I know this has been covered by a few dozen people, but backup your backup's backup.
Having worked tech support for storage devices over the past 5 years, I've had to personally tell many people that their drive is corrupted/broken, and thus all of their family photos/baby's first steps video/wedding photos/life's work is either unrecoverable or exceedingly expensive to recover. This is the hardest part of my job, and it never gets any easier to take. I can't even imagine how it is to hear something like that.
Do NOT depend on RAID... just cause it's "Redundant" doesn't mean it's backed up. RAID only protects you against a single failure mode: a failed drive.
RAID will simply not protect you against:
power fluctuations (power loss, brownout, spikes, surges...) bit rot, stripe and filesystem corruption, acts of god ("crap, the basement flooded"), acts of human ("which folder did I just delete?"), etc, etc.
You CANNOT protect data 100%. There is ALWAYS some coincidence that can happen to mess everything up. The best you can do is have as many layers of backups as financially possible, and make sure you don't keep them all in the same place! Keep AT LEAST one offsite (different state) backup.
In short, if you can't replace something digital, then make sure you have multiple backups of it, with some in a completely different location.
The metal paint - eh - that'll heat up too - remember the photoelectric effect, as per Einstein. Wrong.
The photoelectric effect is the phenomenon where light shining on certain metals cause a release of electrons. The energy from the photons is converted to escape and kinetic energies of the electrons.
Besides, millimeter waves are not sufficiently energetic to cause electron release.
i do phone support for BFG, and i've seen the playable demo. and yes, it's gorgeous.
the demo was run on an AMD dualcore running at least 2 GHz on both cores, a gig of ram, the BFG 7800GTX, and the REQUIRED Ageia PhysX card, resolution couldn't have been higher than 1024x768. it looks fantastic, but after throwing a gravity grenade, the framerate slows down to below 15. the "gravity grenade" pulls literally thousands of objects to a central location, everything from boxes to huge pipes to fluid. the fluid dynamics are breathtaking, and so are the cloth reactions. we saw the assault rife tear apart a big flag... strips fell down indistinguishable from actual falling cloth. and that fps crawl was in single player.
this game was without a doubt designed for nextgen systems... using current tech, you'd probably need quad sli with the 7950GTX with at least 3 gig RAM and god knows what CPU.
At work i'm forced to work on a crappy WinNT box, so crappy in fact that firefox dies after a couple minutes. beware to everyone running IE6... one of those links apparently had a bit more then meta refresh. i started getting all sorts of activex, script, and download dialogs, along with a bunch of popups. the system locked, and on boot, even in safe mode, windows explorer refuses to run, even from taskmgr. my work box is pooched.
I'm just glad we're finally switching to gentoo at the office, and good timing too: i'll be getting it installed in a day or so.
"These are people that got scooped up off a battlefield, attempting to kill U.S. troops, and I wanna make sure before they're released that they're not gonna kill again." -G.W.Bush
"5% of prisoners were picked up by U.S. troops... on the battlefield, or anywhere else."
"80% of the detainees were handed over by the Pakistanis or the Northern Alliance." -Seaton Hall Law researchers reviewing case files of detainees.
thank you public radio for opening my eyes a bit more...
Classic. An attempt to refute a statement with an article from a user-editable non-scientific online source on a very controversial subject with questionable citations.
Not that I have any better information...
uh... wrong.
the only feasible way of setting up a space elevator is to have the "top floor" at geosync orbit (around 62000 mi ?). if the cable broke, it wouldn't fling the "top floor" unless the cable's mass was a significant fraction of the total system's (cable and top floor) mass.
i'd like to see a statistical analysis of that horrid ET game for Atari... see how many players committed seppuku after finding out the levels are all the same. i'll bet it's in the thousands at least.
or, see exactly how dumb the grunts in halo are...
agreed... the guy is a moron. in special relativity, the unit scheme is based upon the speed of light. since it is constant (as far as we know now), you can use it as a conversion factor. the "absurd" demensionless velocity 1 is the speed of light. (3e8 m/s)/c = 1. subluminal velocities are fractions of 1, you just divide v by c. position in spacetime geometry is measured in seconds (think "light seconds"), and acceleration is measured in inverse seconds (s^-1). mass comes out real nice to be kilograms, and momentum is kilograms as well. superluminal velocities give undefined forms that violate causality, thus, pastward "time travel" is prohibited. one can effectively travel forward in time by getting on a very fast spacecraft, approach c for a while, slow down, and come back to earth. depending on the acceleration and (spaceship) time spent at high velocities relative to earth, less time will have passed on the spaceship then on earth. since humans can withstand only about 1.5g accelerations for extended periods, it would take months to approach any velocity suitible for intersteller travel or futureward time travel.
Slashdot Mirror
I'm REALLY not a lawyer, but I can't really see the penalty definied! This is all bullshit?
Xen is good. KVM won't run on my intel atom boards anyway... No point in expecting all cpus to support hardware virtualization.
HVM is slower than Paravirtualization anyway... as a rule.
I know this has been covered by a few dozen people, but backup your backup's backup.
Having worked tech support for storage devices over the past 5 years, I've had to personally tell many people that their drive is corrupted/broken, and thus all of their family photos/baby's first steps video/wedding photos/life's work is either unrecoverable or exceedingly expensive to recover. This is the hardest part of my job, and it never gets any easier to take. I can't even imagine how it is to hear something like that.
Do NOT depend on RAID... just cause it's "Redundant" doesn't mean it's backed up. RAID only protects you against a single failure mode: a failed drive.
RAID will simply not protect you against:
power fluctuations (power loss, brownout, spikes, surges...)
bit rot, stripe and filesystem corruption,
acts of god ("crap, the basement flooded"),
acts of human ("which folder did I just delete?"),
etc, etc.
You CANNOT protect data 100%. There is ALWAYS some coincidence that can happen to mess everything up. The best you can do is have as many layers of backups as financially possible, and make sure you don't keep them all in the same place! Keep AT LEAST one offsite (different state) backup.
In short, if you can't replace something digital, then make sure you have multiple backups of it, with some in a completely different location.
Wouldn't that be stopped by firewall though? IIRC, you have to first allow port 22 or something from OS X, then you can remote login.
I ssh into my wife's macbook to run backups. I just enabled sshd. I didn't have to open the port.
Yes, because you were on the same local network, without any firewalls between the two computers.
If you think most people can learn networking without pictures or diagrams, I think you should stop assuming things about the way people learn.
too bad string theory is about as plausible as religion... yeah, i'll take the flamebait mod. string theory isn't all that elegant.
right... that's why he releases it with a Creative Commons license...
uh... Cellfactor
i do phone support for BFG, and i've seen the playable demo. and yes, it's gorgeous.
the demo was run on an AMD dualcore running at least 2 GHz on both cores, a gig of ram, the BFG 7800GTX, and the REQUIRED Ageia PhysX card, resolution couldn't have been higher than 1024x768. it looks fantastic, but after throwing a gravity grenade, the framerate slows down to below 15. the "gravity grenade" pulls literally thousands of objects to a central location, everything from boxes to huge pipes to fluid. the fluid dynamics are breathtaking, and so are the cloth reactions. we saw the assault rife tear apart a big flag... strips fell down indistinguishable from actual falling cloth. and that fps crawl was in single player.
this game was without a doubt designed for nextgen systems... using current tech, you'd probably need quad sli with the 7950GTX with at least 3 gig RAM and god knows what CPU.
At work i'm forced to work on a crappy WinNT box, so crappy in fact that firefox dies after a couple minutes. beware to everyone running IE6... one of those links apparently had a bit more then meta refresh. i started getting all sorts of activex, script, and download dialogs, along with a bunch of popups. the system locked, and on boot, even in safe mode, windows explorer refuses to run, even from taskmgr. my work box is pooched.
I'm just glad we're finally switching to gentoo at the office, and good timing too: i'll be getting it installed in a day or so.
So careful with those links...
"These are people that got scooped up off a battlefield, attempting to kill U.S. troops, and I wanna make sure before they're released that they're not gonna kill again." -G.W.Bush
"5% of prisoners were picked up by U.S. troops... on the battlefield, or anywhere else."
"80% of the detainees were handed over by the Pakistanis or the Northern Alliance." -Seaton Hall Law researchers reviewing case files of detainees.
thank you public radio for opening my eyes a bit more...
Classic. An attempt to refute a statement with an article from a user-editable non-scientific online source on a very controversial subject with questionable citations.
Not that I have any better information...
uh... wrong. the only feasible way of setting up a space elevator is to have the "top floor" at geosync orbit (around 62000 mi ?). if the cable broke, it wouldn't fling the "top floor" unless the cable's mass was a significant fraction of the total system's (cable and top floor) mass.
ah, but the ozone layer's been healing ever so slowly for 5-10 years. the hole has shrunk, so nuts to that idea.
i'd like to see a statistical analysis of that horrid ET game for Atari... see how many players committed seppuku after finding out the levels are all the same. i'll bet it's in the thousands at least. or, see exactly how dumb the grunts in halo are...
agreed... the guy is a moron. in special relativity, the unit scheme is based upon the speed of light. since it is constant (as far as we know now), you can use it as a conversion factor. the "absurd" demensionless velocity 1 is the speed of light. (3e8 m/s)/c = 1. subluminal velocities are fractions of 1, you just divide v by c. position in spacetime geometry is measured in seconds (think "light seconds"), and acceleration is measured in inverse seconds (s^-1). mass comes out real nice to be kilograms, and momentum is kilograms as well. superluminal velocities give undefined forms that violate causality, thus, pastward "time travel" is prohibited. one can effectively travel forward in time by getting on a very fast spacecraft, approach c for a while, slow down, and come back to earth. depending on the acceleration and (spaceship) time spent at high velocities relative to earth, less time will have passed on the spaceship then on earth. since humans can withstand only about 1.5g accelerations for extended periods, it would take months to approach any velocity suitible for intersteller travel or futureward time travel.
I'm really intrigued by the temperature-induced crystal structure change. Never really thought about that possibility.
Just you wait... the story's only been up for half an hour...