Re:Excellent RAID reference
on
Basics of RAID
·
· Score: 1
There is also a good one at storage review: http://www.storagereview.com/guide2000/ref/hdd/per f/raid/index.html
The original posted article is quite lame - they say raid 10
can only survive 1 drive failure, this is wrong it can
survive 2 if they are not in the same mirror set.
Perhaps its just my system, but I've been actually less happy as the version numbers went up. I've found it to be less responsive, more likely to either crash or time out on connections, and just in general act flakey. And the memory use can become excessive. (what is it doing with 125Mb of memory?)
Dude, I think you are way too paranoid, and I'm more paranoid than most.
However this is all pretty pointless unless they can get in the cockpit to control the plane. No pilot will open that door no matter how many people are being offed in the main cabin.
I suppose a w-fi enabled pda could be used to remotely trigger a bomb, but it would need to be in the main cabin and not in the baggage. Given that Al Queda has had 15 years to blow up planes it most not be that easy to get one on the plane, Ramsey Yousef's one attempt not withstanding.
And simple and reliable are also preferred over convenient but problematic. A traditional time or barometric fuse are the way to go. Mr. Terroris doesn't want to get the NO ROUTE TO HOST message.
I agree your point of depriving the use of that particular spigot, though of course they might have one in their backyard too. I've no idea the default settings on most wifi routers for most allowed connections (mine is secured), I guess 255 is the most on Class C. But one could argue that if a large number of people picked up on the open access they could in effect deny the owner his own open port (hopefully the dope would notice before then).
As for the physical vs virtual trespass.. it is not an area I know of much case law. If you join an open wi-fi net you should have a reasonable expectation that its not open because the guy wants to give away free access to his bandwidth but more likely through his lazieness/incompetence. So I'm not sure I can fully buy into the implied difference in physical trespass and using someone elses equipment to route your data packets?
Clearly manufacturers need to do a much better job of default settings. I would start with a default netid of 'PRIVATE'.
that might be a better analogy - its like using your neighbors garden hose to water your lawn. Afterall, the tap is not locked. Likewise the cost of the 'service' is similar and you using some one day for your lawn is not likely to be noticed.
Isn't it time just to put a link to hackaday?
on
Build Your Own Chat-Cord
·
· Score: 3, Informative
just about everything in this category ends up having been posted to hackaday.com a week earlier. Time to redirect the category to their site.
Okay, I'll give you the answer: you'll figure out that Democrats represent more than 50% of the population in the senate, even though they're in the minority.
Dude get a grip. House of Representatives. Proportional
representation. R 232 D 202
Republicans complained for 40 odd years of getting Dem rule
down their throat but at least they didn't whine every day
out it.
Betamax/VCR was not promoted to copy movies and then give away to anyone - it was promoted for personal use of the captured video.
Note also that the SCOTUS ruling did not in fact rule Grokster et al illegal in this case, they simply said that elements such as how the device is promoted need to be considered by the lower court which had ruled in favor of Grokster based on the Betamax ruling.
The people at the LHC have been planning for large data
rates and storage requirements for quite a few years.
The computational and data-storage requirements for the LHC experiments will be staggering, according to Jamie Shiers, leader of the Database Group in CERN's IT division. "We project 5 to 8 petabytes [PB] of data will be generated each year, the analysis of which will require some 100PB of storage [of which a large fraction will hopefully be online] and more computing power than that supplied by the world's largest supercomputers," he says.
Does anybody know much about this company? From the website it doesn't sound like they have especially extensive resources to fight a patent suit either. If this guy things his 'invention' really is so dramatically different then he should be able to find a lawyer willing to bring the case and either take the standard cut or equity in the product. I'm guessing DLO is bluffing.
The RAID driver I have issues an alert anytime something odd happens and would be hard to miss on a single user system as it opens a browser window with the error. I have no idea how the linux drivers handle things - I'm sure they must write to syslog so it should be possible to broadcast this message similar to a kernel error.
As for the physical failings, it depends on the type and geometry. A RAID 01 can surive the failure of any one drive in each mirror pair. So in a 6 drive array (3 striped and 3 are mirrors) you could in theory survive a 3 drive failure if any one pair was not taken out. AFAIK a 50 or 53 can only survive the failure of 1 drive, pls check this though.
You people don't get it do you. RAID is not for archival. It is to survive a hardware failure &/or increase speed. It is not meant as a backup device to archive data. Accidentally delete a file and its gone from your RAID. Accidentally overwrite a file with same name, the original is toast. Lose two drives in your RAID array, good chance your data is gone.
As others have said, optical may not be as reliable as once thought, and is not practical for large files. While tape suffers from drive obsolescence, the media aging rate is fairly well known and less random than optical and can be planned for.
You don't have to wear it on a helmet. It can be mounted on anything, for instance a tripod just like a regular camcorder. This guy didn't indicate if they are recording from one fixed location or if somebody is constantly changing the recording position. If they need mobility, then yes you are right they would be better with another alternative.
If you have a laptop that can accept video in you can use any number of very durable helmet cams and store your video compressed on your laptop. Kind of kills two birds as I'm guessing you ultimately take your DV and make it available on web or by cd anyways.
How our two Kyoto friends want to acellerate the destruction of stratospheric ozone, increase nitrogen oxides, etc and in general contribute to global warming. Guess they figure its ok as long as they fly the planes over somebody elses country.
certainly many are. And many (most?) seem overly concerned with 'linking', and in fact many times things just devolve to no original content - just the same story or post hacked up and linked to.
Personally I try to link only as reference material, not original content. There are occasions I'll feel someone else has captured the point exceptionally well, but its rare. Afterall, anybody can type a topic into google and find links, they don't really need you to do it for them.
Yes but then if we didn't give Johnny a calculator to do his math test Johnny would be real bummed out when he failed and his parents would wig on the teacher and school and we all know teachers and schools don't want confrontation.
Its just symptomatic of the decline of our society. Empowerment baby.
Slashdot Mirror
There is also a good one at storage review:r f/raid/index.html
http://www.storagereview.com/guide2000/ref/hdd/pe
The original posted article is quite lame - they say raid 10 can only survive 1 drive failure, this is wrong it can survive 2 if they are not in the same mirror set.
oo ooo dd ddd odo ooo o dodo ddd doo o d oooo od d d ddd ood ddo oooo d ddd odoo o od odo do ooddoo
Perhaps its just my system, but I've been actually less
happy as the version numbers went up. I've found it to be
less responsive, more likely to either crash or time out
on connections, and just in general act flakey. And the
memory use can become excessive. (what is it doing with
125Mb of memory?)
Dude, I think you are way too paranoid, and I'm more paranoid
than most.
However this is all pretty pointless unless they can get in
the cockpit to control the plane. No pilot will open that
door no matter how many people are being offed in the main
cabin.
I suppose a w-fi enabled pda could be used to remotely trigger
a bomb, but it would need to be in the main cabin and not in
the baggage. Given that Al Queda has had 15 years to blow up
planes it most not be that easy to get one on the plane,
Ramsey Yousef's one attempt not withstanding.
And simple and reliable are also preferred over convenient
but problematic. A traditional time or barometric fuse
are the way to go. Mr. Terroris doesn't want to get the
NO ROUTE TO HOST message.
not only that but it has been shown that fingerprint id
methods can be circumvented fairly easily without even
chopping a finger off.
He was on automatic renewal and didn't know it. Moral: read the fine print before sending the subscription card in.
Poster - could you make Wired sound any more evil? Or did you
not read their explanation either.
I belive AMD no longer has production constraints with the
Dresden FAB coming on line.
this website surely isn't all that remains of that fine
publication is it?
I agree your point of depriving the use of that particular spigot,
though of course they might have one in their backyard
too. I've no idea the default settings on most wifi routers
for most allowed connections (mine is secured), I guess 255
is the most on Class C. But one could argue that if a large
number of people picked up on the open access they could in
effect deny the owner his own open port (hopefully the dope
would notice before then).
As for the physical vs virtual trespass.. it is not an area
I know of much case law. If you join an open wi-fi net you should
have a reasonable expectation that its not open because the
guy wants to give away free access to his bandwidth but more
likely through his lazieness/incompetence. So I'm not sure
I can fully buy into the implied difference in physical
trespass and using someone elses equipment to route your
data packets?
Clearly manufacturers need to do a much better job of
default settings. I would start with a default netid of
'PRIVATE'.
that might be a better analogy - its like using your neighbors
garden hose to water your lawn. Afterall, the tap is not
locked. Likewise the cost of the 'service' is similar and you
using some one day for your lawn is not likely to be noticed.
just about everything in this category ends up having been
posted to hackaday.com a week earlier. Time to redirect
the category to their site.
Not until you show that the companies that produce the guns
actively promote the use of their products to commit crimes.
Betamax/VCR was not promoted to copy movies and then give away
to anyone - it was promoted for personal use of the captured
video.
Note also that the SCOTUS ruling did not in fact rule Grokster
et al illegal in this case, they simply said that elements
such as how the device is promoted need to be considered by
the lower court which had ruled in favor of Grokster based on
the Betamax ruling.
Does anybody know much about this company? From the website
it doesn't sound like they have especially extensive resources
to fight a patent suit either. If this guy things his
'invention' really is so dramatically different then he
should be able to find a lawyer willing to bring the case
and either take the standard cut or equity in the product.
I'm guessing DLO is bluffing.
The RAID driver I have issues an alert anytime something
odd happens and would be hard to miss on a single user
system as it opens a browser window with the error. I have
no idea how the linux drivers handle things - I'm sure they
must write to syslog so it should be possible to broadcast
this message similar to a kernel error.
As for the physical failings, it depends on the type and
geometry. A RAID 01 can surive the failure of any one drive
in each mirror pair. So in a 6 drive array (3 striped and
3 are mirrors) you could in theory survive a 3 drive failure
if any one pair was not taken out. AFAIK a 50 or 53 can
only survive the failure of 1 drive, pls check this though.
You people don't get it do you. RAID is not for archival.
It is to survive a hardware failure &/or increase speed. It
is not meant as a backup device to archive data. Accidentally
delete a file and its gone from your RAID. Accidentally
overwrite a file with same name, the original is toast. Lose
two drives in your RAID array, good chance your data is gone.
As others have said, optical may not be as reliable as once
thought, and is not practical for large files. While tape
suffers from drive obsolescence, the media aging rate is
fairly well known and less random than optical and can be
planned for.
You don't have to wear it on a helmet. It can be mounted on
anything, for instance a tripod just like a regular camcorder.
This guy didn't indicate if they are recording from one
fixed location or if somebody is constantly changing the
recording position. If they need mobility, then yes you are
right they would be better with another alternative.
If you have a laptop that can accept video in you can use any
number of very durable helmet cams and store your video
compressed on your laptop. Kind of kills two birds as I'm
guessing you ultimately take your DV and make it available
on web or by cd anyways.
A collosal waste of money on a poorly conceived project with even worse execution.
what is /. getting to push this book? this topic?
How our two Kyoto friends want to acellerate the destruction
of stratospheric ozone, increase nitrogen oxides, etc and
in general contribute to global warming. Guess they figure
its ok as long as they fly the planes over somebody elses
country.
certainly many are. And many (most?) seem overly concerned
with 'linking', and in fact many times things just devolve
to no original content - just the same story or post hacked
up and linked to.
Personally I try to link only as reference material, not
original content. There are occasions I'll feel someone
else has captured the point exceptionally well, but its rare.
Afterall, anybody can type a topic into google and find
links, they don't really need you to do it for them.
Yes but then if we didn't give Johnny a calculator to do his math test Johnny would be real bummed out when he failed and his parents would wig on the teacher and school and we all know teachers and schools don't want confrontation.
Its just symptomatic of the decline of our society. Empowerment baby.