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Data Storage

Ask Slashdot: Practical Bitrot Detection For Backups? 321

Posted by timothy
from the error-detected-goodbye dept.
An anonymous reader writes "There is a lot of advice about backing up data, but it seems to boil down to distributing it to several places (other local or network drives, off-site drives, in the cloud, etc.). We have hundreds of thousands of family pictures and videos we're trying to save using this advice. But in some sparse searching of our archives, we're seeing bitrot destroying our memories. With the quantity of data (~2 TB at present), it's not really practical for us to examine every one of these periodically so we can manually restore them from a different copy. We'd love it if the filesystem could detect this and try correcting first, and if it couldn't correct the problem, it could trigger the restoration. But that only seems to be an option for RAID type systems, where the drives are colocated. Is there a combination of tools that can automatically detect these failures and restore the data from other remote copies without us having to manually examine each image/video and restore them by hand? (It might also be reasonable to ask for the ability to detect a backup drive with enough errors that it needs replacing altogether.)"

Comment: Re:Medical (Score 4, Insightful) 161

by carlcmc (#45393411) Attached to: Stop Listening and Start Watching If You Want To Understand User Needs
No, I disagree. As someone who has some background in computers/it/programming (programming in C and fortran for fun in college as elective classes) as well as being Physician Assistant taking care of patients, I think you are totally off track.

Your customer is your customer - the users and purchases of your software. That would be like saying that you develop POS software and the customers in the hardware store are your customers ... . You thinking you know better than the medical professional as to how the program should work for me is the same as me telling you what development language or database backend you should use.

Listen to your customers ... highly educated physicians, physician assistants, nurse practioners who are highly analytic when they tell you there are good reasons to do things certain ways.

You act like easy to use and safe for patients are contradictions ...

I contend that I have used applications that were safe for patients that were easy to use and not easy to use and vice versa.

International Climate Panel Cites Near Certainty On Warming 510

Posted by Soulskill
from the bringing-the-heat dept.
mdsolar writes "An international panel of scientists has found with near certainty that human activity is the cause of most of the temperature increases of recent decades, and warns that sea levels could conceivably rise by more than three feet by the end of the century if emissions continue at a runaway pace. The scientists, whose findings are reported in a draft summary of the next big United Nations climate report, largely dismiss a recent slowdown in the pace of warming, which is often cited by climate change doubters, attributing it most likely to short-term factors. The report emphasizes that the basic facts about future climate change are more established than ever, justifying the rise in global concern. It also reiterates that the consequences of escalating emissions are likely to be profound." This comes alongside news of research into one of those short-term factors: higher than average rainfall over Australia. "Three atmospheric patterns came together above the Indian and Pacific Oceans in 2010 and 2011. When they did, they drove so much precipitation over Australia that the world's ocean levels dropped measurably." According to, "A rare combination of two other semi-cyclic climate modes came together to drive such large amounts of rain over Australia that the continent, on average, received almost one foot (300 millimeters) of rain more than average. ... Since 2011, when the atmospheric patterns shifted out of their unusual combination, sea levels have been rising at a faster pace of about 10 millimeters (0.4 inches) per year."

Comment: you're wrong (Score 2) 130

by carlcmc (#42979273) Attached to: Unnecessary Medical Procedures and the Dangers of Robot Surgery
what robots can do is achieve automation is standard settings. No two patients anatomy is exactly alike. Common wisdom in surgical culture is that any monkey or individual can do a simple surgery. That is not what you need people for. You need people for the *judgement* of what to do in certain situations. To appropriately assess and make the right medical judgement during surgery when someone's life is on the line is not something that will be done autonomously by robots.

Comment: For the IT crowd (Score 1) 130

by carlcmc (#42979217) Attached to: Unnecessary Medical Procedures and the Dangers of Robot Surgery
From health care professional standpoint:

Blaming robots for bad surgical outcomes is like blaming PCs for a virus or an accidentally deleted system file.

Surgeons are people. People have the ability to make mistakes. If you make a mistake with your computer, you lose some photos, or trash your hard drive etc.
If you make an accidental mistake as a surgeon -- whether done open or robotically -- bad things happen to people.

Thus, just like on here people say IANAL and that you should get *good* legal advice. You should go to surgeons that a large experience. With more experience, there is less chance of bad outcomes happening.

Comment: Jesus created us (Score 0) 1014

by carlcmc (#37180014) Attached to: Evangelical Scientists Debate Creation Story
All the imagining of humans fails to grasp the divine. We have a loving heavenly Creator who created us and cares for us. God has been maligned by Satan and many humans over the centuries to the point that people now believe that he didn't create us, or if he did that he is somehow evil and attribute to him the evil of this world that is from Satan. Jesus cares for you, loves you and desires to save. God so loved the world, that he gave his only Son to die on a cross that he could fully demonstrate how much love he has for humans to try and save them from their sin and Satan's deceptions.

Just because you can't prove we were created doesn't make it less so. God spoke and created us.

Comment: Re:Israeli Army recruits and veterans (Score 1) 561

by carlcmc (#31733604) Attached to: Young Men Who Smoke Have Lower IQs
"This is one of the reasons some Palestinian groups give for targeting Israeli civilians - since every Israeli civilian is also a military reservist, these groups state that there is no such thing as an Israeli civilian in the traditional sense."

Which is just their justification for murder. Targeting civilians because they just might be able to be in the military at some point ... puhleasse.

BC Prof Suggests Young Children Need Less Formal Math, Not More 427

Posted by timothy
from the all-in-favor-say-pi dept.
DesScorp writes "Professor Peter Gray, a developmental psychologist and researcher at Boston College, recounts an experiment done in New Hampshire schools in 1929, where math was completely taken out of the curriculum of the poorest schools from the area until the sixth grade. The results were surprising; with just one year of math under their belts, the poor students did as well or better than students from better schools by the end of the sixth grade year, despite the fact that the better schools had math in their curriculum all throughout elementary school. Professor Gray thinks children are not mentally wired for the kind of formal math instruction that is taught in schools, and that we'd be better served by putting off the teaching of theory until the seventh grade. He scoffs at the notion that if children are failing with current levels of math instructions then we should double down and make them do more math in school."

Comment: what nut job you are then (Score 1) 1324

by carlcmc (#30939440) Attached to: US Grants Home Schooling German Family Political Asylum
" but it does not in my mind give one free license to program children with it."

Train up a child in the way he should go and when he is old he will not depart from it. Our world would not have decended into so much evil as it has if parents taught their children of Jesus' love for them and taught them to demonstrate love for their neighbors. Are you really suggesting that there is something wrong with trying to raise one's children to love God and love their neighbors as themselves?

Ursula Le Guin's Petition Against Google Books 473

Posted by kdawson
from the circling-the-wagons dept.
Miracle Jones blogs about the petition against the Google Book Settlement created by science fiction writer Ursula Le Guin, winner of five Hugo awards and six Nebulas. Le Guin is urging professional writers who are opposed to the terms of the settlement to sign her online petition before the January 28th deadline. From the petition: "The free and open dissemination of information and of literature, as it exists in our Public Libraries, can and should exist in the electronic media. All authors hope for that. But we cannot have free and open dissemination of information and literature unless the use of written material continues to be controlled by those who write it or own legitimate right in it. We urge our government and our courts to allow no corporation to circumvent copyright law or dictate the terms of that control."

Games Fail To Portray Gender and Ethnic Diversity 590

Posted by Soulskill
from the overrepresented-demon-alien-demographic dept.
eldavojohn writes "A new study has found that game characters tend not to reflect cultural diversity. According to the paper from researchers across four universities (PDF): 'A large-scale content analysis of characters in video games was employed to answer questions about their representations of gender, race and age in comparison to the US population. The sample included 150 games from a year across nine platforms, with the results weighted according to game sales. ... The results show a systematic over-representation of males, white and adults and a systematic under-representation of females, Hispanics, Native Americans, children and the elderly.' The researchers also note that games 'function as crucial gatekeepers for interest in science, technology, engineering and math,' and that without these groups represented properly, 'it may place underrepresented groups behind the curve.'"

"Stupidity, like virtue, is its own reward" -- William E. Davidsen