27 Dec 2006

SDLT Technology

Author: admin | Filed under: Technology

SuperDLT S-DLT tape technology is the next generation of storage backup tape drives DLT technology platform. — Super DLT tape drives backup technology is based on tour LGMR laser technology of magnetic storage. The LGMR uses a unique combination of the best magnetic and optical technologies for a dramatic increase in the number of registration of securities of the sustainability of the surface of the media data.

The SDLT is the next generation of Quantum. The first version of SDLT is comparable to LTO Ultrium native with a capacity of 110GB and the proportion of transmission of data from 11MB/sec for SDLT. The LTO Ultrium has a native capacity of 100 GB and a transfer rate of 15MB/sec native.

SDLT is one of the most important in the new formats of the next generation of digital linear tape DLT. Disk based on the technology Super DLT exceed the capacity of 35GB native DLT IV format, with which it should be compatible. The tour LGMR laser technology magnetic recording was in Super DLT, a combination of optical and magnetic recording technology. With the help of LGMR, Super DLT laser, precisely in line to bring the heads of the application. In the heart LGMR optics is a servo system, pivoting supports optical servo POS.

The pivoting POS combines high density optical magnetic writing / reading from the collection of data with laser servo Manager. It is designed to cycle. The pivoting optics has a much lower sensitivity to external influences. The POS is the way density, which is probably not possible with other systems in the band. The POS system reduces the cost of production. The POS eliminates the need for pre-formatting of the band. Through the implementation of unused optical servo on the back of the media, 10% to 20% more capacity purchased. In this way, the entire surface of the application is made available to the actual data.

The optical laser follows along on the back of the media that the media are in the POS. Therefore, the media, the slopes integrated optical goals. The POS Assembly revolves around a single point mounting, the magnetic read / write leader in the optical and reading of data tracks or write data on the tape.

An advanced form of partial response maximum likelihood PRML have been established. This technique is usually in conjunction with hard drives, the LTO from the linear technology. In this way, the capacity and the transmission of data by the interest rate increases in the coding of high efficiency application densities.The benefits of retail outlet, that the media format is necessary and 100% of the volume is now available for the collection of data

The following are the technical details of the various generations of backup media SDLT tape

SDLT220

Capacity 110 GB compressed capacity 220 GB

(2:1 compression) Native DTR 11 MB / s compressed DTR 22 MB / s Media SDLT I interfaces Ultra2 SCSI LVD, HVD

SDLT320

Native capacity of 160 GB compressed capacity 320 GB

(2:1 compression) Native DTR 16 MB / s compressed DTR 32 MB / s Media SDLT I Ultra2 SCSI interfaces, Ultra160 SCSI

SDLT640

Capacity 320 GB compressed capacity 640 GB

(2:1 compression) Native DTR 32 MB / s compressed DTR 64 MB / s SDLT II media interfaces Ultra320 SCSI, Fibre Channel

SDLT1280

Capacity 640 GB capacity 1.28 TB compressed (2:1 compression) Native DTR 50 + MB / sec compressed DTR 100 + Mbps SDLT Media III interfaces to determine

SDLT2400

1.28 TB capacity 2.4 TB compressed capacity (2:1 compression) Native DTR 100 + Mbps DTR tablet to 200 MB / s SDLT Media IV to determine Interfaces

HP SDLT storage medium is the ideal solution for backup and the Ministry of data center, where the performance, capacity and costs are essential. SDLT technology provides up to 160 GB of memory capacity and a 16MB/sec supports data rate (native).

2nd Super DLT II generation 600GB data cartridge offers high capacity and low cost per gigabyte for customers to invest in backup technology, DLT. Super DLTtape II Cartridge DLTSage support for the improvement of the media and the diagnosis.

* High performance: up to 32MB/sec tablet gungsrate

* Complete: reading with DLTtape

* From large capacity supported capacity of up to 320 GB

* Reliability: combines the best proof optical and magnetic technologies for users with the capacity and improvements in the performance

* HP cartridges SDLT cleaning: 20 provide clean

* With 600 GB capacity and transfer rate of 72MB/sec, HP SDLT II 600 GB data cartridges, with high capacity and low cost per gigabyte for customers to invest in backup technology, DLT.

Super DLTtape II * uses a new super-PET (S-PET) film as a basis for reducing the thickness of a total of 10%. The result is a band with a larger capacity of a Super DLTtape I cartridge.

* Optics leader servo information systems is encoded on the back of the media, the increase in the number of tracks to the start of the media surface. This enables a higher capacity than the cartridges of Super DLT Volume II

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