Open Source Solutions for deduplication: Opendedup / SDFS.

disk storage. For example, the method of repeated substitution of references to the copies of the data source file. This solution enables carriers to reduce capacity to store the same amount of information.

For several years deduplication technology has gone from a promising technology for very large enterprises to nearly ubiquitous aspect of any backup and recovery.

Deduplication has become so important that manufacturers of storage systems have been forced to spend millions - even billions - for the purchase of Deduplication Technologies. For example, last summer. EMC. (NYSE: EMC) acquired Data Domain for $ 2 billion.

We are now seeing the next stage in the evolution of technology exclude repetitive data: the emergence of Open Source solutions for deduplication. Now suschestvyut solutions with open source software from vendors (Bacula, Nexenta, Sun / Oracle and Zmanda) and some new players, such as Opendedup, stimulating the development of proprietary systems and literally handing out its own technology.

Opendedup.

Presenting in March its new solution to an open-source, Opendedup immediately hit the headlines. The system deduplication file system for Linux, known as the SDFS, Opendedup was designed for businesses with a virtual environment is not only highly efficient but also scalable and affordable solution.

According to one developer, Sam Silverberg (Sam Silverberg), ' to develop SDFS was to take advantage of the performance and scalability provided by object-based file system with optimized memory '. The result: Opendedup / SDFS can handle petabytes of data or more, support more than 3 TB per gigabyte of memory with a block size of data in 128K; perform inline deduplication at a speed of 290 Mb / sec, has a high total input-output performance, supports VMware ( and Xen . We do not forget to mention that all this is FREE?.

Opendedup / SDFS set for 20 minutes in the normal way Linux, said Silverberg. And the compilation is not required. Tom SDFS assembled and created as stnadartnye Linux filesystems, and the team are familiar to anyone who has ever installed a file system in Linux. For those who need help, there is a brief guide and detailed instructions on the site Opendedup.

According to Silverberg, any organization, largely using virtalizatsiyu (SDFS works with hundreds of virtual machines through a general or individual volume control and can clone the existing very quickly ) looking for efficient ways of data storage and backup. SDFS- volume can serve as. backup. on the disks, and help to increase the bandwidth I / O interfaces. In addition, Silverberg emphasizes the advantage for organizations that need to archive large amounts of data - SDFS- volume can be represented as a centralized NAS- arrays, as well as unstructured data on the third level of user storage.

Is Opendedup / SDFS is really a good alternative to proprietary solutions?.

'SDFS has the performance, scalability and price attractiveness, surpassing many of the proprietary solutions, but I dumab, not free solutions are also some real technical advantages ... ' For example, technical support 24 hours a day, seven days a week, and replication are not available today for making an open-source '.

SDFS is a file system that is easily installed on a storage device, but this decision is more difficult to get a really deep integration with environment and backup hypervisor without tweaks in the API, the steps of their own hands.

However, Silverberg adds that if the organization is looking for performance, scalability, and deduplication, SDFS - a perfect solution. That's why Opendedup. org only watched the first week of 14,000 unique visitors, most of them loaded the Opendedup-SDFS.

Source:. enterprisestorageforum. com.

The MacBook has become a leader of sales on Amazon

White MacBook with a laptop hard drive capacity 120 GB worth of U.S. dollar in 1294 became the best selling computer in the online store Amazon to the period of Advent. Reducing the cost of U.S. $ 75-150 to allow the model and two other models of laptops from Apple (MacBook hard drive with 80 GB and MacBook Pro hard drive with 120 GB) enter the top ten best sellers in the shop Amazon.

Today the rating changed. The first place in sales in the online store is a laptop HP Pavilion DV6626US, which sells for 899 U.S. dollars. Yesterday the leader of the MacBook slid into second place. In third place in the ranking of online sales located Laptop HP Pavilion DV6662SE, the fourth - Internet Tablet Nokia N800, the fifth - Desktop PC HP Pavilion A6200N. The top ten also included Diederich laptops Asus Eee 4G-Galaxy, HP Pavilion TX1320US, Sony VAIO VGN-FZ250E / B, Desktop PC HP Pavilion M8200N. Closes ten Apple MacBook Pro hard drive with 120 GB.

compulenta. ru.

hamsters are sold

The history. here. The day before yesterday hamsters were sold. At $ 100, instead of the planned 50. But only two out of three. The third left a female as a gift to the birthday girl friend.

An interesting way to sell yourself. My daughter carried the dzhungarikov on bird market and innocently asked the seller of the same dzhungarikov, not whether she will take them. In general, acted as a wholesaler.

From these 26 200 rubles spent on sweets, while the remaining deferred.