customer deduplication

Reading: deduplicationThe emergence of technology has a certain source, so we should start from the beginning. Although the current price of storage media has plummeted, the Unit storage cost is already very low. But it still cannot keep up with the growth rate of enterprise data files. As a result, energy consumption, data backup management, and so on have become difficult issues. In addition, some duplicate files also increase. To this end, enterprises urgently need a technology to ensure that

"){Var pcount = 0;For (var p in obj1 ){Pcount ++;If (! IsEqual (obj1 [p], obj2 [p]) {Return false;}}For (var p in obj2 ){Pcount --;}Return pcount = 0;} Else if (typeof (obj1) = "function" typeof (obj2) = "function "){If (obj1.toString ()! = Obj2.toString ()){Return false;}} Else {If (obj1! = Obj2 ){Return false;}}} Else {Return false;}Return true;}Var temp = arr. slice (0); // copy an array to tempFor (var I = 0; I For (j = I + 1; j If (isEqual (temp [j], temp [I]) { Temp. splic

Function descriptionData deduplication refers to finding and deleting duplicates in the data without affecting their fidelity or integrity. The goal is to change (32-128 KB) small chunks by splitting the files into sizes, identify duplicate chunks, and then keep a copy of each chunk to store more data in a smaller space. A redundant copy of a chunk is replaced by a reference to a single copy. Chunks are compressed and then organized into the System Vo

This article summarizes four methods of array deduplication in javascript, which are loop matching deduplication, JSON deduplication object deduplication dictionary deduplication, and queue recursive deduplication, the INDEXOF

1. What is deduplication?Simply put, when data is transmitted or stored over the network, multiple identical copies are not transmitted or stored.Data to reduce the occupation of network bandwidth and storage space. In fact, the previous SIS (single-instance storage) is a dedu technology, but its de-duplication unit is file. Currently popularThe deduplication technology is based on data blocks. The de-dupli

URL deduplication bloom filter algorithm, error and others Fly with me, in the perfect world --- question I recently read some books, formulas, and algorithms. If I use a word to pick them up, this is an error. Speaking of errors reminds me of a story of my childhood. When I was a child, a friend of his family opened a small store on the second-level road. One day, the customer said to him with the just-bo

Storage has been a major drag to reduce operating costs, although the cost of storage has been decreasing in recent years, but the growth rate of enterprise data is far more than the reduction of storage costs, so how to reduce the pressure on the storage to the enterprise is a big test for IT staffMicrosoft has brought a surprising feature in Windows Server 2012, called Deduplication, which allows Windows Server 2012 to store more data in less physic

Array deduplication of JavaScript learning notes, javascript learning notes Recommended reading:Add, delete, modify, and query the array of JavaScript learning notes Array Summation Method for JavaScript learning notes Random sorting of JavaScript learning notes Array In other words, the interviewer often asks the JavaScript array de-duplication question. Recently, I just learned about the JavaScript array and took the opportunity to sort out some met

For SQL deduplication, I would like to briefly introduce myself. If you have any suggestions or do not understand it, please give it a little more. There are two common ways to remove SQL deduplication: DISTINCT and ROW_NUMBER (). Of course, ROW_NUMBER () has many important functions besides deduplication, I will give you a brief description of what I actually us

Javascript implements multiple methods for Array deduplication, and javascript implements arrays. Don't talk nonsense, just pick up the dry goods! Let's talk about the requirements of this instance: Write a method to implement de-duplication of arrays. (Requirement: Execute the method, pass an array, and return the new array after deduplication. The original array remains unchanged. During implementation, o

Timespan: 1.22-1.23Chun-ho ng, mingcao Ma, Tsz-yeung Wong, Patrick P. C. Lee, John C. S. Lui:Live deduplication storage of Virtual Machine images in an open-source cloud. Middleware 2011: 81-100 (GS: 3) This article proposes livedfs, a de-duplicated file system. Livedfs is modified based on the Linux File System (ext3) with the deduplication function added. It also uses spatial localisty, prefetching of m

650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M02/89/83/wKioL1gWjRuDiLjKAAcJ81WSmS0152.png-wh_500x0-wm_3 -wmp_4-s_398321099.png "style=" Float:none; "title=" Lduan Server 2012 Data deduplication DFS namespace service on (12) _ Page _1.png "alt=" Wkiol1gwjrudiljkaacj81wsms0152.png-wh_50 "/>650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M01/89/85/wKiom1gWjSXyeuQ4ABW-MH9igyA013.png-wh_500x0-wm_3 -wmp_4-s_2516871383.png "style=" Float:non

What should you do if the recovery data grows too large and traditional disaster recovery methods cannot achieve the goal? Some new technologies, such as deduplication, storage Tiering, and data management policies, can help you reduce the high cost of disaster recovery, at the same time, it can also achieve the expected recovery time objective (rediscovery time objective or RTO ). In the previous article, we gave an example of a company ignoring the

Capacity optimization. Data deduplication in Windows Server 2012 can store more data in a smaller physical space. It achieves higher storage efficiency than previous versions that use single Instance storage (SIS) or new technology file system (NTFS) compression. Data Deduplication uses sub-file variable-size chunking and compression, and the optimization rate for regular file servers is 2:1, while virtual

Deduplication has been widely used in data backup. We found that for backup applications, we can delete and compress data by repeat data about 20 times, thus saving a lot of storage space. How can I retrieve duplicate data blocks? If byte-level comparison is adopted, the performance of the entire system is certainly unacceptable. To solve this problem, you can use the data fingerprint technology to retrieve duplicate data blocks. The principle of this

This article mainly introduces python's implementation of text deduplication without disrupting the original sequence. For more information about python's implementation of text deduplication without disrupting the original sequence, see the next article, for more information, see The code is also found on the Internet, which is very efficient and especially suitable for

VNX data block deduplication can be enabled on each Pool.1. To enable deduplication for a traditional RAID group LUN, you must first migrate it to the storage pool ).2. Once deduplication is enabled, the LUN will be migrated to the deduplication container. After the migration is complete, the LUN will become Thin LUN.T

PHP two-dimensional array deduplication method (retain each key value while removing repeated items)-uniqueness of the two-dimensional array. PHP two-dimensional array deduplication method (retain each key value while removing repeated items) -- The uniqueness of the two-dimensional array requires deduplication for the following two-dimensional array: $ arrarray

17 jQuery online QQ customer service code sharing and 17 jqueryqq Customer Service 17 jQuery online QQ customer service codes are shared with you !! Thank you! My name is Lei Feng ~~ Click the jQuery sidebar to expand and contract the online QQ customer service code. The fixed layer on the right of the jQuery web pa

If you don't understand what I'm talking about, read the Narrative: http://www.cnblogs.com/tonyqus/archive/2006/12/05/583305.html ========================================================== ========================================== These two Customer Services are really unprofessional (it is not clear whether they are one or two), whether it is polite language, service attitude, service quality, each item is seriously substandard. First, it is polit