vsan deduplication

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

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

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

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

To ensure the arrival rate of information request messages, the server will send the same request message (RequestMessage) multiple times without receiving the response message in time ), all text content, including MsgId, is consistent. To ensure the arrival rate of information request messages, the server will send the same request message (RequestMessage) multiple times without receiving the response message in time ), all text content, including MsgId, is consistent. This mechanism ensures

Recently encountered 1 user feedback about exporting PST through Office 365 Exchange online, the following link is an article I wrote earlier about how to export PST in Office 365 Exchange Online: http://liujb.blog.51cto.com/269257/1784934 The following are information about the problem: Problem Description: Exchange online in-place ediscovery search results exported to PST file when exported to 1 PST, not exported by user name separately PST Processing process: Customers before exporting PST is

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

This article mainly introduces how to implement array deduplication in JS, and analyzes the operation skills of JS to implement deduplication through array traversal, calculation, and other methods in the form of examples, for more information about how to implement array deduplication in JS, combined with the instance form, this article analyzes how JS achieves

This article mainly introduces python's implementation of text de-duplication without disrupting the original order. You can refer to the code you need and find it online, which is quite efficient, it is particularly suitable for deduplication of dictionary files. # Coding = utf-8import sysdef open_txt (): # Open the TXT text write array try: xxx = file (sys. argv [1], 'R') for xxx_line in xxx. readlines (): passlist. append (xxx_line) xxx. close ()

Php array element deduplication 1. remove duplicates using the array_unique method To deduplicate array elements, we usually use the array_unique method. this method can be used to deduplicate the elements in the array. 123456 Output: Array( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9)123456789101112 After deduplication, the key values a

// Define an array to store the results after deduplication$ Result = array ();// Read the uid list file$ Fp = fopen('test.txt ', 'r ');While (! Feof ($ fp )){ $ Uid = fgets ($ fp );$ Uid = trim ($ uid );$ Uid = trim ($ uid ,"");$ Uid = trim ($ uid ,"");If ($ uid = ''){ Continue;} // Use uid as the key to check whether the value existsIf (empty ($ result [$ uid]){ $ Result [$ uid] = 1;} }Fclose ($ fp );// Sa

Hadoopmapreduce data deduplication assuming we have the following two files, we need to remove duplicate data. File0 [plain] 2012-3-1a2012-3-2b2012-3-3c2012-3-4d2012-3-5a2012-3-6b2012-3-7c2012-3-3cfile1 [plain] 2012-3-1b2012-3-2a2012-3-3b2012-3-4d2012-3- Hadoop mapreduce data deduplication assumes that we have the following two files, and we need to remove duplicate data. File0 [plain] 2012-3-1 a 2012-3-2 B

/// /// List generic deduplication/// /// /// Private void RemoveRepeaterUrl (ref List {For (int I = 0; I {For (int j = (I + 1); j {If (list [j] [ItemID] = list [I] [ItemID]){List. RemoveAt (j); // remove identical itemsI = 0; // deduplication from the beginning. If there are a large number of repeated items in the array, only one deduplication cannot solve the p

Mongodb deduplication, aggregation, query explanation, mongodb Aggregation I recently learned about mongodb and some people understand it: 1. deduplication Repeated template. getCollection (collectionName). distinct () returns the list set, which is the result after deduplication. 2. Aggregation Aggregation aggregation = Aggregation. newAggregation (Criteri

PHP two-dimensional array deduplication example analysis This article analyzes the PHP two-dimensional array deduplication method. We will share this with you for your reference. The details are as follows: We all know that the one-dimensional array is used to reuse the system function array_unique ($ arr) Then today I used a two-dimensional array, and I also want to remove duplicates. Baidu has a lot of d

: This article mainly introduces the PHP two-dimensional array deduplication method (retaining each key value while removing repeated items)-The uniqueness of the two-dimensional array, if you are interested in the PHP Tutorial, refer. Deduplicate the following two-dimensional array: $arr = array( '0'=>array( 'name'=>'james', 'age'=>30, ), '1'=>array( 'name'

PHP two-dimensional array deduplication method (preserving individual key values while removing duplicates)--uniqueness of two-dimensional arrays For the following two-dimensional arrays, it is required to be de-weighed: $arr = Array (' 0 ' =>array ( ' name ' = ' James ', ' age ' =>30, ), ' 1 ' =>array ( ' name ' = > ' Susu ', ' age ' =>2

1) Open the Add Server role and function wizard and click Next 650) This. width = 650; "Title =" clip_image002 "style =" border-top: 0px; border-Right: 0px; border-bottom: 0px; border-left: 0px; display: inline "border =" 0 "alt =" clip_image002 "src =" http://img1.51cto.com/attachment/201410/9/1559738_1412821674fued.jpg "" 558 "Height =" 395 "/> 2) Check the data deduplication function. 650) This. width = 650; "Title =" clip_image004 "style =" bor

Javascript array deduplication, javascript Array // Remove the Array of numeric elements function sortnum (a, B) {return a-B;} Array. prototype. unique1 = function () {this. sort (sortnum); var newnumbers = [this [0]; for (var I = 0; I Javascript array deduplication Arr is an array to be duplicated, and ret is a new array obtained after deduplication. hash is e

I think we should first perform array deduplication when practicing ACM in nine degrees, because most of my work is written in PHP. Code In PHP, only one array_diff () function can be used to deduplicate arrays. However, in C language, I don't have any ready-made API functions that can be called by me, So I implemented Algorithm Array deduplication, but this algorithm has obvious defects. I will first dis