LTO-6 tape with up to 6.25TB capacity ships. Lucas
Mearian. Computerworld. November 26, 2012.
Tape media and drive companies have begun shipping the sixth generation
of linear-tape open (LTO) technology, which like previous generation
upgrades, significantly increases the capacity and data throughput
capabilities for backup and archive applications.
LTO-6 cartridges can hold up to 2.5TB natively or 6.25TB of
compressed data. Compared with previous generation LTO-5 drives and
cartridges, the new LTO-6 cartridges more than double capacity (with
compression) and offer a 40% performance boost. LTO-5 held up to 1.5TB
natively and 3TB of compressed data. The LTO-5 drives had a native data
transfer rate of 200MBps or up to 1TB per hour with 2:1 compression. LTO-6 tapes also include encryption and WORM (write-once, read many)
capabilities that were also offered with the past two generations of LTO
tape drives and media.
LTO-6 drives will provide backward compatibility with the ability to
read and write LTO-5 cartridges and read LTO-4 generation cartridges.
This blog contains information related to digital preservation, long term access, digital archiving, digital curation, institutional repositories, and digital or electronic records management. These are my notes on what I have read or been working on. Please note: this does not reflect the views of my employer or anyone else.
Friday, December 14, 2012
128TB tape cartridges key to kilometer-size telescope
128TBtape cartridges key to kilometer-size telescope. Computerworld. Lucas Mearian. December 6, 2012.
In one day, the telescope's dishes will generate 10 times
the network traffic produced at the same time on the global Internet. They will
feed about 10 petabits of data (1 billion gigabits) per second into a central
computer that will have the processing power of about 100 million of today's
PCs. The project plans to generate 1
million GB of data per day and store 300 to 1,500 petabytes (1.5 exabytes) of
data per year. IBM is responsible for the data storage and they plan to use
tape. "The tape will be used as a deep archive." Construction is
expected to start in 2016 and take four years. The exascale supercomputer is expected
to be completed by 2024.
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