Data from Columbia disk drives survived the shuttle accident
Edwards often manages what appears impossible. He has recovered precious data from computers wrecked in floods and fires and dumped in lakes. Now Edwards may have set a new standard: He found information on a melted disk drive that fell from the sky when space shuttle Columbia disintegrated in 2003.
"When we got it, it was two hunks of metal stuck together. We couldn't even tell it was a hard drive. It was burned and the edges were melted," said Edwards, an engineer at Kroll Ontrack Inc., outside Minneapolis. "It looked pretty bad at first glance, but we always give it a shot."
During Columbia's fateful mission, the drive had been used to store data from a scientific experiment on the properties of liquid xenon.
Most of the information was radioed to Earth during Columbia's voyage. Edwards was able to recover the remainder, allowing researchers to publish the experiment in the April issue of a science journal, Physical Review E.
That led Kroll Ontrack to share details of its salvage effort.
Columbia broke apart during re-entry into the atmosphere on Feb. 1, 2003, killing its seven astronauts. The shuttle had been damaged at launch by foam insulation that fell off an external fuel tank.
Like other Columbia debris, the mangled disk drive turned up in Texas. It was six months after the disaster when a NASA contractor sent the drive to Kroll Ontrack, which specializes in data recovery.
Edwards had reason for pessimism. Not only were the drive's metal and plastic elements scorched, but the seal on the side that keeps out dirt and dust also had melted. That made the drive vulnerable to particles that can scratch the tiny materials embedded inside, destroying their ability to retain data in endless 0s or 1s, depending on their magnetic charge.
However, at the core of the drive, the spinning metal platters that actually store data were not warped. They had been gouged and pitted, but the 340-megabyte drive was only half full, and the damage happened where data had not yet been written.
Edwards attributes that to a lucky twist: The computer was running an ancient operating system, DOS, which does not scatter data all over drives as other approaches do.
- 1 Kareena and Akshay in Venice: Ready, Action !
- 2 Blessed Alphonsa canonized by Pope Benedict, becomes Indias first woman saint
- 3 Infosys not to raise Axon bid, rival HCL set to make largest overseas IT acquisition
- 4 Market welcomes RBIs CRR cut but wants more
- 5 Photo call for 007 Quantum of Solace in Moscow
- 6 Meg Ryan at the Middle East International Film Festival
- 7 Holocaust survivorss love story inspired a book called Angel Girl
- 1 Sensex zooms up 781 points, posts biggest percentage gain since May 2004 on government assurances
- 2 Axis Bank posts 77 percent jump in net profit, plans 50:50 JV with Banque Privee to form asset management co.
- 3 Paul Krugman wins Nobel Prize in Economics for new trade theory
- 4 India inks "historic" 123 Agreement with the US, ends 34 years of nuclear isolation
- 5 Blessed Alphonsa canonized by Pope Benedict, becomes India's first woman saint
- 6 Infosys Technologies posts 30.2 percent jump in net profit, cuts growth forecast
- 7 Market welcomes RBI's CRR cut but wants more
- 1 Looks alive ! Gigantic jaguar bike costs $570,000
- 2 Johnny Depp comes back to "Caribbean 4" with largest payment
- 3 5 foods which will disappear from your table forever
- 4 7.7 km, World deepest 'fish family' filmed: "We are not lonely"
- 5 "iPhone killer" Nokia 5800 XpressMusic launched in India
- 6 AIDS pioneers and cancer researcher win Nobel prize
- 7 No hamsters or "exotic pets" for kids: more dangerous than cat and dog
|
|
