Recovery speed, in particular, can be notably faster: Data can be accessed directly from
disk (assuming the data still resides on
disk and has not been archived to tape); it does not have to be "re-assembled" as it would in tape implementations that rely on multiplexing to boost backup performance.
Pain point of time
For this reason, WORM
disk technology is becoming more widely accepted for audit, archive and imaging applications.
Directions in optical storage
The team calculates that the inner edge of the
disk is only twice as far away from the hole's center as is the event horizon.
A new spin: X-rays shed light on black holes
Astronomers used to think that all protoplanetary
disks are shaped basically like Frisbees.
Banana split in space
*1 As of July 14, 2005, based on a JVC survey, no other consumer camcorder offers a built-in hard
disk drive and MPEG-2 recording.
JVC Introduces Hard Disk Camcorders Everio GZ-MG70, GZ-MG50, and GZ-MG40 - World's First Collection of Camcorders with Built-In Hard Disk Drive
Policies in the 2.0 release include the ability to retain key data on
disk for faster recovery of historical information, automated creation of up to four copies of data for redundant protection, and retention of local copies of data after a copy has been exported.
ADIC introduces major advance in disk-based backup
Second, unlike
disk or RAM, tape is inherently sequential and imposes delays on retrieving any file housed on a physical data set.
The digital tsunami: a perspective on data storage: to meet demands, organizations will need to increase today's storage offerings 10 times. But how will such dramatic increases be addressed by technology and systems in the next few years?
If an entry-level RAID controller costs $800 while a standard controller costs $400 and its 9GB drives cost $800 each, a
disk drive subsystem would cost $3,200; users would be paying a 38% premium for RAID-5 protection.
Averting disaster with redundant hardware
If compressing your entire hard
disk makes you apprehensive or you don't need that much added space, there is an intermediate solution: zipping individual files or programs and storing them in compressed form either on a hard
disk or on some other convenient medium.
Running out of storage space
The computer had a screen with 320 by 200 resolution, I believe, no hard
disk drive (I added one later), 128 K of RAM, and a 14 inch color monitor.
The wonderful evolution of personal computers
Today, the bank can store an entire month's reports and records on a single 940-MB write-once
disk for about $145.
Slaying the paper dragon
Disks are numbered as they are filled up, and stored in numerical order with a listing of files written on the outside of each
disk.
The great data round-up
New images from Hubble's Advanced Camera for Surveys provide firm evidence of the second
disk, David Golimowski of Johns Hopkins University in Baltimore and his colleagues report in the June Astronomical Journal.
Double disks
This technology is significantly different than magnetic
disk and tape emulation since the Write Once properties of UDO are inherent to the recording surface of the media and are not a function of software or firmware controls.
Optical storage remains a top choice for compliance
Advanced Digital Information Corporation (Nasdaq:ADIC), supplier of intelligent storage solutions for the open system market, announced recently an expansion of its Pathlight VX disk-to-tape backup solution that will bring the benefits of
disk performance, RAID fault tolerance, and an integrated path to tape to a larger community of IT end users.
Adic expands Pathlight VX disk-to-tape solutions