The hottest storage close-up tape technology is no

  • Detail

Storage close-up: tape technology is not yesterday's yellow flower

tape library has developed to today. It is not a dead end, as some manufacturers claim. On the contrary, it is more and more youthful

since the end of last year, tape manufacturers have launched a new generation of tape products one after another. In November last year, IBM launched the tape drive IBM TotalStorage 3580 LTO generation 3 using lto-3 technology, claiming that it can complete 80mb of data throughput per second and store a book with 5million numbers in three seconds. In March this year, HP launched two new DLT technology products, HP StorageWorks sdlt600 and DLT vs160, which are the latest products of SDLT tape drive series and DLT vs tape drive series respectively

not long ago, Tengbao data strongly launched the fastest and smallest half height LTO ULTRIUM 2 tape drive: 420lto. This product is a 5.25 inch tape read by the half height tape drive, which backs up data at a speed of 48mb/s and a capacity of 400gb. Compared with the general LTO tape drives on the market, Tandberg 420lto has the lowest cost per GB and the lowest power consumption

looking at the situation in recent years, the booming tape storage market has its profound background. The demand of enterprises for storage is growing with the expansion of business, and various types of storage devices have their "reasons for existence". After many global disasters, businesses and politicians around the world have a deeper understanding of storage. More enterprises begin to pay attention to backup and storage to prevent the impact of data loss due to accidents and improve disaster tolerance

in the storage field of high-capacity data backup and archiving, tape is still the best medium because of its advantages such as mobility and low price. Tape storage has become an indispensable technology for disaster recovery backup because of its high reliability, low average price of storage unit, convenient capacity expansion and many other advantages

tape storage refers to tape drives and tape libraries. Tape drive is an economical, reliable, large capacity and fast backup equipment; As the main equipment of centralized network data backup and storage, tape library is becoming more and more important. Tape library is a cabinet type tape backup device that integrates multiple tape drives. It is generally composed of several tape drives and mechanical arms, which can automatically load and unload tapes. The storage capacity can reach hundreds of Pb (1pb=1million GB), which can realize continuous backup and automatic tape search. It can also realize intelligent recovery, real-time monitoring and statistics under the control of drive management software. The whole data storage and backup process is completely free from manual interference. Automatic tape loader is a small tape automatic storage and backup device, which is also a tape library. It usually consists of a drive and multiple tapes, and can back up 100g ~ 200g or more data

the tape market is growing rapidly. According to different applications, from a global perspective, according to IDC statistics, the market launch of medium and high-end tape drives (DLT, AIT, LTO, 3590, 9840, etc.) will increase from 650000 in 2000 to 1.3 million in 2005; The market capacity increased from less than US $2billion in 2000 to more than US $3.5 billion in 2005. The low-end tape drive market is expected to grow at an annual rate of 10%. Various low-end tape drives still maintained the largest market share of tape drives with a 46% share in 2000

as the disk based technology becomes more and more mature, the price is getting lower and lower, some manufacturers have launched virtual tape library products, and some manufacturers have vigorously promoted the storage strategy of information lifecycle management, which has led to the volatile situation of the whole storage market. That said, tape will continue to play an indispensable role in backup, recovery, and archiving strategies in the enterprise

when storage area network sans become popular, customers also begin to turn to the new tiered storage architecture and implement the information lifecycle management strategy, they will have higher requirements for the return on investment of storage devices. Users' tiered storage network architecture requires tape to provide greater capacity, while maintaining the high speed of data transmission in San environment

the market will always make wise choices. The survival of the fittest and the survival of the fittest. Today, the tape market has formed a complex pattern of coexistence of multiple technologies and cross occupation of the market. Nowadays, the mainstream tape Market technologies include ADR, DDS, DLT, AIT, LTO and their upgraded versions s-dlt, s-ait and lto-3

at present, the loudest voices in the market are DLT and LTO. Let's take a detailed look at the technical indicators and characteristics of these two technologies

dlt technology

dlt or SDLT tape cartridge, only one spool is used to roll up the tape. There is a big ring at the end of the tape. When the tape cartridge is installed on the tape drive, the tape will be pulled out from the inside and rolled onto the spool in the tape drive. The inside is designed with guide rollers, but the data surface will not touch any rollers when rolling

only the read-write head will touch the data surface. DLT is mainly promoted by Kunteng. Tengbao data was once a supporter of DLT at this stage, but under the strong momentum of LTO, it has begun to sell products of LTO technology

lto technology

products using LTO technology work in a similar way to DLT tape drives. In its relatively small cassette, it also adopts a single spool design to roll up 600 meter long tapes. When installed on the tape drive, it will also be rolled onto the spool inside the tape drive. 4 KB memory chips are built into each cassette to ensure uninterrupted data communication. In addition, the tape drive will also store the information that the tape index, serial number, first use date and use history have made great progress here. The single disk capacity of lto-3 technology has reached 800gb, and the speed is 160mb/s. The main manufacturers are IBM, HP and Seagate. At present, it mainly focuses on the market segmentation of intermediate products

the format dispute of tape storage is relative and staggered by 10mm, which is also a technical barrier set by manufacturers, causing trouble to users and high costs to some extent. From the initial product selection to the actual use, all kinds of incompatibilities will make users difficult, especially the purchase of high consumables such as tape media. Because drives of different formats and tape media in some places will become stress concentration areas, users must purchase corresponding tapes for drives of different formats. This purchase process requires considerable knowledge, energy and time. For enterprises, This means that the use cost increases

major manufacturers that promote LTO include IBM, HP, etc. with the strong support of manufacturers, LTO, as a development protocol, has been supported by a wider range of users and integrators. Kunteng obviously recognized this momentum and completed the acquisition of certance company with great efforts. Kunteng's move can be described as killing many birds with one stone. First, it removes a strong competitor in the tape market. Secondly, certance is the first company to produce lto-3 drives, which makes Kunteng a leading player in the LTO market. Finally, the acquisition of certance also brought quantum low-end tape format technology TRAVAN and dds/dat

according to the research prediction of Freeman, a market research organization, lto-2 was in a booming state last year, and its product sales accounted for more than 40% of the global 2billion compact tape drive sales last year. Therefore, in the future, tape storage LTO will continue to lead the user market and become the mainstream specification. The tape price of LTO is also cheaper than that of DLT. The tape price of the first generation of DLT is equal to that of the second generation of LTO. However, the DLT market is not necessarily shrinking, because the specifications of LTO and DLT are incompatible, and the existing customers of DLT will still use the new generation of DLT tape drives. In terms of the price efficiency ratio of products, the gap between DLT and LTO will not be too large. It is impossible to predict whether LTO will completely replace DLT in the next few years. The decision-making power is held by a manufacturer, whose name is Kunteng

tips on tape purchasing:

when purchasing tape equipment, you need to pay attention to the following points: determine the required tape equipment capacity by looking at the original data volume, data growth rate, data backup cycle, backup mode, etc; After the capacity is established, determine the number of drives and tape drives required according to the backup window time, data throughput, etc; In addition, it is necessary to determine the storage network architecture and backup software

manufacturer selection: first, consider the mechanical performance indicators, including the grasping speed, safety, stability, etc. of the manipulator; Secondly, we should consider the compatibility and whether it supports the mixed installation of tape devices of various technologies; In addition, MTBF, service, etc. should be considered. (end)

Copyright © 2011 JIN SHI