as "delta snapshot technology"&mdash;gives the ability to use the same dataset multiple times for multiple reasons, while storing only the changes between each dataset. Some storage vendors integrate their snapshot capabilities at the operating system and/or application level, enabling access to the data the snapshots are holding at the system and/or application management layers.   Terminology around snapshots and "clones" is currently confusing, and care must be taken when evaluating vendor claims. In particular, some vendors call full point-in-time copies "snapshots" or "clones", while others use the same terms to refer to shared-block "delta" snapshots or clones. And some implementations can only do read-only snapshots, while others are able to provide writable ones as well.
 
''[[Data deduplication]] technology'' can be used to very efficiently track and remove duplicate blocks of data inside a storage unit. There are a multitude of implementations, each with their separate advantages and disadvantages. Deduplication is most efficient at the shared storage layer, however, implementations in software and even databases exist. The most suitable candidates for deduplication are [[backup]] and [[platform virtualization]], because both applications typically produce or use a lot of almost identical copies. However, some vendors are now offering in-place deduplication, which deduplicates primary storage.
 
''[[Thin provisioning]] technology'' is a technique to prevent under-utilization by sharing the allocated, but not yet utilized capacity. A good example is [[Gmail]], where every Gmail account has a large amount of allocated capacity. Because most Gmail users only use a fraction of the allocated capacity, this "free space" is "shared" among all Gmail users.
 
==Major advantages==
Actively increasing storage efficiency using these techniques has the following advantages:
 
''Backup and restore''. Using snapshots, time used for both backup and restore [[Recovery time objective|RTO]] can be minimized. This can greatly reduce cost, and reduce hours of downtime to seconds of downtime. Snapshots also allow for better [[Recovery Point Objective|RPO]] values.
 
''Reducing floorspace''. When less storage is required to store a given amount of data, less data center floorspace is required.
 
''Reducing energy use''. When fewer spindles are required to store a given amount of data, less power is required.
 
''Provisioning efficiency''. Writable delta snapshot technology allows for very fast provisioning of writable data copies. This reduces waiting time in processes that require that data. Examples are [[data mining]], [[test data]], etc. Snapshot integration at the [[Operating system|OS]] and/or application level also leads to faster provisioning, because system and/or application managers are able to manage their own snapshots without having to wait for storage managers and/or provisioning procedures.
 
==Major commercial players==
All major vendors are implementing one or more of these technologies, because storage efficiency is becoming more and more popular. Customers are facing storage requirements that are growing exponentially and a strong demand for cost-cutting. The major vendors are [[NetApp]], [[EMC Corporation|EMC]], [[Hitachi Data Systems|HDS]], [[IBM]] and [[HP]].
 
[[Category:Computer storage|Efficiency]]

Latest revision as of 11:20, 25 November 2014

Whenever a person informs you to wash your car, what"s the very first thing that comes into your mind?

For most people, cleaning cars mean getting a line, some soap, a bucket, and a sponge. And this means getting all wet. Iphone Streetfire.Net is a splendid resource for extra resources concerning the inner workings of it. That is mainly because cleaning a car generally way to a big section of people as cleaning only the exterior of a car. Just keep in mind just how many movies, music videos, and documentaries show people cleaning only their cars outdoor. Even when you do try to research images about cleaning an automobile, you"d probably be provided with a list of images that show people getting wet and soapy while cleaning the cars exterior.

Now, to wash up your own personal vehicles exterior, you need to be greatly able to get wet. It could also get a little real and would also mean you needing to sweat out a little. After all, remember that your cars exterior is usually the one that suffers and meets all the dust, dust, dirt, and other components when driving. Therefore dirt can actually accumulate on it making cleanup quite a chore.

First, roll up all of your windows. Be sure that they are closed tightly. Shut all your opportunities also. Start with cleaning and rinsing your car using a line, when you have done so. Concept of the thumb is to start from the top, making your way down for your cars tires.

Following this, take a bucket full of warm water. You can try putting in car detergent and on occasion even mild dishwashing liquid. Some vehicle experts also suggest that you use a car soap that"s been made especially for cars so as to protect the color. Take your pick. Then, wash your vehicle using a sponge o-r a magazine. Should you require to be taught further on Forum, there are many online resources people could investigate. Be sure to go through everything. Then, rise off all of the soap using the line.

To dry your car, you can use a chamois cloth or even a towel but make sure when you use it that it is clean. Otherwise, you would only be damaging the cleanup job that you just finished..

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